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Resins: Cutting Though the Technical Jargon
08/21/2017 | Alistair Little, Electrolube
New Challenges Facing Mil/Aero Segment
08/16/2017 | Stephen Las Marias, I-Connect007
Stephen V. Chavez Talks Mil/Aero PCB Design
08/14/2017 | Andy Shaughnessy, PCBDesign007
Orange Co. Designers Council Meeting Focuses on Embedded Passives
08/09/2017 | Judy Warner, Altium
Trilogy Circuits: Mil/Aero Demands Technological, Regulatory Expertise
08/07/2017 | Andy Shaughnessy, PCBDesign007
Design :: New Products
Orange Co. Designers Council Meeting Focuses on Embedded Passives
On July 19, the Orange County Chapter of the IPC Designer’s Council hosted a lunch-and-learn meeting in Tustin to discuss the benefits of embedded passives. Approximately 40 people were in attendance, which was lighter turnout than usual, most likely because of summer vacations. But the crowd was an enthusiastic one, as usual. The first speaker was Bruce Mahler of Ohmega Technologies, followed by Jin Hyun-Hwang of Dupont.
A Deep Look Into Embedded Technology
In preparation for this month’s magazine, we set up a conference call with the goal of uncovering the challenges and opportunities related to embedded technology. Invited were a handful of the industry’s heavy hitters in the embedded world: Retired technologist and I-Connect007 Contributing Editor Happy Holden, and Ohmega’s Technical Director Daniel Brandler and Design & Test Engineer Manuel Herrera.
Launching a New PCB Design Curriculum in Serbia
Let me share with you an experience that I remember from my college days. When I was a student, I had a professor who was too proud of the fact that she was an academic. “You don’t need to know how to manually solder electrical parts or how to design printed circuit boards,” she lectured. “It is important that you understand the formula for charge carrier currents in a p-n junction.” I started working as an R&D engineer for a Swiss company that developed and manufactured instruments for measuring magnetic fields and electrical currents. And nobody ever asked me about charge carriers in p-n junctions.
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.
PCB Design in the Age of IoT
From the early days of printed circuit boards, the electronics industry has made huge strides in board materials, copper printing methods, miniaturization, rigid-flex, ELIC, EDA, and much more. Many of the devices we use in our homes, our vehicles, and in our workplaces would not be possible without this continuous evolution of PCB design and technology. And yet in 2017, we are poised to shift from evolution to revolution, driven by the idea of the Internet of Things.
SnapEDA: Recruiting Top Engineering Talent in an Amazon World
You don’t have to love EDA to work at SnapEDA, but it helps. This startup, founded by Natasha Baker, is on its way to creating the world’s largest parts library for PCB designers. Baker leads a small team of young, fiercely talented engineers—the kind of employees that are attractive to companies like Google and Facebook. I asked Natasha to explain her hiring process, and how she ensures that each employee is the right fit for SnapEDA.
Steve Robinson Discusses APCT’s Tenfold Expansion
Steve Robinson, CEO of APCT, a PCB fabricator in Silicon Valley, has led the company to impressive growth since he acquired it nearly 10 years ago. I ran into Steve at DesignCon 2017, and we sat down to discuss the company’s remarkable transformation and his focus on working with PCB designers and engineers to create advanced, high-speed PCBs.
San Diego IPC Designers Council Meeting Held at Del Mar Show
The Del Mar Electronics and Manufacturing Show is a long-time favorite among PCB professionals. What better place to hold a meeting of the San Diego Chapter of the IPC Designers Council? Each year, the San Diego Chapter of the Designers Council hosts their largest meeting of the year at the Del Mar show. This year, approximately 50 PCB designers and electronics professionals attended the lunch-and-learn meeting.
Sensible Design: Casting a Spotlight on Resin Applications
Over the last few columns, I’ve given readers pointers on virtually every aspect of potting and encapsulation resins, ranging from their formulations and special properties to their applications, benefits and limitations. It’s probably high time, therefore, to take a step back from the do's and don’ts and focus instead on how these resins are bringing very real benefits to practical electronic and electrical engineering applications. A good starting point is to look at the special requirements of an industry that is enjoying explosive growth: LED lighting.
'Flexdude' Tom Woznicki Celebrates Company’s 25th Anniversary
Twenty-five years ago, Tom “Flexdude” Woznicki got laid off. A lot of people did, back during the mini-recession that helped bring Bill Clinton into the White House. So, he launched his own flex circuit design bureau and never looked back. Since then, he’s designed flex circuitry for everything under the sun, including the Mars Rover; the flex circuits he designed are visible in many of the Rover photos. I ran into Tom at DesignCon 2017 and we discussed the benefits of flex circuits, the expansion of the flex market, and his company’s first quarter-century in operation.
China High-Speed PCB Market Update with Polar's Simon Chan
During the recent CPCA Show in Shanghai, Editor Stephen Las Marias and Polar Instruments (China) Assistant Manager Simon Chan discussed the opportunities and challenges for Polar's customers in the Asia-Pacific region, as well as the current state of the high-speed PCB market in China.
Rigid-flex Design Tips and Best Practices
While the traditional “design-separately-then-assemble” approach minimized potential issues with the flex portions of the product, it also had several inherent disadvantages. These include the cost associated with the physical connectors; the space required for the physical connectors; the need to properly manage interconnects that have to transition between the separate rigid and flex PCBs (through the connectors); and, of course, the time and cost associated with assembly. The move to the current generation of rigid-flex technology mitigates these issues; however, they are replaced with a different set of challenges and concerns.
Perpetual or Subscription EDA Tool Licenses? That is the Question
After I began working at Altium, I started learning all I could about PCB design software licensing. I wondered about the pros and cons of perpetual vs. subscription licenses. I wanted to learn firsthand from PCB designers what kind of benefits they received and challenges they faced as a result of how EDA companies offered design tools. I reached out to a variety of sources to get a broad slice of insight into this evolving issue, and thus began my trip down the EDA licensing software rabbit hole.
Tom Hausherr Discusses PCB Libraries’ BOM Builder Service
PCB Libraries CEO Tom Hausherr and Editor Kelly Dack discuss PCB Libraries’ new BOM Builder service during IPC APEX EXPO. Equipped with the new LEAP technology, the BOM Builder can potentially save PCB designers days or weeks of time normally spent turning a BOM into a CAD library.
Selling PCB Design Services in a First-World Country
As the business operations manager for Better Boards Inc., I see our company at the focal point for consolidation: a gathering of skilled board designers to create a center of excellence. It is at this point that we have the critical problem facing a PCB design services company: How do we effectively sell these services back to the companies that cast off their own skilled employees? How do we sell PCB design services into small companies that can barely afford the one overworked electrical engineer that they hired last year?
In Deep: The Art and Science of DFM with Gary Ferrari
When the topic of DFM techniques came up, I knew I had to talk with Gary Ferrari of FTG Corp. Gary has been involved with designing and manufacturing PCBs for decades, and he’s the past co-founder and executive director of the IPC Designers Council. I caught up with Gary between Thanksgiving and Christmas, and we conducted the following interview.
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.
Resins: Five Essentials to Achieve the Right Cure
Last month, I looked at some of the critical things you need to consider before selecting your resin. Of course, when it comes to the choice and application of resins, there’s a lot of information to take in, and over the following months I hope to distill this and provide some useful tips and design advice that will help you in your quest for reliable circuit protection.
CAT’s David Wolf on Via Reliability Analysis
Conductor Analysis Technologies (CAT) has been analyzing test panels and coupon designs for over 20 years. CAT’s analysis provides valuable, quantitative data on PCB quality and reliability, which can help designers and manufacturers trace the source of defects and non-uniformities. Vice President of Technical Marketing David Wolf discusses some of the trends he’s seeing in via structures, and the common reliability and quality issues related to vias.
The Fundamentals of Improving PCB Thermal Design
Continental's automobile engineers have years of experience building critical parts and systems for automobiles. Making sure that automotive electronics are reliable, safe, and properly designed begins at the component level. Heat must be addressed early in the design process for these goals to be achieved. The most important thermal resistance for heat, outside the IC package, is the PCB.
Prototron Adding a Variety of Services and Certifications
Editor Judy Warner and Prototron Sales Manager Russ Adams discuss Prototron's new capabilities and certifications. The company recently added via fill and limited flex services, and is ready to pull the trigger on AS9100 once the new rev is finalized.
Increasing Heat Dissipation in FPGAs
In recent years, the miniaturization and modularization of electronic products have led to the increased density of electronic components and the decrease of areas for effective heat dissipation. As a result, the thermal design of high-powered electronic components has become a major focus for electronics engineers. An effective solution for FPGA heat dissipation is critical. Thermal design of the PCB aims to decrease the temperature of both components and the board through suitable measures, so that the system is capable of working at a suitable temperature.
Lightning Speed Laminates: The Dilemma--Soldermask for High-Frequency PCBs
Typically, PCBs with RF traces on the outer layers have minimal or no soldermask in the RF circuitry areas. Many times the soldermask is applied in areas where components are soldered to the PCB but the soldermask is developed away in the areas where conductors have critical RF performance. There are many reasons to avoid soldermask coverage on RF conductors, due to inherent soldermask properties.
Designing with Fine Lines and Features
Albert Gaines is the owner and senior PCB designer at HiGain Design Services in Norcross, Georgia. He’s been a PCB designer since 1981; he's designed a variety of boards in that time. I asked Albert to talk about some of the finer lines and features that come through his shop, as well as some design techniques for boards with tight tolerances.
From the CAM Shop: Tight Tolerance Design Tips
After you finish your design, it winds up in the hands of people like Mark Thompson, the man who runs the CAM department at Prototron Circuits in Redmond, Washington. He sees CAD data firsthand, and often has to address errors and inconsistencies in PCB designs. For this issue, we asked Mark to discuss the today’s tight tolerances, some of the problems they can cause PCB designers, and what designers can do when dealing with shrinking features.
Changing the World of PCB Rapid Prototyping
Tony Tung is a recent graduate from Taiwan who has come up with a new way for PCB designers and makers to create breadboards using printed paper circuits. I caught up with Tony at the recent San Mateo Maker Faire and sat down with him to learn more about this project.
Tim’s Takeaways: The Basics of Hybrid Design, Part 3
The world of hybrid design is growing, and we have lots of hybrid-specific functionality built into our software that helps designers meet and conquer the unique hybrid design requirements that they are faced with. And yet many designers out there (and I used to be one of them) have no idea what is meant when people start talking about hybrid design.
EDA Tools: Automation vs. Control
Stephen V. Chavez, CID+, is currently the lead PCB designer for the Electronic Systems Center division of UTC Aerospace Systems (UTAS). He's also a frequent speaker at the IPC APEX EXPO Design Forum. I caught up with Stephen and asked for his thoughts on the EDA tools of today, and whether he’d prefer to have more control vs. more automation.
Designers and Design Engineers: Two Sides of the Same Coin
Andy and Sue Critcher have been the lead designers at Total Board Solutions Limited, a UK-based design bureau, since its founding in 1998. I asked Andy to share his opinion about the friction between some PCB designers and their engineers, and what can be done to improve communications between these groups.
RTW IPC APEX EXPO: Geek-A-Palooza Coming to S. California May 12
Steve Williams sits down with Geek-A-Palooza founders Tara Dunn and Judy Warner to discuss their upcoming event in Irvine, California on May 12. The Geek-A-Palooza held in Minneapolis last year drew over 300 PCB designers, fabricators, assemblers and suppliers. Tara and Judy explain why this is not just another boring technical talk, and attendees will definitely enjoy themselves.
IPC APEX EXPO: Isola Introduces New Products, Increases R&D
Ed Kelley, VP of global technology, sits down with Guest Editor Dan Beaulieu at IPC APEX EXPO to discuss the company's plans for the future. The company is launching new low-loss laminates and increasing its R&D activities around the globe. He also explains why Isola often works with designers at OEMs.
IPC APEX EXPO: New Arlon Materials Address Design and Fab Challenges
Brad Foster, VP and general manager of Arlon, discusses some new laminates and pre-pregs that help designers and fabricators address a variety of challenges. He explains how Arlon works with customers to help them with stack-ups and other issues.
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).
What’s New at DownStream?
Since its founding in the uncertain days of 2002, DownStream Technologies has made a name for itself with its line of PCB design post-processing tools. Founder Rick Almeida gives us an update on the latest innovations at DownStream, and he discusses some of the challenges and trends he sees in the PCB design segment.
Designers Notebook: Flexible and Rigid-Flex Circuit Design Principles, Part 3
This installment of "Designers Notebook" will focus on methods for specifying base materials, and also address copper foil variations and fabrication documentation. It is important to research the various products in order to choose the one that best meets the design requirements.
Enhancing Thermal Performance of CSP Integrated Circuits
In order to meet size and weight requirements, constraints of portable electronic designs often force PCB designers to reduce the size of components and PCB real estate area. To meet these demands, the use of CSP packages to shrink the PCB area needed is a common change in designs. As a result of the reduction of total PCB area, the available options to move heat and route high-power PCB traces is also reduced. Furthermore, the thermal performance cannot be matched when a QFN is compared to an equivalent CSP package.
The Shaughnessy Report: Doing My Part for Medical Electronics
One interesting aspect of having hernia surgery recently was the number of PCBs in the operating room. I’ve never seen so many electronic devices together in my life. I saw one Agilent monitor, and a bunch of others with names I couldn’t make out. It reminded me of the IT room in most companies. I guess they had to be set up to handle routine surgery like mine, and the not-so-routine operations as well. Medical electronics is doing fine, no doubt.
American Standard Circuits: Leading the Way in Medical Electronics
When it comes to innovative fabricators, American Standard Circuits is always at the front of the pack. Naturally, when Editor Andy Shaughnessy asked me to interview a fabricator about PCBs for the medical market, ASC was the one company that immediately came to mind. I spoke with CEO Anaya Vardya about fabricating medical PCBs, the medical electronics market, and the future of this fast-growing segment.
Innovative Circuits Sees Healthy Medical Market
Medical electronics is one of the fastest growing segments of our industry. Alpharetta, Georgia-based Innovative Circuits is at the forefront of fabricating medical PCBs, both flex and rigid. I asked Innovative Business Development Manager Amir Davoud to give us a solid diagnosis of the world of medical PCBs.
IPC Designers Council Viewpoint: Mike Creeden
When covering the IPC Designers Council, one quickly learns that it’s the volunteers who make the train run on time. San Diego PCB CEO Mike Creeden, CID+, is one such volunteer, and as a member of the Designers Council’s Executive Board, he was a must-have for this issue. I tracked him down and asked him to give us a rundown of his involvement with the DC, and to explain why designers might want to get involved with their local DC chapters.
The Shaughnessy Report: Are You Drowning in Data?
Data management was so much simpler during the days of Mylar and Bishop Graphics tape. Data was handwritten. All you had to do was keep track of your paperwork and you were golden. Now, you’re all much more productive, but you have data coming out of your ears; slowly but surely, incrementally, data has become much more complicated. How do designers and engineers wind up managing all of this data? With kluged-together processes and software tools, and the occasional handwritten notes.
DownStream Takes on Data Documentation Management
Most designers will tell you that, as much as they enjoy laying out boards, they dislike the final data documentation step, which often involves various formats, including handwritten notes. Enter DownStream Technologies, a company founded 14 years ago to address the challenges related to post-processing the design. Senior Product Marketing Manager Mark Gallant recently discussed the company’s efforts to take the pain out of data documentation, even as data becomes more complex.
Why Autorouters Don’t Work: The Mindset!
Ask any group of PCB designers what they think of autorouters and the majority will say that they do not use them because they do not work. I have been battling this mindset for over 20 years now and it still persists today, even with the dramatic advances in routing technology. This way of thinking generally comes from those designers who use the entry-level tools. But even the most primitive autorouter may have some useful features. It’s all about changing that mindset of the designer and having a crack at it.
Pulsonix Poised to Take More EDA Market Share
Publisher Barry Matties met with Bob Williams, managing director and co-owner of Pulsonix, and Sales and Marketing Manager Tyrone Stephens to discuss the challenges facing the EDA tool market, and how they’re establishing this company in the global design tool marketplace.
The Gerber Guide, Chapter 3: The PCB Profile
The profile defines a simple region in the 2D plane. The proper way to do this is to specify a closed contour: The inside of the contour is the PCB, and the outside is not. It is that simple. Note that such a simple region is solid, without holes. By definition then, a profile cannot have holes intentionally placed within it. These are superfluous and represent an unnecessary and complicated duplication given that drill holes are well defined in the drill/rout file. One can view cut-outs in a PCB as still part of the PCB, just as much as the drill holes are.
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.
Lightning Speed Laminates: Impact of Final Plated Finish on PCB Loss
A variety of plated finishes are used in the PCB industry. Depending on the circuit construction and other variables, the plated finish can cause an increase in PCB insertion loss. The plated finish used on the outer ground planes of a stripline circuit have minimal or no impact on insertion loss. However, microstrip or grounded coplanar waveguide circuits, which are common on the outer layers of multilayer high-frequency PCBs, can be impacted by the plated finish for increasing the insertion loss.
The Readers Speak: Tips on Accelerating your Design Cycle
This month, in addition to publishing feature articles by well-known experts in the field, we decided to collect feedback from the readers—PCB designers and engineers working in the trenches each day. We asked our readers to provide their favorite tips, tricks, and techniques for speeding up the PCB design cycle. Here are 10 tips for cutting your design time, courtesy of designers just like you.
The Shaughnessy Report: Squeezing Seconds Out of the Design Cycle
When you’re designing a board, time is always your enemy. That’s what we learned when we surveyed our readers recently. PCB designers said that time pressure was one of their least favorite parts of the job, and in some cases, they were ready to retire just to avoid design cycle challenges. I imagine that many of you near retirement, and that’s quite a few of you, feel the same way.
Top Gear: PADS Professional Road Test
In this column, Barry Olney test drives the newest version of the Mentor Graphics PADS Professional EDA tool. "Based on Xpedition technology, PADS Professional is a major improvement over the previous PADS suite of tools. utilizes xDX Designer as the front-end design entry tool. The latest routing technology is fast, smooth to drive, and hugs the corners well, with all the horsepower you need for the most demanding design."
Leo Lambert on EPTAC's Customized Training Plans
Andy Shaughnessy interviewed Leo Lambert, vice president and technical director of EPTAC, at SMTA International. Leo Lambert, vice president and technical director of EPTAC, explains how the New Hampshire-based company continues to provide customized training and IPC certification offerings, including its IPC Certified Interconnect Designer (CID) and CID+ classes.
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.
Physics of Failure Durability Simulations for Automotive Electronics
Automotive electronics systems are becoming increasing complex and essential for the proper, safe operation of cars and trucks. Vehicle controls for basic operation and safety functions are increasingly being implemented by electronic modules. The ability of these electronic systems to function reliably is becoming a greater aspect of vehicle safety as was dramatically demonstrated by the 2009–2011 recall of over 9 million Toyota vehicles for unintended acceleration issues.
Mentor Graphics Helps Bridge Gap Between PCB and RF
Recently, Publisher Barry Matties met with Per Viklund, the director of IC packaging and RF product lines at Mentor Graphics, and Alex Caravajal, business development manager with Mentor. They discussed the challenges facing PCB designers working with RF and microwave technology, and Mentor’s efforts to help reduce the RF design cycle time.
EMA Design Automation Connecting the Data with Arena PLM Software
During IPC APEX EXPO 2015, Guest Editor Kelly Dack sat down with Chris Banton, marketing manager for EMA Design Automation to discuss EMA’s recent partnership with PLM software provider Arena Solutions. Banton explains how the alliance benefits companies that use both platforms, and why more and more CAD tool users are also taking advantage of PLM.
Isola Launches Low-loss Laminate for 100 GB Ethernet Apps
I-Connect007 Technical Editor Pete Starkey and Isola’s Fred Hickman, senior director of high-speed digital products, spent time at IPC APEX EXPO 2015 talking about Isola’s recent launch of a low-loss, low-skew laminate prepreg. Hickman explains that the new material, Chronon, will be one of the enablers of 100GB Ethernet applications.
Cirexx Introduces Eclisp, An Alternative to Co-fired Ceramics
Al Wasserzug, SR Business Development Exec at Cirexx, talks about their new product, Eclisp. Developed in conjunction with Lockheed Martin, Eclisp is an alternative to co-fired ceramics and used to evacuate heat very efficiently with a low CTE. Wasserzug gave a paper on the new technology at IPC APEX EXPO.
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