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January 2019 Issue of Design007 Magazine Available Now
01/15/2019 | I-Connect007
A Fractal Conversation with Jim Howard and Greg Lucas
01/15/2019 | Barry Matties and Andy Shaughnessy, I-Connect007
Words of Advice: Streamlining Your Design Process
01/14/2019 | Andy Shaughnessy, Design007 Magazine
Rainer Beerhalter Discusses His AltiumLive Munich Presentation
01/11/2019 | Andy Shaughnessy, Design007 Magazine
Birds of a Feather: PCB Carolina and the RTP Designers Council
01/10/2019 | Andy Shaughnessy, Design007 Magazine
From Concept to Manufacturing With Zuken
Guest Editor Kelly Dack queries Zuken's Senior Technical Marketing Manager, Humair Mandavia, about Zuken's new CR-8000 suite of tools that promises a fresh approach to design solutions, from concept to manufacture.
The Fabricator's Newest Tool: The Call Center
For many prototype PCB makers, survival has depended upon being nimble, resourceful and of high value to design teams. The emergence of the e-commerce model meant that a local fabricator could develop a global customer base. But e-commerce-based board makers have a reputation for being difficult to reach. Now, the savvy PCB manufacturer is investing in the latest, greatest tool in a company's toolkit: the 24/7 call center.
The Business and Technology Climate in China
Rich Chenoweth, VP of global sales and marketing for Maskless Lithography, talks with Guest Editor Marcy LaRont about the business climate in China, as well as technology trends there. He sees an expansion of Chinese companies that serve the China market.
A View of the European and Chinese Markets
Erhard Hofmann, managing director of AdoptSMT Group, discusses the European and Chinese PCB markets. Based in Europe, AdoptSMT Group is a global supplier of previously owned equipment and spare parts.
Karel Tavernier: Gerber Definitely Not "Dumb" Data
Karel Tavernier, managing director of Ucamco, owner and caretaker of the Gerber format, replies to Julian Coates' letter: "First, what is Gerber? It is an image description language used specifically by the bare board industry that enables PCB designers to transfer accurately and reliably even the most complex PCB design data, including drill data. It is a superlative image description format. No more, no less."
Maxed Out: Ray Bradbury Takes Flight
There were a number of science fiction authors whose works I devoured when I was growing up, such as Robert Heinlein, Isaac Asimov, and Arthur C. Clark. And, of course, the works of Ray Bradbury were a cornerstone of my collection. Ray had a unique style that really set him apart from the crowd.
Zuken Keeps its Eyes on the Cloud
Zuken Senior Technical Marketing Manager Humair Mandavia and Editor Andy Shaughnessy discuss the company's plans to utilize cloud computing for its tool sets, now and into the future.
Andy Kowalewski: Time for a Single Data File Format
Some design files go overseas, some stay local and all need to have thought put into them. Mistakes can happen easily; I've been embarrassed more than once to discover the wrong files were sent, or files were missing. The single, standard file format is an absolute blessing, right up there with food, clothing, shelter and quality red wine. By Andy Kowalewski.
HyperLynx: Not Just an SI Tool Anymore
Steve McKinney of Mentor Graphics describes the evolution of the HyperLynx tool. In just a few years, HyperLynx has gone from a signal integrity tool to a full PCB design analysis suite.
Maxed Out: Of Birthdays and Treadmills
Well, as usual, I'm bouncing off the walls with excitement. I just celebrated a birthday (I'm now middle-aged, assuming I live to be 110) and I've decided to stop being a "desk potato" and get some exercise. I invested in a super cool treadmill desk that allows you to work on your laptop while walking on the treadmill. Before you know it, I'll have 6-pack abs!
Pyralux TK Scores TKO on High-Speed Challenges
Guest Editor Kelly Dack speaks with DuPont's Glenn Oliver and Mark Dirks about their new Teflon/Kapton laminate system that's used worldwide to address signal integrity issues.
Maxed Out: Two Longs and a Short
We columnists love to get e-mails from grateful readers. This week I'll share an e-mail from a reader whose story may sound familiar to you, especially if you've been in the industry long enough to have "senior" in your title! And we have some recommendations from Max's Book Club; it's not a popular as Oprah's Book Club (yet), but hope springs eternal!
Maxed Out: Apple Takes Over my Home
I don't know why, but for some reason I thought that Apple TV referred to a digital TV that was in some way "Apple-compliant" or "Apple-friendly." Oh, was I wrong. Apple TV actually refers to a little box that sits next to your regular digital TV and connects to it via an HDMI cable. The Apple TV also connects to your wireless router, thereby allowing you to stream content from the Internet and/or from your iPad or whatever. Apple continues its conquest apace!
Letter to the Editor: Gerber's "Dumb" Data is no Advantage
Last week's column about the recent SMTA Atlanta Designers' Roundtable held struck a chord. The section about data transfer formats (everyone in the room used Gerber, and many used both Gerber and ODB++) drew this letter to the editor from Julian Coates of Mentor Graphics. Are there really any advantages to using Gerber?
Maxed Out: In My Day, Part 2
This week, Max posts a bit of fan mail and continues to look at advances in telephone and television technology. We forget how far TVs have advanced in a few decades. In the old analog days, it was common for the TV image to move so that the upper part of the picture disappeared and reappeared at the bottom of the screen. You might be watching "I Love Lucy" with her head and torso at the bottom of the screen and her legs walking around above her. Some of you remember!
Manufacturing Perspectives: Europe, US and China
Guest Editor Michael Weinhold of the EIPC talks to industry veteran Gene Weiner. They compare the recent lineup of industry trade shows and discuss their differing views on the state of the industry's growth and the world's economies.
Polar Enhances its Impedance Test System
Polar Instruments' Ken Taylor chats with Guest Editor Mark Thompson during IPC APEX EXPO about the company's Controlled Impedance Test System and Polar's outlook for the future.
Gary Ferrari Updates on IPC-2221 Design Standard
Gary Ferrari, director of technical support at FTG Circuits and IPC Designers Council founding member, speaks with Guest Editor Bob Neves about the activities of the council and the upcoming revision to the IPC-2221 Design Standard.
Benefits of Coplanar Waveguide Over Ground
Why should we consider using coplanar waveguide over ground (CPWG)? It allows us to narrow the trace almost arbitrarily for a given layer thickness while maintaining a 50 or 75 ohm impedance. CPWG also allows less current into the air than a microstrip structure, because the topside ground copper shunts the field current locally to the topside ground. By Steve Hageman.
Chip and PCB Co-design: Cut Costs and Improve Quality
Nearly every IC finds its way onto a PCB. Despite this fact, most PCB designs are an afterthought and never considered in the planning of the chip. The PCB is difficult to complete on a minimal number of layers and signal integrity is often compromised. But these problems can be solved by implementing a cross-domain co-design methodology that considers the layout requirements of the PCB (without looking over the package substrate) in the context of floor-planning the chip.
Nippon Mektron Prepares for New Printed and Flex Products
Nippon Mektron's Dr. Hirofui Matsumoto provides a glimpse of several printed and flexible electronics products that the company has been developing. His company has established a robust supply chain of printed electronic materials suppliers to ensure new product introduction success. Nippon Mektron, a 40-year old company, is excited about the potential of printed electronics product opportunities and actively pursuing them.
PCB Libraries: A Global Library Vending Machine
PCB Libraries is back! And, as PCB Libraries President Tom Hausherr explains, the "new and improved" PCB Libraries is on track to become the world's first Global Library Vending Machine, $1.00 at a time. Why shouldn't designers who spend hours creating library parts earn royalties for these parts?
Intercept's Design Software Moving Into 3-D
Intercept Technology recently revamped the GUI of their Pantheon design suite. North American Sales Director Dale Hanzelka chats with Editor Andy Shaughnessy about the new interface, the challenges their customers are facing, and the drivers behind Intercept's journey into the third dimension.
MIA: The Next Generation of Designers?
San Diego design icon Mike Creeden discusses the morning presentations here at the Designers Forum, including his take on the critical need for PCB design education. He also outlines plans for Tuesday night's Designers Council meeting hosted by his company, San Diego PCB.
ODB++: An Open Alliance
ODB++ has long been considered a de facto standard as a CAD database exchange format. But is it an open format? Julian Coates of Mentor Graphics explains why the term "alliance" is used to describe how ODB++ serves as a data hub for any software tool that must work with other tools to bring a design from layout to manufacture.
Bruce Archambeault: EMC Issues A Fact of Life
Dr. Bruce Archambeault, distinguished engineer with IBM, discusses the state of EMC, and why so many designers and engineers of all stripes attend DesignCon for help with analysis.
PCBs: Not Old-Fashioned Technology After All
Noted author and blogger Brian Bailey discusses the many characteristics that the worlds of ICs and PCBs have in common, and why PCBs should not be considered old technology.
Business Drivers for Next-Generation Materials
It's said that nothing happens in a vacuum. Oak-Mitsui's Bob Carter, Director of Business Development and Technology, explains how advancements to the next generation in one component often drive changes in other areas, including materials developed by his company.
Your AMI Model: A Peach or a Lemon?
Dr. Michael Steinberger, lead architect of serial channel products at SiSoft, discusses his hit DesignCon tutorial, "AMI Models: How to Tell a Peach From a Lemon." He and Todd Westerhoff, SiSoft's VP of software products, led the half-day tutorial, which drew a big crowd.
The State of PCB Design, 2011
While the economy slouched through 2011, the electronics industry, and PCB design and fabrication in particular, and showed signs of recovery. Is this market segment a bellwether of the economy? That's best left to the economists, but hopefully the rest of the economy will indeed increase its crawl from recession.
Cost Savings of Copper Wire Bonding
Copper wire bonding offers a substantial cost saving over gold wire bonding in packaging applications. Mustafa Ozkok, Atotech's Global Product Manager, Selective Finishing, tells Editor Pete Starkey how electroless palladium direct on copper offers an ideal substrate finish.
Practical Experience Manufacturing PCBs With Embedded Active and Passive Devices
The Advanced Multilayer process for embedded devices was developed in the mid-1990s and patented in 2004. Standard active and passive components are suitable for the AML process technique. The component attachment uses soldering or gluing with adhesives or any other technology like wire bonding, plating or sintering.
SMT Perspectives and Prospects
Over the last 10 years, Dr. Jennie S. Hwang has received many questions about best practices when a PCB comprises lead-free packages, tin-lead packages using lead-free solder paste, or lead-free solder paste. Concerns often arise regarding the resulting performance and reliability level in each scenario.
Thermal-Electrical and Mechanical Simulation of Packages
Kirsten Weide-Zaage offers a look at some new phenomena surrounding thermal-electrical and mechanical simulation of PoP, microBGA and TSV packages. Her department at the University of Hannover works with industry partners on a variety of projects related to advanced packaging.
The Bare (Board) Truth: What you Want vs. What you Get
This month, I hope to provide a better understanding of fabricator practices and preferences vs. design preferences. As Mick Jagger might say, "You can't always get what you want." But if you work with your fabricator, you'll usually get what you need anyway. Let's start with material selection and go from there.
Polar Fine-Tunes Flex-Rigid Stack-up Design Software
Martyn Gaudion, CEO of Polar Instruments and a PCBDesign007 columnist, tells Pete Starkey about the latest developments in design and documentation tools for flex-rigid stack-up. He discusses the background behind the development of Polar's Speedflex platform, and the need to keep such a potentially complex tool user-friendly.
Walt Custer Interprets the Market
This year, we've had the Fukishima disaster, the floods in Thailand, the U.S. debt and political stalemate, along with the financial crises facing Europe with the possible default of Greece and Italy. Market guru Walt Custer has had his hands full, but he sorts through all of the noise in this market update.
The Shaughnessy Report: Simplified Solutions Merges ECAD, MCAD
The gap between mechanical and electrical CAD continues to shrink. Keith Richman, president of Simplified Solutions, discusses his new IDF-To-3D tool. This free tool allows PCB designers and engineers to create 3D PCB designs without using MCAD software.
Travel Tips from RealTime's Unsung Hero, Kirk Wallace
Just in time for the holidays! I-Connect007 videographer Kirk Wallace, the unsung hero of the RealTime with...productronica team, offers his tips for transporting expensive camera equipment by air. Not to be missed for all you air travelers! For extra credit: Who do you think stole our camera - the airline or TSA?
Maxed Out: From Steam Engines to Wind Walkers
My degree is in control engineering, which means I studied electronics, mechanics, hydraulics and fluidics. But it's only been recently that I've come to appreciate mechanical systems as the things of beauty that they are. This week we'll take a look at a few mechanical systems that date to antiquity, and then focus like a laser (I should build a laser...) on my most recent project - The Wind Walker.
ODB++ Format Development Update
There's plenty of talk about data transfer standards these days. Mentor Graphics Business Development Manager Dave Wiens explains how ODB++ continues to evolve, thanks to a large installed base, and he also discusses the IPC-2581 transfer standard.
What is Trace Impedance and Why Do We Care?
When we hear the term "controlled impedance" trace, our first confusion might come from this question: Why does a trace have any impedance at all? And if it does, what does it mean that we somehow control it? And how is it that a trace has a potentially significant AC impedance? In this column, Doug Brooks examines these issues and much more.
Top 10 Issues In IBIS Models
Does your company perform incoming inspection on IBIS files? Incoming quality can be checked in a matter of minutes for many models. Once a file has passed QA, it can be placed in a shared model library. Familiarity with the IBIS website and the IBIS 5 spec can make troubleshooting models faster and easier. Here are the Top 10 problems encountered when using IBIS models. By Lynne Green.
Maxed Out: On the Road to Redmond
You never know what life may bring. I was just invited to give a talk at Microsoft's main campus as part of a really cool extravaganza on September 28. All I know for certain is that pianist Patrick Leonard (of Elton John and Madonna fame) will be performing, and I can speak about any topic I choose. Bill Gates may live to regret that!
Bridging the Design-Fab Gap
Yash Sutariya, Vice President of Corporate Strategy at Saturn Electronics, sits down with Editor Pete Starkey after his presentation "Bridging the Gap Between Design and Fabrication." Interestingly, most of the audience were fellow PCB fabricators--not the designers to which he'd intended on speaking.
Maxed Out: A Need for Mentoring Programs
My first employer, International Computers Limited, had a really good mentoring policy: Junior engineers like me were partnered with experienced team leaders. I'm pondering this now because I recently heard from a young design engineer at a large aerospace firm. The problem? No one is mentoring him. They just give him tasks and leave him to sink or swim. Does this sound like your company?
Mentor Graphics Embedding Valor Functionality
John Isaac of Mentor Graphics explains how the functionality of the Valor suite of DFM tools will be embedded into the Mentor Graphics PCB design tools, and how the two companies' cultures have meshed over the past year.
Be the "Go-To Person" at Your Company
Tellabs Principal Engineer Randy Cherry discusses why he's fired up about his job after watching a presentation by Rick Hartley at the Designers Forum in Las Vegas. He also details some of the challenges he faces qualifying new PCB fabricators and finding quality laminates at a reasonable price point.
Data May Not be Modified!
Or can it? Mike Tucker, Director of Engineering at Colonial Circuits, presented "Data May Not Be Modified" at this year's Designers Forum in Las Vegas. As he tells Guest Editor Kelly Dack, the presentation relates to how fabricators' hands are still tied due to PCB designers' requirements. Tucker has tips for breaking these ties that bind.
PCB Design, Fab and Assembly With Mass Design
Mass Design's founder Tony Bourassa explains the company's business which offers customers a rare service: Design, fabrication and assembly of PCBs in one location to help shorten time to market.
Knowledge is Power
Knowledge is power, and Germany wants to keep its educated designers from leaving. Professor Rainer Thuringer is a representative of the Federation of Electronic Design for Germany, Switzerland and Austria, and a university professor who teaches high-speed PCB design. He discusses the challenges in recruiting new European design students, his federation's partnership with IPC, and Germany's drive to keep electronics design talent in Germany.
Education Aspect Big Draw at Designers Forum
Chris Kershaw is principal PCB engineer at TAIT Radio Communications, a New Zealand-based company that builds two-way radios and infrastructure products. Kershaw explains how he passed his CID+ at APEX, and why he brought along staff members to learn new design techniques. He also discusses the company's help in the rescue effort after the Christchurch earthquake.
Zuken Claims Bigger Market Share
Second place is not such a bad place to be. Zuken Application Engineer Griff Derryberry believes Zuken's market share is rising, and he discusses an article that puts Zuken in the Number 2 spot worldwide.
Methods of Modeling Differential Vias
Accurate models for vias in a multilayer circuit board are necessary to predict link performance in the GHz regime. This paper describes a methodology to build a high-bandwidth, scalable first approximation circuit model using simple transmission lines of long vias typically used in thick backplane designs. Written by Bert Simonovich, Dr. Eric Bogatin and Dr. Yazi Cao.
Saving Time, Money with SI 'Simulation Lite'
Is it always necessary to conduct a lengthy signal integrity analysis when designing a multi-gigahertz PCB? Intel Principal Engineer Rich Mellitz says no. He discusses his DesignCon paper on "Simulation Lite," which describes a simpler method that can be just as accurate and far less time-consuming.
Engineering Startup on the Road to Success
There's no time like the present: When engineers Al Neves and James Bell had an idea for starting a new company, they didn't wait for the economy to improve. They launched Wild River Technology and never looked back. At DesignCon, Al sat down to discuss the founding of the company, the direction it's headed, and how their love of fly fishing shaped their plans.
Stadium Reports 27% Revenue Increase in 2010
Commenting on the company's outlook, Chairman Nick Brayshaw OBE said, "We remain optimistic that continued growth will be achieved from existing products and customers and will continue to win new business to increase our market share as the key to future success."
Estimating PCB Design Time and Complexity
One thing that I have had to do on my new PCB jobs is to make an estimate of how long the layout will take, or if it is even possible, given the PCB area. Most designers have some method of estimating design time, based on gut feel, past experience, or a spreadsheet. Here is a better way to estimate PCB design time and complexity.
DesignCon 2011 Show Wrapup
DesignCon 2011 is history, and this show seemed much busier than last year's event. This marked the first DesignCon since EE Time Group acquired the show last year. Sure, there were a few missteps - exhibitors complained that event staffers were unorganized, and speakers were furious over certain changes. But this show is a good omen for 2011.
IBIS AMI Standard Update With SiSoft
Todd Westerhoff, VP of software products for SiSoft, updates us on the ever-evolving IBIS AMI modeling standard, which SiSoft has taken a leading role in managing.
Designers' Guide to Lead-Free SMT
If you design boards for the European Union, this technical paper is for you. Vern Solberg addresses three issues designers need to consider during the planning phase of new product development: Component selection for lead-free applications, product exemption criteria and specifying compatible PCB material and finish. This paper was presented at IPC APEX EXPO 2009.
Maxed Out: Home is Where the Heart Is
Now that we've recovered from our vacation time and Snowpocalype 2011 has ended, we're all getting back in the swing of things. As usual, I'm running around in ever-decreasing circles and putting out fires, but I have an update or two for you.
Get it 'Right the First Time' With 3D STEP Models
PCB design tools are evolving, albeit slowly. Simulation tools now allow us to do amazing work before we build hardware. But we have been lacking this same tight integration from our CAD tools to the mechanical domain. Now this is changing, as more 3D STEP models are available, along with PCB design tools that can import them.
Tom Clifford: Science Fairs Offer View of Future Technologists
I recently judged a couple of junior high school science fairs. What an unforgettable experience! One youngster couldn't find any HP gages that were "good enough," so he wrapped a few coils around a hiker's compass, calibrated faint needle deflections, and captured the necessary data, now in micro-amps, accomplishing his purpose with elegant simplicity. The future is bright.
Designers Notebook: Defining Package Variations, Part 1
To assist the PCB designer and assembly process engineer considering use of these package families, an IPC task group developed IPC-7093, a new document that furnishes both guidance and end-product requirements. This month, we look at the many package variations of bottom termination components covered by IPC-7093.
Training Trends With Blackfox
The last few years have been tough for everyone, especially in the world of high-tech training. But CEO Al Dill of Blackfox Training Institute believes the worst is over, and he explains why training is picking up again.
PCB Trends With David Wolf
The D-36 Subcommittee is responsible for the IPC PCQR2 Database of test results from fabricators worldwide. David Wolf, VP of technical marketing for Conductor Analysis Technologies, discusses the subcommittee's latest efforts and the technology trends he's seeing in global test coupons, including aggressive inner-layer aspect ratios and an increase in HDI use by the mil/aero segment.
Intel Strives for Compatibility at Board Level
Intel breaks technological ground at the chip level while working within the mainstream of PCB manufacturing and assembly. Process Development Engineer Steve Vandervoort sat down with Editor Andy Shaughnessy at SMTA International to explain how Intel negotiates this balancing act.
Gary Ferrari: Embedded Design Document Gets Active
Gary Ferrari, director of technical support for FTG Circuits, is working to improve IPC's embedded design guide. He discusses its focus on active components as well as passives, and the guide's trajectory toward becoming a full-fledged document.
Manage Your Vias, Manage Your Design
As a CID and CID+ instructor for IPC, Kate Mayer is fond of saying "Manage your vias and you manage your design." She explains how these little holes went from being "necessary evils" to the linchpin of the modern PCB, and offers designers tips on managing their vias.
Video: Designers Council Eliminates Fees
A designer once said, half-jokingly, that he'd love to join the IPC Designers Council, but the $50 annual fee would be better used to feed his family. But now you can join the DC without starving your children. Anne Marie Mulvihill, IPC's director of professional development and the Designers Council, discusses the elimination of the DC fee, as well as plans for Designers Day at APEX 2011.
Don DeGroot Goes High-Speed With D-24 Subcommittee
Don DeGroot, President of CCNi and chair of the D-24 High-Speed/High-Frequency Test Methods Subcommittee, details the group's latest efforts measuring characteristic impedance, dielectric constant and dielectric loss and more.
Vern Solberg Gets to Bottom of IPC-7093 Spec
Packaging guru Vern Solberg of STC and Guest Editor Kelly Dack get to the bottom of the new IPC-7093 specification that provides land pattern and other guidelines for bottom termination components. Learn how quickly a spec can be developed when it's on the "fast track."
Optimizing BNC PCB Footprints for Digital Video Equipment
Today's video equpment operates at gigabit rates, necessitating the use of large coaxial BNC connectors. Non-optimized BNC footrpints can cause impedance mismatches, reflections and signal loss. In this paper, Tsun-kit Chin of National Semiconductor discusses some common issues with BNC footprints, such as problems with the connector-to-board transition, and offers techniques for transparent footprint designs.
Microstrip Line Characteristic Impedance and TDR
The characteristic impedance of a microstrip line is a complex function of frequency. Impedance changes are usually measured with time TDR, but does the observed impedance value depend upon rise time? What impedance value is actually visible in TDR of a line segment? Yuriy Shlepnev investigates in this app note.
New Column: Kate Mayer's "Connect With Kate"
To often, OEMs push PCB design projects onto their electrical engineers, computer technicians -- basically, anyone but the PCB designer. But it usually winds up costing the company time and money. That's what happens when companies try to trivialize our profession!
Better Never Than Late
Engineers can now work concurrently--on the same database--entering schematics and constraints. As they are working, they can even see edits from other project engineers in real-time, set protection barriers, reduce wasted communication efforts and coordinate efforts to maximize productivity.
Crosshatched Planes in Impedance-Controlled Flex-Rigid PCBs
While RF purists may feel discomfort at the thought of using crosshatch as a high-frequency return, using crosshatched planes on flex and flex-rigid PCBs is a realistic method of keeping impedance-controlled traces at a manufacturable dimension and retaining the desired flexibility of the assembly.
Maxed Out: My Creative Juices are Flowing!
I'm signing in from jolly old England this week, as we prepare for my dear old mother's 80th birthday. But I'm currently vacationing without my luggage, with which I hope to soon be reunited, so I have time to update you all on my successful smoke test of the "Man vs. Woman Display-O-Meter." A lack of smoke is always a good thing!
Understanding Propagation Loss
Guest Editor Mark Thompson chats with Richard Mellitz, Principal Engineer with Intel Corporation, about propagation loss--listen to discover exactly what propagation loss is, its significance and the future for specifications defining the issue.
Making the Circuit Design ECOsystem Work
The Circuit Design ECOsystem was created to help make life easier for design teams. But who are the typical customers, and how do they utilize the ECOsystem? Ray Rasmussen concludes our ESC Silicon Valley 2010 interviews with representatives of Screaming Circuits, Sunstone Circuits, NXP and National Instruments.
Does a Material's Dk Always Influence a Circuit?
John Coonrod, Market Development Engineer for Rogers Corporation, delivers a paper, "Laminate Dielectric Properties and Characterization," at APEX detailing Dk and its influence on high-frequency circuit construction. Test results found that, depending on how testing is done and how a circuit is designed, Dk may or may not influence the circuit.
Parker: Overcoming Embedded Capacitance Reluctance
The industry has been reluctant to use embedded capacitance materials. J. Lee Parker sits down with Mark Thompson to discuss why designers should look at buried capacitance, including EMI suppression, decoupling, and bypassing capacitance on top of the board in favor of less expensive innerlayer real estate.
Alternate Methodology for Measuring Loss Tangent of PCB Laminates
In a limited-scope laminate study, SUN Microsystems has looked at the dielectric loss tangent of a few materials. It became apparent that no one method that we looked at could accurately measure Df alone over a sufficiently wide band of frequencies due to various limitations of the associated method.
HDI is Coming--Are You Ready?
HDI design technologist Dan Smith, sometimes known as the "New Mr. HDI," is creating an HDI design certification for IPC. He and Andy Shaughnessy discuss his Designers Day class and the need for HDI design education, as well as his quest to build upon the works of HDI authors Happy Holden and Charles Pfeil.
It's Only Common Sense: Selling APEX
It never fails. At every trade show, you see exhibitors with booths manned by staffers who are busy reading newspapers, eating, or having deep conversations, while potential customers walk right by. There's an entire cottage industry devoted to studying the behavior of trade show attendees, and for good reason - a lot of companies don't know how to market themselves effectively at trade shows.
Physics-Based Via and Trace Models for SI/PI Co-Analysis
Physics-based models for vias and traces are applied to simulate multilayer interconnects on PCBs. In this DesignCon 2010 paper, a variety of interconnect structures are studied with model-to-hardware correlation. These models also enable efficient signal integrity and power integrity co-analysis with focus on modeling simultaneous switching noise coupled into high-speed signal nets as well as understanding the effects of decoupling capacitor placement.
Documentation Becoming More Important to Managers
DownStream Technologies exhibited at DesignCon for the first time. Founder Rick Almeida explains why, and he offers insights into how PCB documentation is becoming a greater concern for engineering managers-especially as designers and EEs spend more time doing documentation than designing PCBs.
Frequency-Dependent Material Properties
At DesignCon, I presented a paper on causal models for materials. Whenever you go from a frequency domain into the time domain, you have to worry about causality. If you care about high-speed serial links and use FR-4-like materials, you should care about frequency-dependent material properties.
Michael Steinberger on SiSoft's Model Strategy
The IBIS Algorithmic Modeling Interface has simplified the task of serial link simulations by - among other things - allowing models from different chip makers to work together. Dr. Michael Steinberger of SiSoft talks with Guest Editor Kelly Dack about SiSoft's work developing and fine-tuning the IBIS/AMI standard.
Maxed Out: Of Technology, Cells and Genes
In which we learn - amongst many other things - how the iPad fares in comparison to the Kindle, how much our genetic makeup can change in one generation, and whether Christopher Columbus did, in fact, discover America. Read on!
Telling the Whole Story With Sunstone
Good communication between design and fab is critical to your board's success. Sunstone product manager Nolan Johnson and Kelly Dack discuss what designers and fabricators must do to streamline communication in order to yield profitability.
HyperLynx Wins DesignVision Award
Mentor Graphics was a finalist in the DesignVision Awards at DesignCon 2009. But this year, Mentor's HyperLynx PI power integrity tool took home the gold in the System Modeling and Simulation Tool category. Steve Kaufer, director of engineering for HyperLynx products, has more on Mentor's big win.
A Tale of Two Properties
High-speed, high-frequency designs make your materials choice more important than ever. DuPont engineer Glenn Oliver explains how a new Kapton/Teflon composite can benefit those with challenging high-speed dielectric requirements.
Analyzing and Designing Vias for Multi-Gig Interconnects
Vias are a necessary evil in PCBs. They enable transitions for signals between layers. But if not designed correctly, vias can also be the weakest reliability link and the weakest signal integrity link. In this app note, Dr. Yuriy Shlepnev, the Electromagnetics Guru, walks us through a new way of thinking about the electrical performance of vias.
SERDES Modeling Using the AMI Standard
It has been difficult to simulate serial links if the driver and receiver are supplied by different vendors. But the Algorithmic Modeling Interface can solve this problem. This paper shows the use of AMI in modeling the behavior of the data path and adaptive control loops.
Six Questions: David Bergman Discusses China and IPC
PCB Design007 recently expanded into China with a Mandarin edition -- PCB Design007 China. We asked IPC Vice President of International Relations David Bergman a few questions about China, its electronics industry and the role of IPC China.
The European Design Market: Time to Optimize
Dirk Muller is president of the European Cadence rep FlowCAD. During Productronica, Dirk sat down with European Editor Stuart Hayton to discuss Europe's PCB design tool market.
Zuken Signs 3DVision as E3 WireWorks Distributor
Zuken has signed the first U.S. distributor for the new E3.WireWorks product family that integrates with the SolidWorks 3-D CAD environment. 3DVision Technologies, headquartered in Cincinnati, Ohio, was selected for its years of experience working with SolidWorks.
Microvia Reliability Takes Center Stage
With the move to HDI, more and more microvia failures are rearing their ugly heads. Paul Reid of PWB Interconnect Solutions discusses some of the root causes for microvia failures and identifies some solutions.
Maxed Out: Next-Generation Displays (Part 1)
For decades, CRT-based computer monitors were the only game in town. But things don't stay the same forever; new display technologies are emerging all the time, and there are some mega-exciting possibilities for the future, including carbon nanotubes.
New Solder Attach Method Challenges BGA Paradigm
First-time SMTAI paper presenter Adam Stanczak, Global Technolology Manager for Molex, explains how a new solder attach method can help designers move away from traditional BGAs. His paper, aimed largely at PCB designers, explains design hardships and technology verifications for PCB assemblies.
Don DeGroot Discusses Test Methods Group Breakthrough
Don DeGroot, president of CCNi, is chairman of the High-Speed/High-Frequency Test Methods Subcommittee. Don explains how his subcommittee's work supports PCB designers and manufacturers, and the group's recent breakthrough: A test method that may appeal to everyone, from materials suppliers to OEMs.
Engineers Are People Too
Conventional wisdom tells us that engineers are serious, introspective people - nothing like their co-workers in marketing and sales. But as Indium's Rick Short explains, today's engineers have Twitter and Facebook pages, and they'd rather see a multimedia presentation than read a dry data sheet. Anyone working with - or marketing to - engineers should keep in mind that engineers are people too.
Maxed Out: Seeing Sounds and Tasting Colors
Do your eyes associate words or letters with certain colors? If you have a particular kind of synaeshtesia, the answer is yes. And if you're a synaeshtetic electrical engineer, you may perceive different colors when looking at a black-and-white gate-level schematic. How can this be, you ask? Let's dive in and see!
Chapter 1: Timing Analysis and Simulation for SI Engineers
IBM signal integrity engineer Greg Edlund recently authored "Timing Analysis and Simulation for Signal Integrity Engineers." This technical book was published by Prentice Hall as part of its Signal Integrity Library. Prentice Hall was kind enough to let us publish the first chapter.
Circuit Express Sets Bar High With Low Volumes
In these uncertain times, Circuit Express has found the recipe for steady growth: A direct sales force and a sharp focus on quickturns, prototypes and low-volume PCB manufacturing, particularly in the mil/aero segment.
The Future of Multiclock Systems
The clock requirements of high-performance systems vary from the chip to the circuit to the system level, but in every case the ideal is a fully synchronous system. This paper, written by Ransom Stephens of Ransom Notes and Jorge Gomez and Roman Boroditsky of NEL Frequency Controls and presented at DesignCon, introduces a new approach to synchronized clock architecture.
Multi-GB/s Serial Channel Design
As standards push data rates of serial channels into the multi-GB range, an opportunity arises to tune system design procedures to achieve the accuracy demanded by the specs and the success required by timelines. This paper describes how a channel design platform can aid in guiding a project from conception to physical verification.
Isola Solidifies Move into RF, High-Speed Materials
A year ago, Isola introduced a family of laminates for RF/microwave applications. I-Connect007's Ray Rasmussen, Steve Gold and Pete Starkey recently spoke with Isola's David Barrell about the IS680 material system and its benefits for PCB designers and fabricators.
Teaming Up on Design and Test
No longer isolated disciplines, design and test often work together now. The tools themselves are adapting, with graphical design environments intended for test now aiding the design process, and design, modeling and simulation tools enabling such techniques as hardware-in-the-loop testing.
The Universal PCB Design Grid System
The American electronics industry's refusal to use the metric system is hurting us in global markets. The Universal PCB Design Grid System provides a framework for American PCB designers who wish to embrace metrication.
EMI Shielding of Cable Assemblies
Numerous standards document performance requirements for high-speed cable assemblies. However, while signal integrity parameters, such as characteristic impedance, crosstalk, propagation delay and skew are addressed, EMI shielding performance is rarely specified. This paper, written by Dana J. Bergey and Nathan E. Altland of FCI and presented at DesignCon, reports on studies conducted to determine the variability of shielding performance that can be found in commercially available cable assemblies.
Design for Flip Chip and CSP Technology
This paper, written by Vern Solberg of Solberg Technology Consulting and presented at IPC APEX Expo 2009, compares different common technologies including flip-chip, chip-size and wafer level array package methodologies detailed in the new IPC-7094 publication. It considers the effect of bare die or die-size components in an uncased or minimally cased format and reviews PCB design guidelines to ensure efficient assembly processing.
Cable EMI Characterization Using a Reverberation Chamber
The design of data cables to be used in high-performance applications presents a number of challenges. Previous work by these authors has shown the potential impact of differential delay skew in the generation of common-mode noise and EMI. This paper, written by IBM's Joseph C. (Jay) Diepenbrock and Dr. Bruce Archambeault and presented at DesignCon 2008, examines methods for measuring the shielding effectiveness of cables and discusses considerations involved in building and characterizing a reverberation chamber.
New Buds on the PCB Documentation Tree
IPC's Director of Technology Transfer Dieter Bergman looks forward to fresh growth on an already well-established PCB specification, as IPC-2615 prepares to fold into the IPC-2610 documentation family. Dieter spoke with Guest Editor Kelly Dack at IPC APEX EXPO in Las Vegas.
Solutions for Causal Modeling and A Technique for Measuring Causal Broadband Dielectric Properties
This paper, written by Chad Morgan of Tyco Electronics and presented at DesignCon, addresses specific dielectric and conductor material relationships necessary to produce consistently causal and accurate electrical component models. Final model data is provided to verify the accuracy and causality of the measurement method.
Video: Ask For The Order!
If you're a rep, you have to create your own success. With over 10 years of experience selling PCBs, Marissa Oskarsen, CEO of manufacturer's rep E-Tec Sales, says solid PCB partners, lots of self-motivation and asking for the order makes her rep business successful.
Video: How to Compete During a Recession
What do you do in the middle of a recession when you're competing against much larger corporations? How do you change the purchasing habits of contract manufacturers used to doing things the way they always have? CheckSum President John VanNewkirk offers some insights.
Modeling Issues and Possible Solutions in the Design of High-Speed Systems With Signals at 20 Gb/s
In high-speed digital systems with signals at 20 Gb/s, standard approaches used to study signal integrity at PCB and package level are not valid anymore. IBIS models are no longer accurate and H-Spice transient simulations face convergence and stability problems. How to address these problems? This paper, written by Antonio Ciccomancini Scogna of CST of America and Jianmin Zhang, Kelvin Qiu, and Qinghua Bill Chen of Cisco Systems, provides answers by considering a few test cases as well as more complex multilayer PCBs.
PCB Via Analysis With Foldy Lax Equations
Authors Xiaoxiong Gu and Mark B. Ritter of IBM's T. J. Watson Research Center applied Foldy-Lax multiple scattering equations to analyze signal and ground vias in a multilayer PCB. The Foldy-Lax method solves multiple via couplings between two power/ground planes, and takes into account physical dimensions of via structures. Good model-to-hardware correlation is demonstrated up to 40GHz in this paper, presented at DesignCon.
The Impact of Split Planes on Signal and Power Integrity
Trends in increased functionality and decreased form factor lead to splits in the power (and/or ground) planes. This DesignCon 2009 paper, written by Jason R. Miller, Gustavo J. Blando, Roger Dame, Barry A. Williams and Istvan Novak of Sun Microsystems, examines the impact of traces crossing splits and slots on signal integrity and power integrity using both measurements and simulations.
Some Common Sense Design Principles
After managing PCB designers for 20 years, I'd like to offer a few common sense design tips: Attack the most critical routes first, quit holding "beauty contests" for your designs, and realize that when they're done, they're done. By Gary Griffin, president of BTI.
Counterfeit Forum Highlights the Fight Against Fakes
Counterfeit electronics is a trillion-dollar business that affects OEMs and EMS companies around the world. IPC presented a forum on counterfeit electronics during APEX, featuring speakers who are involved in the clash with the counterfeiters: Jim Williams of Polyonics, Brad Botwin of the Office of Technology Evaluation, Gene Panger of TUV Rheinland and Dennis Fritz of SAIC.
Video: The Dovetailing of Engineering and Design
As board speeds increase, PCB designers are learning more and more engineering skills. But, as Rick Hartley explains, some PCB design engineers are also being forced to become more proficient at PCB design.
Video: Joel Peiffer on EP's Long Trip to Mainstream
Embedded passive materials have been available commercially for over a decade. Why has it taken so long for them to gain mainstream acceptance? How do you convince designers to spec them in? 3M Electronic Solutions Advanced Engineering Specialist Joel Peiffer weighs in on these questions.
SSO Noise, Eye Margin and Jitter Characterization
This paper, which won a Best Paper award at DesignCon 2009, describes the power integrity design and characterization for a single-ended I/O interface through noise, eye margin and jitter measurements. Authors are Vishram S. Pandit, Ashish N. Pardiwala, Hsiao-ching Chuang, Myoung Joon Choi and Md. Ruhul Quddus of Intel Corporation.
The Del Mar Electronics Show Wrapup
Attendance was up year-on-year at last week's Del Mar Electronics Show. What is it about this small show in San Diego that draws PCB manufacturers from all over the country?
Video: Dieter Bergman on The New 2610 Series
IPC Director of Technology Transfer Dieter Bergman sat down with Guest Editor Kelly Dack at Designers Day in Las Vegas to discuss the the development of IPC-2610, an electronic documentation family that updates the IPC-D-325 series. The 2610 series is much more comprehensive.
APEX EXPO 2009 Video Showcase
Since New Year's Day, we've traveled around the globe covering electronics design and manufacturing for you. From Silicon Valley to Las Vegas to Shanghai, our Real Time staff hasn't missed a beat. At IPC APEX EXPO 2009 alone, we shot 140 videos of interviews and events. Here, Gary Griffin, president of Board Technology Innovations, discusses the need for common sense in PCB design and engineering. And Vern Solberg of Solberg Technical Consulting discusses his committee's efforts on the new IPC-7093 specification, a document that will define board assembly design features for bottom termination components.
New Serial Link Process, 6 Gbps SAS Study
Over the past decade, PCB signaling has made a steady migration to high-speed serial links. This case study, presented at DesignCon 2009, details a pre-hardware serial link simulation process developed for 6+ Gbps link designs. Techniques for specification compliance testing are illustrated, some of which previously could only be performed with physical hardware. This paper was written by independent signal integrity consultant Donald Telian, Paul Larson and Ravinder Ajmani of Hitachi GST, and Kent Dramstad and Adge Hawes of IBM.
The Successful Design of High-Speed Serial Backplanes
Designers accustomed to creating serial backplanes operating at or above 1 Gb/s face a host of challenges and obstacles that at lower frequencies can be ignored.
APEX EXPO 2009 Video Showcase
If you missed IPC APEX EXPO, don't worry. We interviewed the top PCB designers, engineers and manufacturers, and we'll be bringing these interviews to you in the upcoming weeks. PCB007 Editor Steve Gold chats with Advanced Circuits CEO John Yacoub about his company's plan to "weather the storm" while continuing to invest in new equipment. And Guest Editor Eric Bogatin interviews Rich Mellitz, principal engineer with the Enterprise Server and Platform Division of Intel, and Don DeGroot, president of CCN-I. They discuss the new loss and high-speed test standards introduced at IPC APEX.
Designers Day Video Showcase
At Designers Day in Las Vegas, we interviewed some of the top names in PCB design and design engineering. Lee Ritchey sits down with Guest Editor Kelly Dack to discuss the tradeoffs associated with layer count. And Sunstone Circuits CAD Marketing Manager Nolan Johnson discusses his company's drive for DFP (Design For Profitability) with Kelly and Andy Shaughnessy.
AWR, James Cook U. Team Up For RF/Microwave Design Course
A comprehensive RF and microwave electronic engineering course developed by Associate Professor Keith Kikkert of the James Cook University School of Engineering & Physical Sciences is now available free of charge to universities worldwide.
DesignCon 2009 Video Showcase
In this week's DesignCon Video Showcase, Package Science Services' Thomas Tarter explains his plans to form a non-profit organization that makes software available for unemployed electrical engineers. And Agilent EESofEDA's Colin Warwick discusses his popular Signal Integrity Tips blog, and electrical engineers' need for information at their fingertips.
EMI From SerDes Differential Pairs
Comprehensive EMI layout rules for routing high-speed SerDes differential pairs are quasi-nonexistent. As a result, there is a need to create a new set of layout rules to better control the EMI of interfaces running at GHz frequencies. This paper, authored by Cisco's Philippe Sochoux, Morris Hsu, Alpesh U. Bhobe and Jinghan Yu and presented at DesignCon 2009, investigates the EMI caused by various layout imperfections.
DesignCon 2009 Video Showcase
At DesignCon 2009, we were fortunate enough to speak with some of the top movers and shakers in PCB design engineering. In this week's DesignCon Video Showcase, Brad Griffin, product marketing manager for Cadence's Allegro line, discusses the high-speed issues affecting PCB and IC designers, and the difficulty PCB design teams face in scheduling time for signal integrity analysis. And Sonnet Applications Specialist Robert O'Rourke and Guest Editor Dr. Eric Bogatin dig deeper into the mysteries of electromagnetic simulation, ground bounce and crosstalk.
Thou Shalt Document!
Have you ever wondered how to get involved in IPC standards development? If so, I'm going to give you an opportunity to participate right here, right now! The IPC is currently in the process of updating IPC-D-325 Documentation Requirements into the new IPC-2610 series. Join me in a little experiment!
DesignCon 2009 Video Showcase
At DesignCon 2009, we were fortunate enough to speak with some of the top movers and shakers in PCB design engineering. In this week's DesignCon Video Showcase, Mentor Graphics' David Kohlmeier reviews the current development of high-speed PCB design tools, and what EDA companies are doing to differentiate themselves. And Fidus Systems' Syed Bokhari and Donald Moncion explain how they move SI analysis up early in the design process, and why their motto is "We get it right the first time."
Altium Challenges Engineers to Change the Way Design is Done
Altium will ask electronics designers to leave all preconceptions at the door at this year's Embedded World conference, held in Nuremberg, Germany, March 3-5, 2009.
DesignCon 2009 Video Showcase
At DesignCon 2009, we were fortunate enough to speak with some of the top movers and shakers in PCB design engineering. In this week's DesignCon Video Showcase, Guest Editor Eric Bogatin and Cosmin Iorga of Noisecoupling.com discuss various methods for managing, simulating and suppressing noise coupling at the IC, PCB and system level. And Publisher Steve Gold chats with IBM's Bruce Archambeault about the effects of the slowing economy on R&D and engineering: You guessed it - even more pressure to get it right the first time.
Improving DFM by Resolving Component Polarity Problems
Jack's back, and he's written a primer for circuit board designers and anyone affected by the work designers produce. Circuit board designer Jack Olson of Caterpillar describes the process for translating component placement information from the CAD software to the component pick-and-place machine and to suggest ways in which the process might be improved.
Thermal Challenges in 3D IC Integration
Stacking chips brings performance and design advantages, but also heat challenges. Stacking saves real estate while improving other processes, but the increased density also causes increased heat.
DesignCon 2009 Video Showcase
At DesignCon 2009, we interviewed some of the top engineering minds in the industry. In this edition of the DesignCon Video Showcase, Apache Design Solutions CEO Andrew Yang details his company's movement from SoC into the PCB and packaging engineering tools space, as well as his vision for developing the best analysis tools. And Valor Computerized Systems EDA Library Products Manager Tom Hausherr (founder of PCB Matrix, recently acquired by Valor) talks with Guest Editor Kelly Dack about BGA routing strategies, including the ultimate via solution for fanning out a 1 mm pitch BGA. Tom also discusses the DesignVision Award that PCB Matrix won for its Symbol Wizard tool at DesignCon.
Impact of PCB Laminate Parameters on Suppressing Modal Resonances
Power planes are capacitive at low frequencies, and develop resonances according to their cavity dimensions. By reducing the plane thickness, the downward impedance slope is pushed to lower values and at the same time the modal resonances get gradually suppressed. The Q of these resonances is related to the effective loss of the composite material of dielectric and metallization. This paper, written by Sun's Istvan Novak, Jason R. Miller, Gustavo Blando and Barry Williams and presented at DesignCon 2008, shows how the total area, aspect ratio and laminate thickness impact the high-frequency impedance profile.
Noise Injection for Analysis and Debugging
Troubleshooting PCB and system designs, especially for intermittent errors, can be time-consuming, and predicting field problems can be even more difficult. In a paper presented at DesignCon 2009, Doug Smith describes a method for detecting such problems: Inductively injecting controlled voltage pulses into an individual PCB path or a system component.
DesignCon 2009 Video Showcase
At DesignCon 2009, I interviewed some of the top engineering minds in the industry. In this edition of the DesignCon Video Showcase, Bruce Archambeault, an EMC instructor and distinguished engineer with IBM, discusses why - when it comes to splitting planes - you should never say never, and never say always. And Todd Westerhoff, VP of software products for SiSoft, explains how his company has managed to win several DesignVision Awards at DesignCon, and why some EDA tool vendors don't seem to use their own tools.
Multi-Level Signaling in High-Density, High-Speed Electrical Links
This paper, presented at DesignCon 2008, provides an analysis comparing multi-level signaling to standard NRZ signaling for module-to-module on-board electrical interconnects. To study on-board electrical performance, duo-binary and PAM4 I/O models were created and compared to NRZ signaling in behavioral link-level simulations. Simulation results show that NRZ signaling with FFE and DFE equalization offers the best electrical performance.
Performance Limitations of Backplane Links at 6 Gbps and Above
As data rates exceed 6 gigabits per second, the size of physical structures within backplane interconnects becomes significant. This paper, authored by Jason Chan, Brian Kirk and Jose Paniagua of Amphenol TCS and presented at DesignCon 2008, focuses on major performance limitations seen across numerous backplane designs and proposes methods to improve their performance.
Aggregation of Crosstalk in Backplanes
As serial data rate increases in backplane interconnect, dielectric and skin loss, reflections due to vias and connectors and crosstalk become major obstacles. This paper, authored by Atul K. Gupta of InspireSys Corporation and Henry Wong of Gennum Corporation, and presented at DesignCon 2008, provides insight into the crosstalk utilizing time domain analysis.
The Convergence of RF and PCB Design
The worlds of PCB and RF design have converged, and there is no turning back. But despite a few inroads here and there, this convergence has occurred largely without the two worlds really figuring out how to work together. Mike Heimlich of AWR Corporation explains why the two sides are being forced to cooperate.
DfR Mistakes Made by System Designers
System designers are constantly expected to do more with less. In this rush to meet customer requirements, common and costly hardware design mistakes are often made. In this presentation with voiceover from the EKTN "Bending the Design Rules" conference, CEO Craig Hillman of DfR Solutions presents case studies of some common design mistakes, as well as a checklist to avoid these mistakes.
Heat Dissipation in Design: Current and Future Challenges
Dissipation of heat is a major packaging task. This voiceover presentation by Dr. Thomas Ahrens of the Fraunhofer Institute explains how to tailor components, modules and PCB elements for heat buffering, spreading, transfer and conduction. This presentation was given at EKTN's "Bending the Design Rules" conference in the UK.
The Shaughnessy Report: The Year in Review
The economy slowed, but technological innovation didn't. In 2008 we saw a plethora of new PCB design and design engineering tools enter the market, and plenty of great ideas as well. Take a look back at a year full of surprises.
Crosstalk Measurement, Extraction and Validation in 10 Gbps Serial Systems
Because crosstalk jitter is uncorrelated from the link data pattern, it is hard to remove through equalization techniques. This paper provides a process for extracting accurate coupled models from connectors. Authored by Dave Dunham of Molex, Gourgen Oganessyan of Quellan, and Pravin Patel, Rubina Ahmed and Moises Cases of IBM, it was presented at DesignCon 2008.
Gene Weiner's HKPCA Presentation: 50 Years of Fab
IPC Hall of Fame recipient Gene Weiner was invited by HKPCA to present a retrospective of the past 50 years in PCB manufacturing. Watch this entertaining and informative HKPCA presentation in its entirety.
Challenges and Solutions for Removing Fixture Effects in Multi-Port Measurements
As data rates continue to rise in digital networks, removing fixture effects becomes increasingly important. This paper, written by Robert Schaefer of Agilent and presented at DesignCon 2008, discusses several calibration and measurement techniques needed for removing fixture effects, using a backplane as the DUT.
The Shaughnessy Report: Craig Hillman on Avoiding PCB Design Failures
Today, designing a reliable PCB is tougher than ever. But Dr. Craig Hillman, CEO of DfR Solutions, is taking designing for reliability to a new level. Craig discusses common PCB design failures and ways to avoid them, as well as the physics of failure.
A Design of Experiments for Gigabit Serial Backplane Channels
Today's backplane environment presents challenges for high-speed digital designers. This paper discusses an in-depth design of experiments using combinations of three high-speed connectors, three dielectric materials and three channel lengths. Written by Mike Resso of Agilent Technologies, Jack Carrel of Xilinx and Bill Dempsey of Redwire Enterprises, this paper was presented at DesignCon 2009.
High-Speed Serial Interconnect Imbalance
Many signal integrity experts and standards organizations focus on skew to improve signaling margins and reduce electromagnetic emissions in differential signaling applications. While skew analysis is an accepted metric of imbalance, it is also an incomplete one. This DesignCon technical paper, written by senior engineers Shafiq Rahman and Barry Olawsky of Hewlett-Packard, presents more comprehensive methods of characterizing interconnect imbalance.
Asia Seeks Improved Yields, Not Just Increased Capacity
For years, increasing capacity has been the modus operandi in China and other low-cost Asian nations. According to Orbotech Asia Pacific President Richard Klapholz, the days of unfettered capacity expansion are over. Now fabricators and assemblers are looking for ways to bolster the bottom line with improved yields as they grapple with a brave new world of shrinking profit margins and increased raw materials costs.
Data Mining 12-Port S-Parameters
The 12-port differential S-parameters contain the behavior of up to three independent differential channels in a high-speed serial interconnect. When including magnitude and phase information, single-ended and differential forms, and the frequency and time domain descriptions, more than 400 different elements must be taken into account. This paper was written by Eric Bogatin of Bogatin Enterprises and Mike Resso of Agilent and presented at DesignCon 2009.
Loaded Parallel Stub Common-Mode Filter
EMI radiation problems are usually due to certain unwanted common-mode signals. This paper presents a novel structure, applicable to PCBs or backplanes, that can be used to filter selected frequencies of the common mode present on high-speed differential signals. This paper was authored by Predrag Acimovic, a technical advisor in PMC-Sierra's Mixed-Signal Design Group, and presented at DesignCon 2008.
Gene Weiner on 'Navigating the Solar Maze'
PCB fabricatiors and assemblers, and their respective suppliers, are investigating opportunities in the solar market. Quantum Solar Group Founding Partner Gene Weiner, an IPC Hall of Fame recipient, discusses some early findings in his group's upcoming solar study entitled "Navigating the Solar Maze."
Heat Sink Design Flow for EMC
Current EMC design for heat sinks is reactive rather than proactive, with the EMC team only becoming involved when there is a resonance problem in testing. This paper, presented at DesignCon 2008, develop a methodology including pre-design guidelines, post-design simulation and correlation with lab measurements.
Mode Conversion and EMI Performance of Shielded Cable Assemblies for 10 Gbps Data Transmission
Differential crosstalk in high-density connectors, footprints, and packages is typically 1/3 or lower than single-ended crosstalk due to field cancellation. This paper, written by Jim Nadolny, Julian Ferry and Cesar Arroyo of Samtec and presented at DesignCon 2008, looks at measured results showing the reduction in emissions due to differential signaling in shielded cable assemblies.
DownStream Announces BluePrint-4-PADS
Exclusive configuration of BluePrint-PCB documentation tool for Mentor PADS layout users offered at special introductory price. BluePrint-4-PADS lets PADS Layout users automate the creation of the documentation that drives the PCB fabrication, assembly and inspection processes.
CST Announces STUDIO SUITE Version 2009
Computer Simulation Technology (CST) announced the release of Version 2009 of the electromagnetic simulation software CST STUDIO SUITE, including its flagship product CST MICROWAVE STUDIO.
Happy Holden Talks HDI for Aerospace Applications
PCB design, fabrication and assembly for HDI is often equated with consumer products like cell phones and notebook computers. But Mentor Graphics Senior Technologist and HDI Handbook Editor Happy Holden is now working on using HDI technology for aerospace and large form-factor applications.
Analysis of Crosstalk Effects in Transceivers
Crosstalk does not fit neatly into the standard definitions of jitter components, so most jitter analyzers misinterpret crosstalk. In a paper presented at DesignCon 2008, Dr. Daniel Chow of Altera explores the effects of crosstalk aggressors on a victim signal in a transceiver, with particular emphasis on jitter.
Agilent's EMPro 3D Reduces Design Time
EMPro is a new design platform for analyzing the electromagnetic (EM) effects of RF and microwave components such as high-speed IC packages, on-chip embedded passives and PCB interconnects.
Optimum Design Acquires RockSolid Design
Optimum Design Associates, a leading provider of PCB design services for the Mentor's Expedition platform, has acquired RockSolid Design, a major Cadence Allegro design bureau. The move makes Optimum one of the largest PCB design layout service providers in the country.
Designers Council Seeks High-Speed Certification Input
The IPC Designers Council Education Committee has authorized development of the High-Speed - High-Frequency Focus Module for Certification, and the DC needs your help preparing the 32-topic syllabus to be used for review.
IEEE Council on EDA Hosts Opening ICCAD Reception
The IEEE Council on Electronic Design Automation (CEDA) will host the opening reception of this year's International Conference on Computer-Aided Design (ICCAD) Sunday, November 9, 2008 at 5:30 p.m. in the Doubletree Hotel's Sierra Ballroom in San Jose, California.
Ron Lasky: Does RoHS Really Help Anybody?
Apparently RoHS does have some benefits. While most industry insiders believe RoHS has had more detrimental than positive effects, Dr. Ron Lasky of Indium discusses some of the benefits lead-free soldering has produced.
Exploration of Deterministic Jitter Distributions
Deterministic jitter is generally agreed to be peak limited, but it is less clear how rapidly its probability density function decreases near that limit, especially when jitter is due to crosstalk. This paper, written by Michael Steinberger of Sisoft, was presented at DesignCon 2008.
The New Electronics Paradigm
Printed electronics is enabling printed displays, solar cells, functional circuits, batteries, sensors and even sound devices in a form that can be flexible, stretchable, foldable and cheap enough to be disposable on promotions and packages.
EMA's TimingDesigner 9.1 Focuses on Altera's FPGA Flow
EMA Design Automation announced TimingDesigner version 9.1, adding support for the SDC timing format that allows interface with FPGA and ASIC design flows.
FUJIFILM Dimatix Picks Numerical Innovations for CAD Translations
Numerical Innovations LLC will provide FUJIFILM Dimatix with an OEM version of its ACE (Advanced CAD Exchange) Translator. ACE bi-directionally translates a wide variety formats including DXF, GDS-II, OASIS, Gerber (RS-274X/Fire9000), ODB++ and IGES.
Cadence CEO Mike Fister Resigns
Mike Fister has resigned from Cadence Design Systems, along with a number of other executives. Cadence has created an Interim Office of the Chief Executive while the search continues for a new chief executive.
The Shaughnessy Report: Designers Day - California to Focus on Technology
Jean Hebeisen and Tina Nerad of the IPC Designers Council provide an update on the first Designers Day - California, coming up on October 22 in Irvine, California. Plus, what's new at the Designers Council.
PCI Express Timing Margins
This case study takes two PCI Express interfaces through a detailed exercise of quantifying individual contributors to operating margin erosion using the metrics of jitter, S-parameters and time-domain reflectometry. This paper, written by Senior Engineer Greg Edlund of IBM, was presented at DesignCon 2008.
IPC Committee Update: High-Frequency and High-Speed
Tom Bresnan, sales manager with R&D Circuits, updates us on the efforts of the IPC's High-Speed/High-Frequency Committee. Bresnan also talks about his company's recent acquisition, along with its business model for building boards with very high aspect ratio holes.
Design Standards Committee Update With Gary Ferrari
Gary Ferrari is director of technical support for FTG and chair of two IPC design standards committees. Gary sat down with Steve Gold at IPC Midwest to discuss the work of each committee, and why their respective missions are so important.
From CAD to CAM
Circuit board designer Jack Olson spent a few days with Technical Services Engineer Mike Tucker in the CAM department of P.D. Circuits. The following is Jack's introduction to front-end engineering.
Modeling Issues and Solutions at 20 Gb/s
At 20 Gb/s, standard approaches for analyzing signal integrity at the PCB and package level are no longer valid. Presented at DesignCon 2008, this technical paper discusses electromagnetic models and offers a practical workflow and design rules for the analysis of differential signals in high-speed multilayer PCB. By Antonio Ciccomancini Scogna, CST of America, and Cisco Systems' Jianmin Zhang, Kelvin Qiu and Qinghua Bill Chen.
Sustainability Must be Relative
Arizona State Professor Brad Allenby explains why sustainability has been poorly defined, primarily in terms of "what we have to give up." He urges the industry to avoid focusing too much on sustainability, and, instead, consider the total impact of electronic products on the global community, most of which is very good.
Simultaneous Jitter Analysis in Time, Frequency and Statistical Domains, and Their Interrelationships
This paper, presented at DesignCon 2007, studies simultaneous jitter in the time, frequency and statistical domains. CTO Mike Li of Wavecrest describes theories and methodologies that should enable more accurate implementation and correlation of the latest jitter requirements and specifications.
CircuitWorks ECAD-MCAD Tutorial, Part 1
Integrating PCBs into a mechanical design often means re-modeling circuit boards from scratch, leading to possible errors and costly rework. CircuitWorks bridges the divide between electrical and mechanical, allowing the creation of accurate, fully populated models from ECAD data.
Synchronizing Mechanical and Electrical Design
Many PCB designers are faced with the challenge of designing boards that have requirements and qualifications predetermined by the end-product's mechanical engineering team. It's time to move away from rigid design software to open environments. Nolan Johnson and Lee Harding of Sunstone Circuits explain.
Constraint Entry: Helping Hands Make Light Work
Increasingly tighter design tolerances and the growth of signal integrity concerns make constraint entry more important than ever. Constraint entry collaboration may be just what designers and engineers need.
I-Connect007 Launches New Platform for Global Magazines
After almost a year of planning, designing and programming, I-Connect007 introduces its new platform for PCB007, EMS007 and PCBDesign007. This is not just a stylistic makeover, but the new site has been rebuilt from the ground up to take the I-Connect007 family of magazines and microsections into the future.
Losses Induced by Asymmetry in Differential Transmission Lines
Differential transmission lines are usually modeled and analyzed as perfectly balanced structures, but asymmetries can substantially increase the differential loss profile. This paper, written by Gustavo Blando, Jason R. Miller and Istvan Novak of Sun Microsystems and presented at DesignCon 2007, examines loss due to nonuniformities in the dielectric.
How Low Can We Go?
Some PCB designers attribute the cost of production to factors in the manufacturing process, believing they are exempt from the cost-reduction process. However, according to Happy Holden, designers have the capability to reduce the cost of circuit boards in a number of ways. Olivia Leigh has the story.
It's Only Common Sense: The IT Guy--Your Secret Weapon
Do you want to see your business take off? Dan Beaulieu gives you the secret to success--put a new guy or gal in the IT position at your company. Young people today were born using computers and can do things the typical IT person says are impossible. A new IT person will take your company's marketing effort into the 21st century.
Differential PCB Structures Using Measured TRL Calibration and Simulated Structure
A combined through-reflect-line (TRL) calibration and de-embedding procedure based on measured and computed data can be used to extract accurate S-parameters of differential structures in multilayer PCBs. This technical paper was written by Heidi Barnes, Verigy Inc.; Dr. Antonio Ciccomancini, CST of America; Mike Resso, Agilent Technologies; and Ming Tsai, Xilinx.
The Shaughnessy Report: Rick Hartley of L-3 Avionics Systems
Rick Hartley has been a PCB design instructor for quite a while, but he recently taught his first workshop in Brazil. The language may have been different, but Rick found that the attendees faced the same high-speed hurdles as their stateside brethren.
EMI Emissions from Mismatches in High-Speed Differential Signal Traces
Differential signalling allows better data quality and signal integrity at the receive end of the traces and/or cables, but some significant EMC and signal integrity issues are not readily apparent. This technical paper by IBM's Bruce Archambeault, Joseph C. (Jay) Diepenbrock and Samuel Connor demonstrates that a significant amount of common-mode current can be created when the two legs of the differential signal are skewed in time, or if the rise/fall times differ.
Comparing Time Domain and Frequency Domain Techniques for Investigation on Charge Delivery and Power-Bus Noise for High-Speed Printed Circuit Boards
Signal integrity engineers and EMC engineers look at the decoupling capacitor in different ways. This award-winning paper presented at DesignCon 2007 looks at decoupling from a time-domain and frequency-domain viewpoint.
Jerry Pariag joins the Milplex Team
Milpex Circuit (Canada), Inc. has named printed circuit board veteran Jerry Pariag as National Inside Sales Manager.
John Andresakis Talks Printed Electronics
John Andresakis, VP of Strategic Technology at Oak-Mitsui, discusses the developments in printed electronics. This emerging technology will soon reach the mainstream markets with high volume RFID tags to simple circuits.
RFID Tags Designed For Screen Printing
RFID technology is growing faster than ever, but cost is a constant factor. This paper, presented at APEX 2008 in Las Vegas, describes the design of a flexible RFID tag manufactured by a low-cost screen-printing technique.
The Slowdown Showdown
Niche industries have proven the ticket for the electronics industry. Mike Berman has details.
Silicon is Only The Beginning
Choosing the right package for your design yields tangible benefits.
High-Speed Interconnections: Get Ready for 40G
With data rates headed for 40 Gbps understanding high-speed interconnection design will be vital to success. Fortunately there are experts ready to help. Joe Fjelstad reports.
EDA Industry Posts Slight Decrease in Revenue in 1Q 2008
The EDA Consortium (EDAC) Market Statistics Service (MSS) announced that the electronic design automation (EDA) industry revenue for Q1 2008 declined 1.2 percent to $1350.7 million compared to $1366.8 million in Q1 2007.
Video Interview: Brandon Gore and Richard Mellitz
Intel signal integrity engineers Brandon Gore and Richard Mellitz won the award for best domestic paper at Apex.
AT&S Cooperates with Solland Solar
The main target of this cooperation is to design an innovative solar module that increases energy efficiency while reducing costs.
Column: Alternative Number Systems, by Max Maxfield
Why does society primarily use a base-10 number system? Why not a base-12 system, or one that utilizes a prime number?
China Week in Review
Apple's New Products to Benefit Hon Hai, Quanta, and Asus; TPT Buys Stake in Yangan;Becomes Largest Optoelectronic Board Maker; Gia Tzoong and Everlight Broke Up
MEPTEC Illuminates MEMS Glowing Perspectives
The sixth annual MEPTEC MEMS Symposium took place May 22, 2008 and gathered together industry participants, suppliers and customers for learning and networking. It is now the world MEMS event of the year as the scope of applications grows.
Can Competitors Cooperate?
Does volunteer work within associations and consortia really pay off? An interview with Flextronics Lead Engineer Jasbir Bath reveals the value of volunteering on both a professional and personal level. Even the fiercest rivals might benefit from a little cooperation...
Brazil - The Next Center for Technology?
In spite of the language differences, there was an ongoing and lively exchange between instructor and his audience as they peppered Hartley with questions that gave ample evidence that these engineers were definitely interested in pushing out the edges of the technological envelope in South America.
When Size is Everything: Reeeeally Big Flex Circuits
This past year I had the great privilege of working with the good folks down at the Jet Propulsion Laboratory as part of a team working on the flex circuits going into the Mars Science Laboratory, the biggest, most complex Mars rover ever.
The days of using workarounds to design PCBs with embedded passives are coming to an end. But despite numerous advances, embedded passives design tools continue to present challenges. IPC Contributing Editor Matt Wood explains.
New Low Dk/Df Materials for High Speed PCBs
With the growth in mobile communication devices, PCB fabricators have been looking for more affordable and easily processable low Dk/Df material.
Video: Walt Custer's APEX Keynote
Is the worst over? Industry analyst and IPC Hall of Famer Walt Custer gives his analysis and forecast of industry market conditions.
Cadence Proposes to Acquire Mentor Graphics
Cadence Design Systems, Inc., announced that it submitted a proposal to the Board of Directors of Mentor Graphics Corporation to acquire Mentor Graphics for $16.00 per share in cash.
Video Interview: Jim McElroy of INEMI on the Advanced Packaging Consortium
Jim McElroy of INEMI discusses the group's efforts with the Advanced Packaging Consortium.
Understanding EuP and REACH
EuP and REACH may be EU legislative acts, but they can have far-reaching effects on companies that market products in Europe.
Video Interview: Rick Hartley Talks With Global Laminates' Bruce Hurley
Guest Editor Rick Hartley talks copper-clad substrates with Bruce Hurley of Global Laminates.
Audio Interview: Krista Botsford on Environmental Regs
Krista Botsford of EcoTech Partners discusses environmental regulations that plague the electronics industry, and a few that are necessary.
Carve Your Niche With Customer Service
Innovative companies can exploit their overseas competitors' weakness in customer service by investing in the type of customer service program needed to carve out a niche and thrive.
Edge Products PLM Case Study
Implementing a new PLM system involves much more than just picking out a software product.
The Shaughnessy Report: Altium's Rob Irwin talks MCAD
The gap between electronic and mechanical CAD tools is shrinking. Rob Irwin of Altium discusses the MCAD functionality the company recently added to its Altium Designer PCB platform.
Audio Interview: Jisso Conference Wrap-Up with Denny Fritz
The 2nd Jisso International Forum is over. So, what's next for the Jisso North American Council?
Audio Interview: Dieter Bergman on the IPC Design Conference in Montreal
Dieter Bergman discusses the IPC Design Conference, to be held in Montreal June 23-28.
Jisso Conference Highlights Industry's Innovations, Challenges
Editors Joe Fjelstad and Andy Shaughnessy filed this report from the 2nd Jisso International Forum in Atlanta. Technologists from around the world gathered to discuss the latest in packaging, materials and environmental regulations, as well as how to get industry buy-in for potentially disruptive technologies.
Video Interview: Harris Communications' Andrew Palczewski on Embedded Passives
Embedded passive technology has been around for decades, but for various reasons many PCB designers and fabricators avoid utilizing it. But the technology is slowly growing in popularity.
Video Interview: Joe Zaccari of Stilwell Baker
The best companies change with the market and the industry, and the service bureau Stilwell Baker has been evolving steadily over the last five years. Stilwell Baker Vice President Joe Zaccari sat down with Marcy LaRont to discuss the award-winning company's new focus.
Video Interview: Richard Snogren Discusses Designers' Slow Adoption of Embedded Materials
Embedded materials have been around for quite some time, yet they have not met great expectations of materials makers.
The Gold Record: New Proposed California Enviromental Regulations Must Be Stopped
Will proposed regualations by the California Deptartment of Toxic Substances deal yet another unnecesary environmental blow to our industry? An interview with California Circuits Association Executive Director Richard Crowe discusses how the entire electronics supply chain can start acting on its own behalf.
The Shaughnessy Report: Canada Gets New Design Conference
O, Canada: Is it time for Canada's PCB designers to have their own conference? IPC thinks so.
IPC Offers New Design Conference
IPC announces a design conference including educational courses, technical presentations, designer certification workshops and tabletop displays that will give designers a step up on current industry trends and the knowledge necessary to succeed.
Video Interview: Jack Olson on his First Standards Committee Meetings
Jack Olson, a PCB designer with Caterpillar, attended his first standards committee meetings at IPC Printed Circuits Expo in Las Vegas. Jack explains what he gets out of the meetings as well as what he gives back to the industry.
Lead-Free Materials: The Difference Between Data Sheets and Practical Usage
Firan Technology Group technical leader Gary Ferrari, a PCB design guru, gives his thoughts on lead-free materials--including how the claims materials suppliers make aren't necessarily what PCB fabricators find when processing them.
Video: Global Market Forecasts for the PCB and EMS Industries
Listen to IPC's Director of Market Research, Sharon Starr, and industry market guru Walt Custer discuss the US and global markets. With a US recession looming, will the electronics industry decline in 2008?
Video: Looking at the Latest Developments in Printed Electronics
John Andresakis, VP of Strategic Technology, talks about the developments in printed electronics. This emerging technology will soon reach the mainstream markets with high volume RFID tags to simple flex and rigid circuits. It's only a matter of time until these "printed" circuits enter the mainstream PCB/flex circuit industries.
A Best Practices Design Audit
There are good PCB designers, and there are great designers. How can you go from good to great?
Video Interview: Dieter Bergman Talks Standards, Volunteering and Vegas
During the final hour of IPC Printed Circuit Expo, we caught up with Dieter Bergman, IPC's director of technology transfer.
Counterfeit Products Plaguing Industry
Though most people are aware of our counterfeit component problem, the issue runs much deeper than that. WKK Technical Director Lionel Fullwood issues a straightforward assessment of what could be a critical global industry epidemic.
The Greatest Show on Earth!
IPC Expo, APEX and the Designers Summit concluded last week in Las Vegas. In partnership with the IPC, I-Connect007 covered this major industry event from end-to-end.
Video Interview: Jack Fisher on Technology Roadmaps
Watch this video interview with Jack Fisher captured at the ECWC11 in Shanghai China as he discusses the the different industry roadmaps and how they guide our industry.
CrossTalk: Is Lean Manufacturing Necessary?
Lean Manufacturing discussion from Dan Beaulieu, Steve Gold and Steve Williams.
Design For Reliability: What Does DfR Really Mean?
The interest in DfR is understandable. Reliability assessment and assurance early in the design phase can reduce development time and introduce amazing leverage into eventual product cost and performance.
The Gold Record (VIDEO): A Brief Consultation
A conversation with venerable consultant Dan Feinberg looks at how a successful executive fails miserably at retirement.
The Shaughnessy Report: Conference Highlights Lead-Free Issues
Lead-free processing took some manufacturers by surprise. But now it's time to work out the details.
Video Interview: Jean Hebeisen, Director of the Designers Council
IPC's Jean Hebeisen, director of the Designers Council, explains what's in store for PCB designers at Printed Circuits Expo in Las Vegas.
Slate for IPC Board Member Elections Announced
Nominated for Chairman: Nilesh Naik, CEO, OneSource Group, Dallas Texas. A Board member since 2001, Naik has been involved in the electronic manufacturing services industry for the past 19 years.
IPC's Denny McGuirk on This Year's Expo, Apex in Las Vegas
What will the new Las Vegas venue bring to the table? Listen to the IPC President as he lays out some of the plans for this year's show and conference.
The Myth of the Half-Million Chinese Engineer Grads
Does China really graduate a half-million engineers per year? That all depends what you mean by "engineer."
IPC's Greg Munie and Tom Newton Discuss Conference Highlights for IPC Expo, Apex
Tom and Greg discuss the process used to develop the programs for this year's Las Vegas event. The pair also discuss the conference focus as priorities shift from year to year, with this year looking at new regulations coming out of the EU and China.
LAS VEGAS: IPC's Jim Herring and Denny McGuirk Discuss the Move of Expo, Apex
Will Vegas be a boondoggle? They believe not. A very strong technical program will ensure that attendees walk away with the latest information from the industry's best minds.
VIDEO: Electronic Circuits World Convention to Convene in Shanghai
IPC's David Bergman and Tom Newton discuss what to expect at the conference, which opens March 17. Though there have been grumblings about the venue, located an hour from the CPCA Show in Pudong, the technical content should overcome this obstacle.
IPC - NA Rigid PCB Bookings Up 13.7% in January
For rigid PCBs and flexible circuits combined, industry shipments in January 2008 increased 4.0 percent from January 2007, and orders booked increased 10.9 percent from January 2007.
Video Interview: John Isaac of Mentor Graphics
John Isaac of Mentor Graphics sat down for an interview with Andy Shaughnessy during DesignCon 2008.
Video Interview: Brad Brim of Sigrity
Andy Shaughnessy interviewed Brad Brim, Sigrity's product marketing manager, during DesignCon 2008.
Sony's Revenge For Betamax
Blu-ray finally beats HD DVD in the HD format battle. It's amazing what a little industry support can do.
The Gold Record: Does ITAR Matter?
Why is ITAR important to U.S. companies dealing in military electronics assemblies and PCB manufacture? This week's video edition of The Gold Record answers this and other ITAR-related questions.
Video: An Interview with Tom Hausherr of PCB Matrix
Video Interview: PCB Libraries has changed its name to PCB Matrix. CEO Tom Hausherr explains how the new moniker reflects the firm's push into developing more software tools, particularly solutions that optimize other tools and IPC standards.
IPC Signs Agreement with Tsinghua University for Vocational Training Program
"Through the reach of Tsinghua University, we hope to spread the knowledge of IPC to 5,000 students annually; educating them on soldering and printed board assembly quality inspection and promoting standards in advanced electronics manufacturing technology."
Hunter Expands, Adds National PCB Design & Engineering Services
This expansion allows Hunter to further build on their vertically integrated EMS model thus providing customers a complete design, fabrication and assembly solution.
Collaborative Systems Can Revolutionize Industry
Open tools have made significant strides in recent years. A collaborative open tools system can break through barriers between design and manufacturing.
SI Insights: Five Rules of Thumb You Need for High-Speed Serial Link Analysis
A rule of thumb is the tool to use when an OK answer NOW! is better than a good answer late.
Copper Pillars Poised to Replace Solders
Replacing the vertical solder ball connections between chips and boards with copper pillars creates stronger connections and the ability to create more connections.
Strutting Their Stuff at DesignCon
High-speed tools and software were on display at DesignCon, as the trade show season kicks off.
Interview with Softeq CEO Michael Keer
Take a look at the unique business-education partnership between Softeq and National University (Silicon Valley) that produced a one-of-a-kind cross-functional training course.
Gerry Gaffney of Altium
Gerry Gaffney describes the Altium Innovation Station, which combines Altium Designer unified electronics design software and the Altium NanoBoard reconfigurable hardware platform.
DesignCon Interview With IBM's Dr. Bruce Archambeault
IBM Distinguished Engineer and EMC expert Dr. Bruce Archambeault talks about the failure of signal integrity and EMC tools to function correctly in the multi-gigahertz range.
Inside the SMTA Medical Electronics Symposium
While medical electronics promises to be a strong growth market, it requires answers to some critical concerns. RoHS challenges, reliability concerns, lean manufacturing and the convergent future of medical electronics were all addressed last week in Anaheim.
APEX/Expo Technical Conference Promises a Sure Bet with Major Industry Payoff
A who's who lineup of the major players in the electronic interconnect industry will descend upon Las Vegas, April 1-3, 2008, for the technical conference of the annual IPC Printed Circuits Expo, APEX and the Designers Summit.
A New Power Delivery System Design Practice
Optimizing power delivery system design has always been a time-consuming affair. But a new PDS design practice can save PCB designers time and money, with current tools.
Interview With Dr. Barry Sullivan, DesignCon Program Director
The industry's trade shows in the U.S. keep shrinking, but DesignCon bucks the trend.
DesignCon 2008 Exhibitor Preview: Oak-Mitsui Technologies
An interview with Oak-Mitsui Technologies' John Andresakis looks at the differences between DesignCon and other design events, along with what printed circuit board materials the company will be showcasing in Santa Clara next week at DesignCon 2008.
Taking Stock of Public Companies in the Electronics Manufacturing World
This edition of Crosstalk looks at both sides of the public company argument. Are they slaves to the quarterly balance sheet or can they follow a long-term strategy that marries product performance with profitability?
Design Reuse: Fact or Fiction?
Design reuse, both physical and logical, can save time and money. But some design engineers see it as an extra step in the process.
When Will That Elusive Liquid Crystal Film Polymer Market Break into the Big Time?
It's coming sooner than you might think, and, when it does, LCP films will be the universal substrate, crowding out polyimide, epoxy glass, and a few others.
RoHS Under Review: IPC Urges Commission to Aim for Science-based Regulations with Thorough Consideration of Life Cycle Impacts
"The industry is still dealing with the reliability effects of the lead free provisions of RoHS. We're urging the Commission to allow for a complete understanding of the effects of what has already been regulated, as well as new proposed regulations, before they are enacted into law."
Design For Profitability: What DFP Means for PCB Designers
The electronics world is full of buzz words like DFM. But in the end, Design For Profitability, or DFP, may be the most important consideration of all.
Differentiation by Design
UK digital TV set top box manufacturer TVonics cites pcb design as a key factor in its ability to bring innovative, reliable products to market quickly.
ITAR: Best Practices Webinar - March 5th, 2008 11:00-1:30pm PST
Best Practices webinar will benefit any defense company that seeks to ensure full compliance with U.S. federal government International Traffic in Arms Regulations requirements.
Occam Process Developer Joe Fjelstad to Keynote MEPTEC Symposium
Mr. Fjelstad will briefly trace the history of thermal management across the various stages of electronics and at different hierarchical levels, reviewing some of the innovative ways that thermal management engineers have responded to the challenges over time in his presentation.
Power Integrity in Complex PCB Designs
Designing power distribution systems early may yield positive power integrity results when designing complex PCBs.
Drive Your PCB Design Career
Take charge of your design education. Start off by getting involved with your local Designers Council chapter.
E/CIT Program Yields R&D, Training
Military and industry collaborate at the Crane naval facility. The Emerging Critical Interconnect Technology Program continues.
Valor Files for IPO in US
Valor expects to offer $50 million of its ordinary shares and selling shareholders will be offered the opportunity to include up to an additional $20 million of their ordinary shares in the offering.
Ron Cosper Named President and COO of The Millennia Group, Inc.
Brings Award-Winning Tier-One Electronic Manufacturing Services Expertise to The Millennia Group's Three Divisions
RFI: Keeping Noise Out of Your Designs
Noise from cell phones, digital oscillators, and even fluorescent lights is assailing your electronic designs. Learn what causes this noise and what you can do to increase your system's immunity to radio-frequency interference.
Mentor Graphics Announces 20th Annual PCB Technology Leadership Awards Program
Mentor Graphics Corporation today announced the call-for-entries of its 20th annual Technology Leadership Awards competition, continuing its tradition of recognizing excellence in printed circuit board (PCB) design.
From the CES Show Floor: Day One
I-Connect007 columnist Dan Feinberg meets with nVidia CEO Jen-Sun Huang on the first day of CES in Las Vegas.
Robotics Guru Rodney Brooks to Keynote IPC Expo, APEX
A technology visionary, ground-breaking scientist, creative entrepreneur, and according to Time Magazine, "a voluble Australian ... famous for finding radical, counterintuitive approaches to intractable problems," Brooks is arguably the world's most important figure in robotics.
Coretec CEO Paul Langston Discusses Strategy for 2008
Coretec CEO Paul Langston discusses what his company is doing to make sure 2008 is a success--including an increased focus on flexible circuitry, design engineering and key end markets.
IPC Intl Conference on Flexible Circuits February 12-13
Fine lined? Multilayered? Highly dense with IC packages on top? Flex offers an array of choices with a growing number of benefits.
Trilogy Circuits Receives ITAR Registration
Administered by the Office of the Defense Trade Controls Compliance (DDTC), under authority established by the Arms Export Control Act (AECA), ITAR regulates the manufacture, export, import and transfer of defense related articles and services.
IPC Issues Call for Nominations for Corporate and Individual Awards
Industry members are encouraged to highlight the special achievements of their companies and their colleagues by nominating them for one or more awards.
What if the Occam Process Actually Works?
If the right OEM is first to jump, and Joe has indicated that his discussions are with just such a company, then Occam will begin to spread to other OEMs and their suppliers.
The Gold Record: ITAR Confusion Could Prove Costly
ITT Corp. is forking over $100 million for unwittingly breaking international arms rules. Are electronics manufacturing companies at risk?
Video: Walt Custer's Outlook for 2008
The Industry's foremost prognosticator reviews 2007 and previews 2008 in this exclusive interview.
The Shaugnessy Report: Cowboys Punch Holes in WEEE Legislation
PCBDesign007 Editor Andy Shaugnessy looks at how WEEE legislation has some serious design flaws.
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