Amway Sells Beauty Products—and Designs its Own PCBs
During AltiumLive in San Diego, I met Dugan M. Karnazes, an associate electrical engineer and PCB designer at Amway. The company is famous for selling nutritional supplements and soap, but apparently Amway has been busy diversifying over the years. I was interested in finding out more about Amway’s electronics development. Dugan sat down with me to discuss his role at Amway, and how this company grew into an $8 billion global giant.
Altium Designer Increasingly Used for High-Speed Design
I recently met with Mark Forbes, the director of technical marketing at Altium, during the AltiumLive event in San Diego. We discussed Mark’s class on MCAD/ECAD collaboration and the success of AltiumLive, as well as the growth of Altium users who design high-speed PCBs with Altium Designer.
Catching up With Scott McCurdy and Freedom CAD
During PCB West, Scott McCurdy of Freedom CAD Services sat down with Technical Editor Tim Haag for an interview. We discussed Freedom CAD’s latest news, some trends in PCB design software tools, and the continuing need to draw more young people into a career in PCB design.
Rick Hartley is Bullish on PCB Design, 3D Printing
At the recent PCB West in Silicon Valley, Consulting Technical Editor Tim Haag met with long-time design industry veteran Rick Hartley to discuss the changing landscape of circuit board design, the layout designers of the future, and how designers can benefit from 3D printing of circuit boards.
Leo Lambert Discusses IPC Training Program Updates
During SMTA International, EPTAC Technical Director Leo Lambert and Managing Editor Nolan Johnson discuss a variety of recent IPC educational program updates, many of which are designed to smooth out the training process. Lambert also explains how these changes will allow EPTAC instructors to optimize the way they present IPC classes, which include the CID and CID+.
Artificial Intelligence: The Future of EDA?
Artificial intelligence (AI) has been making inroads into a variety of industries in the past decade or so, from automobiles to medical devices. Naturally, EDA tool companies are taking a look at AI. Does AI offer a way forward for PCB design tool developers? I recently interviewed Paul Musto, director of marketing for the Board Systems Division of Mentor. We discussed Mentor’s plans for integrating AI into EDA tools, and why we may be at the very beginning of understanding the pros and cons of this new technology.
AltiumLive 2018 a Mecca for PCB Designers
AltiumLive 2018 San Diego is now in the history books. This is the second annual AltiumLive (North America), and it was even better than the first. With nearly 300 hundred participants, from all parts of the country and industry, the event was a huge success.
AltiumLive to Feature Altium Designer 19 Release
This week, Altium Designer 19 will be officially launched to the public during AltiumLive, which takes place October 3-5 in San Diego. I asked Altium COO Ted Pawela to give us a preview of Altium Designer 19, and to explain how AD19 fits in with the company’s long-term plans. He also discusses Altium Live’s plan to provide PCB design content that is not vendor-specific to help support the entire industry, not just customers.
Artificial Intelligence: More Questions than Answers
I’ve been covering artificial intelligence (AI) and related technologies for years, particularly at events such as the annual Consumer Electronics Show (CES). As I write this, we are in the run-up to CES 2019, and the Artificial Intelligence Conference in San Francisco, so the AI landscape is likely to change—at an ever-accelerating rate. Let’s look at some of the challenges facing AI now, and then after CES 2019 we can take another look.
Lee Ritchey Returns to AltiumLive with 32 Gbps Design Class
Lee Ritchey was one of the instructors for last year’s inaugural AltiumLive event, which drew hundreds of PCB designers. Now, Lee is back, teaching a high-speed design class at next week’s AltiumLive in San Diego. That class is sold-out, but you can catch Lee teaching the same class at the January AltiumLive event in Germany. I asked Lee to explain what he plans to cover in this course, and why PCB designers and design engineers should consider attending one of the events.
Moving From 28 Gbps NRZ to 56 Gbps PAM-4: Is it a Free Lunch?
The usual way of signaling through PCB interconnects is a two-level pulse, an encoding of 1s and 0s or bits, named NRZ (non-return-to-zero) or PAM-2 line code type. Increasing the data rate with the NRZ code type presents some obstacles. For a 28 Gbps NRZ signal, the bit time is about 35.7 ps with the main spectral lobe below 28 GHz. For a 56 Gbps NRZ signal, the bit time is about 17. 86 ps, with the main spectral lobe below 56 GHz. One can feel the problem already: Getting PCB interconnect analysis and measurements up to 56 GHz and beyond is very challenging, to say the least.
Judy Warner: AltiumLive’s Second Year to be Even Better Than First
Last year, Altium launched its AltiumLive event with shows in San Diego and Munich, Germany. This year, the event has expanded to include an extra day of classes. Altium is gearing up for the San Diego event in early October and the German show in January 2019. I recent spoke with Judy Warner, director of community engagement for Altium, about what designers should expect at both shows, and how the company can build on the success of the 2017 events going into the future.
PCB Design Challenges: A Package Designer’s Perspective
The challenges faced by the PCB designers of today are significant. If we examine the breadth of designs, we find ever-increasing data rates and more high-speed signal routing that drive additional challenges meeting signal-quality requirements, including reflection signal loss and crosstalk issues. At the same time, designers are being asked to complete designs in shorter cycle times and in smaller form factors. They must come up with new and more complex routing strategies to better control impedance and crosstalk. Manual implementation is often time-consuming and prone to layout errors.
Managing the Challenges of Flex and Rigid-Flex Design
PCB designers working with flex or rigid-flex technology face many potential risks that can derail a project and cause costly design failures. As the name implies, flex and rigid-flex designs comprise a combination of rigid and flexible board technologies made up of multiple layers of flexible circuit substrates, attached internally and/or externally to one or more rigid boards. These combinations provide flexibility for the PCB designer working on dense designs that require a specific form factor. Rigid-flex allows the PCB design team to cost-efficiently apply greater functionality to a smaller volume of space, while providing the mechanical stability required by most applications.
Chuck Bauer Discusses the Future of Packaging
When we decided to cover the future of PCB packaging, we knew we would have to interview Charles Bauer, Ph.D., owner of TechLead Corporation. Chuck recently spoke with Happy Holden, Andy Shaughnessy and Barry Matties about current trends in packaging, the need for product designers and manufacturers to communicate, and why no matter how cool the technology is, cost is still king.
In With the New at Cadence
The next generation of PCB designers is coming—slowly, but surely. What will this new group of designers mean for EDA vendors like Cadence Design Systems? Andy Shaughnessy recently interviewed Dan Fernsebner, product marketing group director and a veteran EDA guy, and Bryan LaPointe, lead product engineer and representative of the younger generation. They discussed the next generation of PCB designers, some of the best ways to draw smart young people into this industry, and why the PCB designers of the future may need to have a college degree just to get an interview.
Help Wanted: PCB Design Layout Specialist
I was told recently that the designer, aka the PCB layout specialist, is a dying breed soon to be extinct. I wish to reassure my fellow designers that, in my opinion, you are in the catbird seat. You are in hot demand and you should have great opportunities for the remainder of your career. By the way, after reading this article, you may feel empowered to go ask for a raise. Please don’t tell your manager that I sent you!
Multi-board Design with Altium’s Ben Jordan
Not too long ago, historically speaking, most electronic products contained only one PCB. But multi-board designs have become almost ubiquitous over the past decade, and EDA software companies are working to improve and simplify the multi-board design process. Editors Andy Shaughnessy and Stephen Las Marias spoke with Ben Jordan, director of product and persona marketing for Altium, about the company’s multi-board design tools, the challenges that customers face, and the numerous trade-offs that designers must contend with while performing multi-board design.
Sensible Design: Protecting PCBs from Harsh, Challenging Environments
Think very carefully about the sort of environment your PCB is likely to encounter. It is easy to over-engineer a product so that it will survive the very worst of conditions, but worst conditions may only be fleeting or transient. Therefore, a resin solution with a lower temperature performance specification will often cope. Take temperature extremes, for example. Your application may experience occasional temperature spikes of up to 180°C, which you might feel deserves treatment with a special resin.
Paving the Way for 400Gb Ethernet and 5G
This article briefly introduces the 4-level pulse amplitude modulation (PAM-4) and its application in 400 Gigabit Ethernet (400GbE), to support the booming data traffic volume in conjunction with the deployment of 5G mobile communications. Furthermore, this article also highlights the essential pre-layout effort from signal integrity perspective for physical (PHY) link design on a PCB, including material selection, transmission line design and channel simulation to support 56Gbps data rate that paves the way for seamless communication in 400GbE.
Excerpt: The Printed Circuit Designer’s Guide to…Flex and Rigid-Flex Fundamentals
The design process is arguably the most important part of the flex circuit procurement process. The decisions made in the design process will have a lasting impact, for better or worse, throughout the manufacturing cycle. In advance of providing important details about the actual construction of the flex circuit, it is of value to provide some sort of understanding of the expected use environment for the finished product.
Making the Most of PCB Materials for 5G Microwave and mmWave Amps
Ready or not, 5G is coming, and it will require the right circuit materials for many different types of high-frequency circuits, including power amplifiers. 5G represents the latest and greatest in wireless technology, and it will be challenging to design and fabricate, starting with the circuit board materials, because it will operate across many different frequencies, such as 6 GHz and below, as well as at millimeter-wave frequencies (typically 30 GHz and above).
Mark Thompson: What Designers Need to Know about Fab
Mark Thompson wants to help PCB designers. He’s seen it all in CAM support at Prototron Circuits: the incomplete or inaccurate data packages, boards that are unnecessarily complex or over-constrained, and so much more. Mark just returned to writing his popular Design007 Magazine column, The Bare (Board) Truth, which addresses questions such as, “What happens to your design at CAM?” I asked Mark to explain why it’s so important for designers to communicate with their fabricators, and why they need to get out of the office and visit a board shop every now and then.
Design and Manufacturing Perspectives from DISH Technology’s Les Beller
I recently interviewed Les Beller, a long-time PCB designer who is now a manufacturing engineer for DISH Technology. We discussed his company’s business shift towards 5G and streaming, and the stresses that puts on a design team. He also explains the greatest challenges that he’s facing with HDI and higher frequencies, and the added importance for designers to understand the manufacturing process and DFM tools.
Geeking Out at Geek-A-Palooza MSP 2018
Kiersten Rohde, I-Connect007 editor, covers Geek-A-Palooza MSP 2018. Geek-A-Palooza "is a different kind of gathering that combines networking with a fun, relaxing atmosphere." This event provided an opportunity for local electronics geeks from every industry segment to gather for a professional social event that included great music, food, drinks, games, raffle prizes, and booths.
EDADOC: A Driving Force in China's Automotive Electronics Design
EDADOC is one of the biggest providers of PCB design and manufacturing services in China, with a long history in automotive electronics design and manufacturing. China Editor Edy Yu recently conducted an email interview with EDADOC R&D Technical Research Manager William Zhou and Brand Planning Specialist Wen Ling, who collaborated on their answers. We discussed the challenges related to designing and fabricating automotive PCBs, the opportunities in this segment, and the trends they see in the market for autonomous and electric vehicles.
Expert Discussion: Dan Feinberg on Automotive Electronics
A fixture at the Consumer Electronics Show, Dan Feinberg has been covering autonomous, hybrid and electric vehicles for years, along with the rapid growth of high-tech electronic gadgetry in traditional vehicles. In this freewheeling expert discussion, Dan spoke with Barry Matties, Patty Goldman, and Happy Holden about the future of auto electronics and what it all means to the PCB industry.
Zuken Pulling Ahead in Automotive PCB Design
Zuken has been developing PCB design tools for the automotive market for years. With automotive electronics worth over $200 billion globally, and growing every day, Zuken is preparing for a brave new world of smart cars, and autonomous and electric vehicles. I spoke with Humair Mandavia, chief strategy officer with Zuken, and asked him about the challenges facing automotive PCB designers, and the trends he’s seeing in this constantly evolving segment of the industry.
Estonia a Hot Spot for New Technology
Most Westerners know very little about Estonia. A former Soviet Bloc country, Estonia has come a long way since restoring its independence in 1991. Electronics companies are thriving in this tiny EU member country, and capital city Tallinn has been called “Silicon Valley on the Baltic Sea.” During productronica, I met with Arno Kolk, general manager of the Estonian Electronics Industries Association, and we discussed the explosion of new technology in this “Baltic Tiger” country?
Fadi Deek Discusses Mentor’s New Power Integrity eBook
At DesignCon 2018, I ran into Mentor’s Fadi Deek, the author of both of Mentor’s I-Connect007 eBooks: the newest, "The Printed Circuit Designer’s Guide to Power Integrity by Example," and their first book, "The Printed Circuit Designer’s Guide to Signal Integrity by Example." We sat down and discussed how the idea for the books came about, as well as some of the power integrity challenges facing PCB designers and engineers.
Jan Pedersen: CircuitData Enhances Current Data Formats
During the Design Forum at IPC APEX EXPO 2018, Jan Pedersen, senior technical advisor for the PCB broker Elmatica, gave a presentation on CircuitData. The language is designed to help facilitate other design data transfer formats such as Gerber, ODB++, and IPC-2581. Jan spoke with Managing Editor Andy Shaughnessy and Contributing Technical Editor Happy Holden about how this open language works with the existing data formats, as well as the need to eliminate paper documents from design process, and how the industry can help shape this open-source language.
Cadence’s Sigrity Automates Power Integrity Simulation Earlier in Design Cycle
DesignCon is always a great place to check out the latest PCB layout and simulation software tools. During DesignCon 2018, Guest Editor Kelly Dack met with Sam Chitwood, a product engineer with Cadence. Sam explained how the Cadence Sigrity simulation software now allows users to make decisions early in the design process, and how this can help optimize the design of the power delivery network and ensure signal integrity in complex PCBs.
South African Electronics Industry Going Strong
EDA Technologies is a South African company that offers PCB design engineering services, mainly for the domestic electronics market, which makes up a surprising 12.5% of South Africa’s GDP. Barry Matties recently spoke to founder Nechan Naicker about the benefits of outsourcing to South Africa, the market segments they service there, and any advice he had to offer from his 20+ years in the industry.
Worldwide Systems Consulting: Tools, Process, People
In Munich for productronica, Editor Andy Shaughnessy and Publisher Barry Matties sat down with Mentor’s Jay Gorajia, director of worldwide systems consulting. Gorajia discussed Mentor’s systems consulting business, their focus on the “digital twin,” and how their acquisition by Siemens is benefitting Mentor and their customers.
IPC-2581 Demo Draws a Crowd at IPC APEX EXPO
During IPC APEX EXPO 2018, the IPC-2581 Consortium held a demo of this open-source data transfer standard, attracting numerous designers, fabricators and assembly providers. Jim Pierce of Axiom Electronics and Bob Miklosey of Aegis Software sat down to discuss the demo and their involvement with the consortium. Axiom now charges more for designs submitted in the Gerber format.
Part 2: EIPC’s 2018 Winter Conference in Lyon, Review of Day 1
We continue with the rest of Pete Starkey’s report on Day 1 of the EIPC Winter Conference in Lyon, France. Included in this segment are presentations by Ventec, Ericsson, TTM and others, plus photos of their evening tour of Alstom.
A Conversation with Dorine Gurney, New President of Polar Instruments
Dorine Gurney has recently been named president of Polar Instruments. With a 30-year resume that includes management positions at Mentor Graphics, Lattice Semiconductor and Tektronix, she takes the reins as Ken Taylor heads into retirement. I recently caught up with Dorine at DesignCon 2018 in Santa Clara, California.
Pulsonix Ready for 2018
Pulsonix has been developing PCB design software for almost 20 years, establishing a reputation for its full-featured, low-cost design tools. Now, the UK-based company wants to break into the US market, and Pulsonix recently showcased its latest tools at PCB West. During the show, I spoke with Business Development Manager Ty Stephens about the company’s latest tools and plans to become a major player in the US market.
Nano Dimension’s 3D Printing: Prototypes at the Push of a Button?
SICK AG is a global manufacturer of sensors and sensor solutions for industrial applications, with headquarters located in Waldkirch, Germany. After a demo of Nano Dimension’s new 3D printing machine at productronica, Barry Matties met with SICK’s Danny Wernet to discuss its pros and cons and get his overall impression of the technology. Are 3D prototypes really as simple as feeding in a Gerber file and pushing a button?
Dr. Johannes Adam Gets Hot on Thermal Management
Thermal management expert Johannes Adam, PhD, was kind enough to take the train from his home in Leimen, Germany to meet with me during productronica in Munich. He is the creator of TRM (Thermal Risk Management) software and contributor, with Douglas G. Brooks, of "PCB Trace and Via Currents and Temperatures: The Complete Analysis, 2nd Edition." He’s also working on his own book on thermal management. Johannes sat down for an interview, and I asked him to share his views on the current state of thermal management for PCBs, and what the industry can do to put the spotlight on what’s hot in PCBs.
Mike Jouppi Discusses his Drive for Better Thermal Data
If you mention thermal management in a group of PCB designers and design engineers, Mike Jouppi’s name usually pops up. Mike is an engineer and founder of the Thermal Management LLC consulting firm. He spent years updating IPC’s charts on current-carrying capacity, which had been unchanged since the 1950s. I recently caught up with Mike and asked him to give us his views on the state of thermal management, as well as the tools and standards related to thermal design.
IEEE’s Romanian SIITME Show a Success
The 23rd annual IEEE International Symposium for Design and Technology in Electronic Packaging (SIITME) was held in Constanta, Romania, in October 2017. It attracted more than 190 participants from Romania, and 13 other counties. While there might be some who question the suitability of Romania as a venue for such a conference, the country has a long technological history and has produced some top innovators and pioneers in aviation including Aurel Vlaicu, Traian Vuia, Henri Coanda, who prototyped an early jet aircraft in 1910.
Three Perspectives for HDI Design and Manufacturing Success
Mike Creeden has been in the PCB design industry for more than 40 years now. In June 2003, he founded San Diego PCB Inc., a design bureau serving a variety of industries, including industrial, automotive electronics, medical diagnostics, internet of things (IoT), defense, aerospace, and communications markets. So, we asked Creeden to share his insights about HDI, and how designers and manufacturers can address those issues.
Cannonballs, eBooks, and Signal Integrity
I-Connect007 editors Andy Shaughnessy and Pete Starkey recently met with Polar Instruments Managing Director Martyn Gaudion at productronica. They discussed the success of "The Printed Circuit Designer’s Guide to…Secrets of High-Speed PCBs," the ongoing challenge of facilitating communication between designers and fabricators, and the influence of chemical bond-enhancement processes on insertion loss.
Zuken Teams With Nano Dimension for 3D Printing Design Flow
At PCB West, Zuken shared a booth with Nano Dimension. Zuken has been working with Nano Dimension for some time, and adding support for 3D printing and nanotechnology to its design tool platforms. I sat down with Zuken’s Humair Mandavia and Nano Dimension’s Simon Fried to learn more about this alliance, and to find out more about this odd-looking box being demonstrated in Zuken’s booth.
Video from productronica 2017: Karel Tavernier on Ucamco's New Communic8tor
European Editor Pete Starkey and Ucamco Managing Director Karel Tavernier discuss Ucamco’s cloud-based Communic8tor platform which facilitates two-way communication between the CAM engineer and the PCB designer, or any other party involved in the manufacturing process. This gives real-time access to image data and annotations, enabling queries to be resolved, changes to be approved, and a full communications history to be maintained.
Signal Integrity: The Experts Weigh In
When we began planning the October issue on signal integrity, we arranged a conference call with a variety of industry experts. Mike Steinberger of SiSoft, Mark Thompson of Prototron Circuits, and Yogen and Sunny Patel of Candor Industries joined editors Andy Shaughnessy, Patty Goldman, Happy Holden and Publisher Barry Matties on the call for a spirited discussion about the challenges related to signal integrity and some of the tricks of the trade for helping ensure SI.
Nine Dot Connects: Good Design Instruction is a True Value-Add
Nine Dot Connects has certainly blazed an interesting trail. The company started out as an Altium reseller, but in less than a decade, Nine Dot Connects has also become a design service bureau and a provider of PCB design instruction, training, and consulting services. I recently interviewed Paul Taubman, technical services director for Nine Dot Connects. We discussed the company’s expansion from VAR to service bureau and content provider, and the changing landscape of PCB design instruction.
AltiumLive Summit—Munich, Germany, Part 1
Altium held a very successful AltiumLive PCB Design Summit in San Diego, California at the beginning of October for the benefit of their North American design community, and followed it three weeks later with a counterpart European event in Munich. And what an eye-opener it proved to be—literally hundreds of delegates, a superbly organised and managed programme, billed as a completely immersive two-day interactive design experience on a theme of learning, connecting and getting inspired.
Happy Holden and Charles Pfeil Discuss the Past and Future of PCB Design, Part 1
When it comes to the PCB design community and the challenges facing it, as well as where design has been and where it’s heading, there aren’t many people as qualified to speak on the topic as long-time industry veterans Happy Holden and Charles Pfeil. Joined by I-Connect007’s Barry Matties at the recent AltiumLive 2017 event in San Diego, the three sat down for a discussion about the current state of PCB design, what the future holds, and what it means to be a designer.
Insulectro Teams with Isola to Address Signal Integrity Needs
Insulectro and Isola recently shared a combined booth during PCB West 2017. Insulectro has distributed Isola materials for years, and the companies wanted to focus on Isola’s line-up of high-speed, low-loss material sets. Insulectro’s Chris Hunrath, VP of Technology, and Norm Berry, Director of Laminates and OEM Marketing, sat down with me to discuss the challenges facing signal integrity engineers today, and some of the Isola low-loss, low-Dk materials that can help with their signal integrity requirements. You might find Chris and Norm speaking to a group of PCB designers near you.
AltiumLive 2017 Munich: Sold Out!
I recently sat down with Ted Pawela, Lawrence Romine, and Judy Warner of Altium to wrap up their sold-out AltiumLive 2017 PCB Design Summit in Munich, Germany. This conference, following on the heels of an AltiumLive event in San Diego, was packed full of PCB designers who attended a series of great keynotes and an excellent technical program. We discussed some of the highlights of the show, including designers’ reactions to a new version of Altium Designer 18 and the brand-new Altium Nexus tool.
Carl Schattke: I Started Designing Boards When I Was 12
Growing up with a father who owned a PCB design bureau, Carl Schattke, CID+, may have been predestined to design circuit boards for a living. In fact, he’s been designing boards for nearly his entire life. Carl gave a keynote speech at the recent AltiumLive event in San Diego, where I caught up with him to discuss a lifetime spent in PCB design, as well as the graying of the PCB design community and what might be done to inspire a youth movement in PCB design.
Dan Beeker’s AltiumLive Keynote: It's All about the Space
Dan Beeker of NXP Semiconductors was a keynote speaker at the recent AltiumLive 2017 event in San Diego. His presentation focused primarily on the design of three-dimensional structures and how it’s all about space. I caught up with Dan, and we discussed his presentation, his background and career, and what kind of advice he would give to young PCB designers.
It’s Not Your Father’s DFM Anymore
What does DFM look like today? Well, for one, it’s become more than DFM. We now expect our software tools to serve us more completely to take new designs to market. DFM has evolved to become an integral part of new product introductions (NPI). Today’s NPI software spans design and manufacturing to accelerate the optimization of a PCB for manufacturing. It looks at the entire design-to-manufacturing release process and deliverables, then streamlines them.
RTW SMTAI: Judy Warner Discusses AltiumLive: 2017 and Her New Role
At SMTA International in Rosemont, Illinois, Judy Warner of Altium discusses her new role as director of community engagement. She also details AltiumLive: 2017, which takes place October 3-4 at the Hilton San Diego Resort and Spa. AltiumLive features Happy Holden and Charles Pfeil, as well as a robot design challenge and battle.
Enough Blame to Go Around
The idea for this article began a few months ago when The PCB Design Magazine conducted a reader survey regarding the topic “Whose Fault is that Bad Board?” After some thought, I submitted my answers. After all, I must have some kind of input after over 25 years of PCB design. But still, whose fault is that bad board? OK, I know what you’re thinking: Don’t go there. We designers make mistakes too.
Resins: Cutting Through the Technical Jargon
This month, I’m going to cut through some of the more heavy-going tech-speak, taking a few of my customers’ more frequently asked questions about resins to try to help you refine your selection process. There’s a lot of ground to cover, but for the purposes of this column, let’s concentrate on the PCB’s operating environment, caring for the components that are to be encapsulated, and the special needs of applications like LED lighting and RF systems.
New Challenges Facing Mil/Aero Segment
For this month's issue, we invited a sampling of professionals whose experience centers on the electronics industry in the military and aerospace world, including experts from design, PCB manufacturing, and the assembly arena to sit down with us for a frank discussion. Our discussion centered on the challenges associated with military work, including the new regulatory requirements for cybersecurity, dealing with leaded vs. lead-free components, and the differences and similarities with the commercial world.
Stephen V. Chavez Talks Mil/Aero PCB Design
Stephen V. Chavez, CID+, is the lead PCB designer for the Electronic Systems Center division of UTC Aerospace Systems (UTAS), a military contractor that builds all manner of cutting-edge tools for the American warfigher. He’s been designing military and aerospace PCBs for decades, and he’s a veteran of the United States Marine Corps. I caught up with Steph and asked for his thoughts on designing PCBs for the military and aerospace markets.
Trilogy Circuits: Mil/Aero Demands Technological, Regulatory Expertise
In the 16 years since its founding, Trilogy Circuits has become one of the go-to companies for mil/aero PCB design and manufacturing. I spoke with Charlie Capers, president and founder of the Richardson, Texas firm, about how he keeps ahead of the game. As he explains, succeeding with mil/aero PCB work requires not only mastery of the technological side, but of the regulations and certifications as well.
Embedded Technology: A Useful Tool in Freedom CAD’s Toolbox
Freedom CAD has been designing and fabricating boards with embedded technology for years, and doing some pretty innovative work along the way. I asked Scott McCurdy, Freedom CAD’s director of sales and marketing, to share some details about their embedded processes, as well as the challenges and opportunities that embedded technology offers.
Romania’s PCB Design Students Compete at TIE 2017
During the last week in April, the 26th Interconnection Techniques in Electronics (TIE) show was held at the Gheorghe Asachi Technical University in Iasi, Romaina, a wonderful hill town not unlike Rome. The event, a convention for the Romanian electronic packaging community, included a series of actions designed to draw smart young students to the electronics industry, which is clearly growing. Participants had only four hours to create this PCB design, which was generated by a team of professionals from Continental Automotive Romania Timisoara.
Bruce Mahler Discusses Ohmega’s Resistive Material Technology
Bruce Mahler, vice president of Ohmega Technologies, sat down for an interview with me at DesignCon 2017. He discussed the company’s latest embedded resistive materials, as well as some of the drivers and challenges in that segment of the materials industry.
TTM Shines a Light on Optical Interconnect
Are embedded optics on PCBs set to make a breakthrough in the upcoming years? According to Dr. Craig Davidson, VP of Corporate Technology at TTM, it might be closer than you’d expect. In a recent interview with the I-Connect007 team, Craig outlines TTM’s current pursuit of high-volume manufacturing lines able to deliver embedded optical interconnect, what that would mean for the PCB industry, and why he thinks there will be manufacturing production capability by 2020.
Mentor Graphics Takes Best Paper Award at DesignCon
At DesignCon, I met with Dave Kohlmeier, senior product line director for Mentor Graphics. We discussed their Best Paper award and DesignCon sessions such as the Signal Integrity Boot Camp, as well as the new rigid-flex capabilities found in the HypeLynx suite.
A New Power Design Methodology for PCB Designs
Advanced PCB design is an iterative process of analysis-fix-analysis. Historically, this process is very time-consuming, requiring analysis experts and PCB designers to work together to find and fix layout problems. This article describes a new PCB design methodology that allows a PCB designer to perform the power design without having to run expert-level analysis tools. This methodology provides the setup automation for advanced analysis without the need to understand every minute parameter, and can be completed in a few steps.
Cadence’s Zhen Mu Discusses Her Power-Aware Analysis Solution White Paper
At DesignCon, I met with Zhen Mu, senior principal product engineer with Cadence Design Systems, and Brad Griffin, product marketing director for Cadence. We discussed Zhen’s new white paper, “Power-Aware Analysis Solution.”
The Evolution of PCB Design and Designers
According to Rainer Asfalg of Altium, VP Sales EMEA, EDA companies owe it to their customers to provide much more than just a standard design tool. Barry Matties met with Rainer at the recent electronica show to discuss the continued evolution of the design process towards automation, and what this might mean for the education and overall requirements of PCB designers going forward.
A Handy Compilation of Our Top 10 DFM Articles
When we started working on this DFM issue, I searched through our files and found that we’ve published some great DFM articles over the past year or so. While topics like signal integrity tend to get most of the limelight, in the end it all comes down to solid DFM practices. So, without further ado, we present this compilation of our Top 10 DFM articles and columns.
Flex and Rigid Sales and Marketing with Al Wasserzug
After decades in the PCB industry, Al Wasserzug of Cirexx International has seen marketing and sales trends come and go. I recently caught up with Al and interviewed him via email about the latest sales and marketing techniques, the value of traditional methods such as trade shows and conferences, and the particular characteristics of marketing flex circuits.
Much Ado About Sales and Marketing
We recently surveyed our readers to get a better idea of what company leaders thought about sales and marketing. We sent this survey to several sales leaders; the results were informative, at times surprising, and even a bit disappointing, especially when participants reported that they had no sales and marketing plan at all. Does your company fall into that category?
SiSoft Discusses Signal Integrity Drivers and Challenges
In the last few years, SiSoft has launched a variety of innovative SI tools that help automate tasks that used to take weeks or months to complete. I recently interviewed CEO Barry Katz via email, and he detailed their customers’ challenges, and some of the market drivers in the world of signal integrity.
Lightning Speed Laminates: The Blending of High-Speed Digital and High-Frequency RF
When the terms high-speed and high-frequency are mentioned, people think they describe the same issue. But in reality, they can be two very different matters. The term high-speed generally refers to digital technology which transfers data at very high rates. But the term high-frequency is typically related to radio frequency (RF), which involves analog signals moving energy at high frequencies.
Mentor Graphics’ PADS Platform Bridges Design and Manufacturing
At PCB West, Barry Matties spoke with Paul Musto about Mentor’s PADS environment and their introduction of scalable software tools to help design better boards, from the enterprise level down to the entry level and hobbyists. They also discussed the evolution of the design process infrastructure in North America vs. Asia, and what design engineers should focus on to increase their value.
The Shaughnessy Report: Leadership vs. Management
Is your manager one of the great ones, a true leader? Many of your colleagues would probably answer with a pointed “No.” In our reader surveys, we ask, “What is your biggest challenge?” Every time we've posed that question, we received replies along the lines of, “Management doesn’t know what the hell they’re doing.” Some replies are too salty to print.
Space: Still the Final Frontier
If this doesn’t make you feel like a “seasoned citizen,” I don’t know what will: "Star Trek" first aired 50 years ago, on Sept. 8, 1966. No one—not even the actors—thought the show would last, and it only ran for three seasons, drawing average ratings. But Captain Kirk and company are more popular than ever on their Golden Anniversary.
The Evolution of Altium: Road to a Record-Breaking Year
Chris Donato, VP of sales for Altium Americas, sat down with Judy Warner recently to discuss what he and Altium have been doing lately, where they came from (Australia) and what the future holds for Altium. This company has evolved from flying well under the radar during the acquisition frenzy of the ‘80s, to achieving a record $100 million in sales for fiscal year 2016.
Orange Co. Designers Council Meeting Draws A Packed House
Speaker John Stine, VP of operations at Summit Interconnect’s Anaheim facility, gave a presentation on flex and rigid-flex design and fabrication. At least 75 electronics professionals listened as Stine, an expert in flex and rigid-flex technologies, discussed proper trace geometries, grounding, cover lay, adhesives, signal integrity, impedance control, book-bindings and much more in his 80-minute presentation.
Sensible Design: When Coatings Go Wrong
This month, I consider some of the more common, and often very frustrating, problems that may be encountered when coating electronic circuit boards and components. I also discuss some practical solutions. As we all know, nothing in life is straightforward.
New SI Techniques for Large System Performance Tuning
In this DesignCon paper, Donald Telian of SiGuys and Michael Steinberger and Barry Katz of SiSoft describe newly-developed techniques for equalization tuning and discontinuity reduction, offering additional design margin. Cost reductions are also achieved as new signal integrity techniques demonstrate performance parity, removing non-essential re-timers and PCBs layers.
Software Bytes: Having Fun With Impedance
About a year ago, I was assigned a new project: become an expert in impedance, more or less. I had no idea how much this research would bring out the nerd in me. Even if you don’t typically design controlled-impedance circuit boards, you probably will eventually. Read on!
Getting Signal Integrity Right by Design
As clock frequencies increase and active devices and interconnect traces shrink and are placed ever closer together, signal integrity becomes an increasing challenge. Today, SI is typically addressed late in the design process after the PCB layout has been completed by performing complex and time-consuming 3D extractions and simulations for high-speed lines. But with little attention being paid to SI during the layout process, simulation frequently identifies numerous SI problems.
Beyond Design: Mastering “Black Magic” with Howard Johnson’s Seminars
Dr. Howard Johnson, the world’s foremost authority on signal integrity, has recently released his High-Speed Digital Design (HSDD) Collection. I recently reviewed all three of the seminars in this collection, a total of 36 hours of viewing time. If you want to gain some of Dr. Johnson's enthusiasm and master the art of high-speed design, then the collection is a must-have.
Designing With Tighter Tolerances
David Ledger-Thomas is a PCB design engineer with Honeywell Aerospace. He’s spent decades designing PCBs for a variety of applications, including defense, aerospace, computers, and high-performance audio. I asked David to share some of his thoughts on designing high-tech boards with increasingly finer spaces, traces and pitch.
The State of the Electronic Design Automation Nation
We are the automation nation. We are the high-speed demons, the low-frequency artists, the mixed-signal designers that make up the electronic design automation industry. We spend most of our working lives behind software, delivered to our fingertips with the promise of making things easier, faster, better, and getting us to our deadlines ever faster.
Beyond Design: The Case for Artificial Intelligence in EDA Tools
There has been a lot of activity in the field of artificial intelligence recently, with such developments as voice recognition, unmanned autonomous vehicles and data mining to list a few. But how could AI possibly influence the PCB design process? This month, Barry Olney will take a look at the endless possibilities.
EIPC Summer Conference 2016, Day 1: Strategies to Maintain Profitability in the European PCB Industry
Resplendent in the kilt, EIPC chairman Alun Morgan welcomed a large and enthusiastic gathering of printed circuit professionals from all over Europe and as far afield as the USA, Canada and Russia, to the EIPC Summer Conference 2016 in Edinburgh, Scotland's cosmopolitan capital city.
DownStream: What a Long EDA Trip it’s Been
No doubt about it: DownStream Technologies co-founder Joe Clark is an EDA veteran, with a history that dates back to the very beginning of EDA tools through the merger madness of the late ‘90s and beyond. I sat down with Joe during IPC APEX EXPO, and asked him about some of the changes he’s seen, and the direction of DownStream as it enters its 15th year.
The Shaughnessy Report: The Designer Roundtable Roundup
Every year, I attend SMTA Atlanta, just across town. You have to love a local trade show. No airlines, no jet lag, and no hotels. It’s a small show; it would fit in a school gymnasium. But for me, the highpoint of SMTA Atlanta is the Designers Roundtable. This year the roundtable had 15 attendees, up from 12 last year. Two of the new attendees were under 35, which surprised all of us "graybeards."
Design Automation Tools, Today and in the Future
Kelly Dack has been designing PCBs for over three decades, at OEMs of all kinds. Now a PCB designer with a Washington state contract manufacturer, Kelly enjoys waxing philosophic about PCB design and design automation in general. I asked Kelly about the direction EDA tools are headed, and whether he’d like to see more control, or more automation in his PCB design tools.
Beyond Design: DDR3/4 Fly-by vs. T-topology Routing
JEDEC introduced fly-by topology in the DDR3 specification for the differential clock, address, command and control signals. The advantage of fly-by topology is that it supports higher-frequency operation, reduces the quantity and length of stubs and consequently improves signal integrity and timing on heavily loaded signals. Fly-by topology also reduces simultaneous switching noise (SSN) by deliberately causing flight-time skew.
Designers Notebook: Flexible and Rigid-Flex Circuit Design Principles, Part 6
The designer is generally under pressure to release the documentation and get the flexible circuit into production. There is, however, a great deal at risk. Setting up for medium-to-high volume manufacturing requires significant physical and monetary resources. To avoid potential heat from management, the designer must insist on prototyping the product and a thorough design review prior to release.
The Partnership: Design Engineers and PCB Designers
Randy Faucette is founder, president and director of engineering at Better Boards Inc. in Cary, North Carolina. I asked Randy to talk about some of the occasional tension between PCB designers and design engineers, and what he thinks can be done to help open the lines of communication.
SiSoft: Optimizing the State of the Art
In the 20 years since its founding, SiSoft has been at the forefront of signal integrity analysis tool development. Now, the company is leading the way with a new technology called OptimEye and tools for creating accurate IBIS-AMI models. Todd Westerhoff, VP of semiconductor relations, gives us an update on the company’s newest technologies.
Behind the Scenes: Adcom’s TLA Award-Winning Design
Adcom’s design team placed first in this year’s TLA program, taking the top spot for the category of “Computers, Blade & Servers, Memory Systems.” This board, like most PCBs today, is a complex system designed by a multi-disciplinary team of designers, striving to bring an operational product to the market on schedule.
Quiet Power: Dynamic Models for Passive Components
A year ago, my Quiet Power column described the possible large loss of capacitance in multilayer ceramic capacitors when DC bias voltage is applied. However, DC bias effect is not the only way we can lose capacitance. Temperature, aging, and the magnitude of the AC voltage across the ceramic capacitor also can change its capacitance. This column will provide all of the details.
Design Strategies for Success—and Profit
In today’s economic environment, making money on a project is getting more and more challenging. Those years when businesses like mine were practically printing money are long gone. If you are under 30 years old, you probably do not have this point of reference; it’s been one downturn after another for your entire adult life. But for us older folks, times were really good back then. So, what happened? You happened, as well as a million others like you. In other words, the market is a little cramped now and much more competitive, which dilutes our profit per project.
Beyond FR-4: High-Performance Materials for Advanced Designs, Part 1
In the past 40-plus years of PCB manufacturing, the primary material of choice has overwhelmingly been e-glass supported FR-4 resin laminates. This is due to the excellent dimensional stability and reasonably acceptable thermal performance (based on glass transition temperature [Tg] and decomposition temperature [Td]). In general, these materials exhibit impressive performance and excellent cost for a wide range of applications.
Designers Notebook: Flexible and Rigid-Flex Circuit Design Principles, Part 5
The outline profile of the flexible circuit is seldom uniform. One of the primary advantages of the flexible design is that the outline can be sculpted to fit into very oblique shapes. This month, Vern Solberg focuses on outline planning, physical reinforcement, and accommodating bends and folds in flexible and rigid-flex circuits.
Wild River: Simplifying SI so Engineers Can Focus on Design
Al Neves is founder and chief technologist of Wild River Technology, and he’s a signal integrity engineer who likes to tell it like it is. So when I bumped into Al during DesignCon, I asked him to sit down for an interview. We discussed the paper he co-wrote for DesignCon and the challenges SI engineers are facing, as well as Wild River’s efforts to take the black magic out of signal integrity.
Steinberger Talks PAM4, the Next Generation of Modulation
I recently interviewed our old friend Michael Steinberger, SiSoft’s lead architect for serial channel products. Steinberger is always a great interview; he breaks down complex signal integrity simulation technology in ways that are simple and often humorous. Steinberger sat down and discussed a paper he presented at DesignCon, and some of the challenges his customers are facing.
IPC APEX EXPO: Gary Carter on First Board Manufactured With IPC-2581B
Gary Carter, senior manager of CAD engineering for Fujitsu Network Communications, discusses the first board fabricated and assembled using IPC-2581B. This 20-layer board features 21,000 component pins and 15,000 holes, with controlled impedance on all layers. He also gave a presentation on IPC-2581B during the Design Forum.
The PDN Bandini Mountain and Other Things I Didn’t Know I Didn’t Know
Originally, Bandini Mountain referred to a mound of fertilizer built by the Bandini Fertilizer Company in California prior to the 1984 Los Angeles Olympics. When the company went bankrupt, this mound of fertilizer was left behind. Steve Weir coined this term to describe the large resonant frequency peak formed by the parallel combination of the on-die capacitance and the package lead inductance, as seen from the die looking into the PDN.
Designers Notebook: Flexible and Rigid-Flex Circuit Design Principles, Part 4
All of the design rules for the glass reinforced-portion of the board (land pattern geometry for mounting surface mount devices, solder mask and the like) are now well-established. One unique facet of fabricating the rigid-flex product is how the flexible portion of the circuit is incorporated with the rigid portion of the circuit. As a general rule for multilayer PCB design, furnish a balanced structure by building up the circuit layers in pairs (4, 6, 8 and so on).
IPC APEX EXPO: Prototron Works with Customers to Stay on Top
Prototron Circuits Operations Manager Mike Graves explains how his company's focus on customer service, including helping with PCB designs, has made Prototron "America's Board Shop." He also discusses their expansion into flex and HDI technology, and their efforts to achieve AS9100 certification.
IPC APEX EXPO: Glenn Oliver on His IPC 'Best Paper' on High-Frequency Materials
Glenn Oliver of DuPont discusses his award-winning paper, “Round Robin of High-Frequency Test Methods by IPC-D24C Task Group." Co-authors include Jonathan Weldon of DuPont, John Andresakis of Park Electrochemical, Chudy Nwachukwu of Isola, John Coonrod of Rogers Corporation, David L. Wynants of Taconic Advanced Dielectric Division, and Don DeGroot of Connected Community Networks. The paper looks at high-frequency offerings from a variety of materials providers.
Mark Thompson: It’s All About Communication
In engineering support at Prototron Circuits, Mark Thompson has seen it all. He ensures that each design is manufactured the way the designer intended, even if the CAD data is not crystal clear. During DesignCon, Barry Matties and Andy Shaughnessy talked with Thompson about why communication is paramount when designing and prototyping boards. Thompson also explained how designers can avoid making common mistakes that can set back an entire project.
DuPont, Taconic and PFC Team Up For High-Speed Flex
At DesignCon, I sat down with three flex circuit specialists: Glenn Oliver of DuPont, Tom McCarthy of Taconic, and Steve Kelly of PFC Flexible Circuits. Our discussion covered a lot of territory, most notably the findings they described in the paper they were about to present later that day at DesignCon, and the future of flex, as they see it.
Designers Notebook: Flex and Rigid-Flex Circuit Design Principles, Part 2
In this installment of "Designers Notebook," Vern Solberg discusses supplier assessment, planning of the flexible circuit outline, and various circuit routing principles. Communication between designer and fabricator is paramount, as well as an understanding of IPC-2223, which sets the specific requirements for the design of flex circuits.
Designers Notebook: Flex and Rigid-Flex Circuit Design Principles, Part 1
In his new Designers Notebook column, Verb Solberg discusses primary flex circuit structures, proper design for operating environment, and base material selection. The design guidelines for flexible circuits, although similar to those for rigid circuits, have distinctive differences that are influenced by specific applications and the intended operating use environments. Communication with your fabricator is paramount when designing flex and rigid-flex circuits.
IPC Designers Council Viewpoint: Gary Ferrari
As co-founder and longtime executive director of the Designers Council, Gary Ferrari has dedicated a big part of his career to PCB design. After decades of service, he was inducted into the IPC Hall of Fame at IPC APEX EXPO this year. I caught up with Gary and asked him to fill us in on the creation of the Designers Council, and some of the changes he’s seen in the last 24 years.
Electrical Design Challenges for Automotive PCBs
A recent article in this magazine by Monica Andrei of Continental Automotive Systems emphasized the systemic nature of an automobile and discussed the characteristics and adoption of software design tools to enable such system-level design. Recognizing that electrical challenges are part of the automotive system-level discussion, this article will present more detail on signal integrity. Future discussion is planned regarding EMI, power integrity, and thermal integrity.
McCurdy: How to Build a Successful IPC Designers Council Chapter
When Scott McCurdy made his transition from PCB fabrication to a PCB layout focus about 13 years ago, he accepted an invitation to attend our local IPC Designer’s Council. Shortly after, he was recruited to serve on the group’s steering committee. At that time, 20–25 people were regularly attending the meetings. When the chapter president moved, he asked Scott to take his place. Now, Orange County chapter meetings often draw close to 100 attendees.
IPC Designers Council: Serving PCB Designers for Almost 25 Years
You may have seen Anne Marie Mulvihill at the Design Forum during IPC APEX EXPO, rounding up speakers with a sarcastic comment or two. As PCB design program manager for IPC, Anne Marie makes the design train run on time. When I told Anne Marie that we were covering the Designers Council for this issue, she jumped at the chance to help us.
IPC Designers Council Viewpoint: Rick Hartley
Rick Hartley has been in involved in PCB design and design education for decades, so it’s no surprise that he started working with the IPC Designers Council early on. Now retired from his day job at L-3, Rick still teaches PCB design and shows no sign of slowing down. I asked him to discuss his work with the Designers Council, and what the group means to the design community.
IPC: Connecting Electronics Industries
John Mitchell, president and CEO of IPC—Association Connecting Electronics Industries, provides the basic overview of the association—its goals and basic mission, activities, and how it best serves its membership. He also provides a snapshot of how IPC promotes technology development in the industry through standardization.
EMA: Helping Technologists Manage Disparate Data
Today’s EDA tools are better than ever, but managing design data, from schematics through Gerbers, can be an unwieldly task. I recently interviewed Manny Marcano, president and CEO of EMA Design Automation. He discusses EMA’s approach to managing a variety of types of complex data, the need for seamless data processes, and the future of compliance-aware design.
Orange County IPC Designers Council Meeting Draws Record Crowd
On November 18, the Orange County Chapter of the IPC Designers Council held a “Lunch ‘n’ Learn” event at the Harvard Park Community Center in Irvine, California. Eighty-nine PCB designers and electronics industry professionals gathered to listen to a talk by Chris Heard, a signal integrity engineering consultant at CSH Consulting LLC.
Good in, Good out: Bay Area Circuits Discusses Data Strategies
A lot of companies talk about the importance of good data management, but for some firms, this amounts to little more than lip service. Then there are companies like fabricator Bay Area Circuits. I recently sat down with Bay Area Circuits President Stephen Garcia and COO Brian Paper to discuss how automating and upgrading their data systems has significantly cut down overall process time, as well as their drive to educate young PCB designers and actively promote the industry to the emerging electronics industry workforce.
Beyond Design: Stackup Planning, Part 4
In this final part of the Stackup Planning series, I will look at 10-plus layer counts. The methodology I have set out in previous columns can be used to construct higher layer-count boards. In general, these boards contain more planes and therefore the issues associated with split power planes can usually be avoided. Also, 10-plus layers require very thin dielectrics in order to reduce the total board thickness. This naturally provides tight coupling between adjacent signal and plane layers reducing crosstalk and electromagnetic emissions.
Arlon’s John Wright Discusses New High-Performance Materials
During productronica, European Editor Pete Starkey interviewed Engineering/Quality Manager John Wright of Arlon. They discussed Arlon’s new 85HP ceramic-filled polyimide, as well as a non-woven aramid material, suitable for space applications, that is a drop-in replacement for a similar material discontinued by a competitor in 2006.
Insulectro Hosts Silicon Valley Designers Council Meeting
On October 15, about 25 people gathered for the IPC Designers Council Silicon Valley Chapter meeting at Insulectro's Mountain View facility. Carl Schattke, senior PCB design engineer at Tesla, was the main speaker. His presentation covered a variety of facets of PCB design, from shadowing to the location of component based on weight and surface finishes.
The Challenges of Being Competitive in Automotive Electronics Manufacturing
Simple electronics were gradually introduced into automobiles from the earliest times. At first, these were just simple electro-mechanical devices to make cars work without manual effort, such as to start the engine and keep windshields clear. But in this past decade, we have seen the effects of the gradual growth of issues with electronics systems, with recalls caused by safety issues that cost automotive manufacturers millions of dollars. Electronics within an automotive environment today requires a new approach to ensure a higher level of quality perfection.
The Shaughnessy Report: Car Talk
The automotive electronics segment has exploded. Early cars didn’t have much in the way of electronics. Even in 1950, electronics made up only 1% of a car’s cost. But that figure is expected to hit 35% in 2020, and 50% in 2030. The global automotive electronics market is forecast to hit $314.4 billion by 2020, and that means a whole lot of PCBs.
The Gerber Guide, Chapter 2
Never mirror or flip layers! All layers must be viewed from the top of the PCB, which means that the text must be readable on the top layer and mirrored on the bottom layer. Alas, sometimes, in a mistaken attempt to be helpful, designers flip layers because they must anyway be mirrored on the photoplotter. This could be helpful in a world where the designer's files are used directly in fabrication, but these data layers are actually input for the CAM system.
Jack Pattie Discusses New Ventec Facility
Jack Pattie, CEO of Ventec USA, discusses the company's newest laminate facility, which recently opened in Northern California. He explains how this location, the company's fourth, will help Ventec better serve customers in that region.
Automotive Systems Design: a Support Engineer’s Perspective
In a nutshell, the promise of the system design approach is to allow for hitting the “sweet spot” in terms of functionality, quality and reliability, in the shortest possible design time and with the lowest possible resource investments. In an industry that has a very long time to market (on average around 1,000 days), steadily increasing quality demands and an ever intensifying pressure to lower costs, all these promises become most attractive and compelling.
Failure May Not Be an Option, but Sometimes It's a Reality
I’ve had mechanical engineers question why we are bothering with circuit boards instead of designing the circuitry into the plastic housing of the device. I’ve had manufacturing engineers demand that I shelve the electrical considerations in order to meet manufacturing requirements, and electrical engineers who could care less if the product could actually be built. I’ve had engineers hover over my shoulder watching each and every stroke of the mouse that I make, and others who are never available for important questions which ultimately brought the whole project to a grinding halt.
Beyond Design: Stackup Planning, Part 3
Following on from the first Stackup Planning columns, this month’s Part 3 will look at higher layer-count stackups. The four- and six-layer configurations are not the best choice for high-speed design. In particular, each signal layer should be adjacent to, and closely coupled to, an uninterrupted reference plane, which creates a clear return path and eliminates broadside crosstalk. As the layer count increases, these rules become easier to implement but decisions regarding return current paths become more challenging.
Karel Tavernier: The Gerber Guide
It is possible to fabricate PCBs from the fabrication data sets currently being used—it's being done innumerable times every day. But is it being done in an efficient, reliable, automated and standardized manner? At this moment in time, the honest answer is no, because there is plenty of room for improvement in the way in which PCB fabrication data is currently transferred from design to fabrication.
Gary Ferrari Shares His Thoughts on PCB Design and More
Recently, I spoke with Gary Ferrari, director of technical support at Firan Technology Group, about numerous topics related to PCB design. Our conversation ranged from CID training to the need for reaching high school students as a way of introducing more young people to career opportunities in our industry. We also covered strategies for helping customers design and build better product, and keeping designers provided with the most critical part of their supply chain—information.
Fast Interconnect: Engineering Services for the Masses
Gary Griffin and Ana Rosique are co-founders of Fast Interconnect, an Arizona-based product engineering company designed to serve an underserved market: the small product developers, inventors, and anyone with an idea for a “cool gadget.” I caught up with Griffin recently to discuss the new company, its innovative business model, and the challenges facing smaller OEMs and product developers.
Avoid Overbuilding your RF Printed Circuit Board
Today, many companies are overbuilding and “overmaterializing” their RF printed circuit boards. In this interview, James Hofer of Accurate Circuit Engineering (ACE) shares some strategies to avoid doing both, which will help lower the total cost of your PCB and improve the overall product quality. Hofer also discusses some of the challenges in the laminate supply chain.
The Past, Present, and Future of IPC-A-610
To understand the ultimate power of IPC-A-610, you need to first understand what is at the core of this standard. IPC-A-610 is a collection of visual quality acceptability requirements for electronic assemblies. It is utilized as a post-assembly acceptance standard to ensure that electronic assemblies meet acceptance requirements.
Electronic Design Training Crucial to Industry Growth
In the UK, the electronics industry contributes over £80 billion (approximately US$120 million) to the economy, representing 5.4% of UK GDP, employing over 850,000 people. There is, however, in many countries, a growing concern around labour shortages within the electronics industry, with worries over appropriate workforce skill levels growing.
Broadcom PCB Design: Miniaturization on the Cutting Edge
Editor Andy Shaughnessy recently attended the Orange County Designer's Council “Lunch and Learn” meeting, held at the Broadcom offices on the campus of the University of California, Irvine. Afterward, he sat down with Scott Davis, CID, the senior manager of PC board design at Broadcom, to discuss the company’s savvy PCB design department and their approach to PCB design.
Reliability and Harmonization of Global Standards at Forefront of EIPC Efforts
At IPC APEX EXPO 2015, I-Connect007 Technical Editor Pete Starkey caught up with EIPC's Michael Weinhold and Alun Morgan, who were happy to discuss both recent and ongoing focuses for EIPC, namely, reliability. Also touched on was the importance of the alignment of global standardization processes, especially for Asia.
Effective Characteristic Impedance
Reflections can occur anytime there is an impedance mismatch on the line. Sources of mismatches are plentiful and include trace width changes, vias, stubs, reference plane changes, and even the so-called fiber weave effect. In this case, a trace can encounter a different dielectric constant depending on whether it is routed over glass or the epoxy resin in the dielectric material. In this investigation by Kirk Fabbri, it is the capacitive contribution of the different components that are of interest, and how they affect the characteristic impedance the driver sees.