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Book Excerpt: 'An Introduction to The Printed Circuit Designer’s Guide to… Stackups'

To give readers a sample of 'The Printed Circuit Designer’s Guide to... Stackups—The Design within the Design,' by Bill Hargin, we are providing the book's introduction. He writes, "Another book about stackups? If you’re asking this question, I’d like to know the book you’re thinking of, as I was looking for it a few years back. I have a pretty good PCB signal integrity (SI) library, and I’ve only found one chapter on stackup design so far."

What Happens When You Assume?

What is design with manufacturing and what does true DWM look like in operation? In this interview, I-Connect007 columnist Dana Korf explains what it will take to achieve total communication among all the stakeholders in the PCB development cycle. He also stresses the need for everyone involved in PCB design and manufacturing to stop making assumptions, even at the risk of being labeled as “that guy” who asks too many questions.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

The summer is heating up, and our news this week is on fire, literally. Eltek has resumed making deliveries after a fire at their facility in Petach-Tikva, Israel. There’s never a dull moment in this industry. And we have some good news: EIPC’s conferences are now live events again, and Editor Pete Starkey is back in the saddle, bringing us a review of the two-day conference. I know Pete was getting tired of sitting around his house and watching these events on video.

Rambus Driving a CXL Memory Option

In this interview with Arjun Bangre, director of product for high-speed interface IPs for PCI Express and CXL at Rambus, the discussion revolves around new developments in CXL, PCI Express, and interoperable IP solutions that Rambus has developed.

Master the Art of Communication With Manufacturers

As mentioned in the May issue of Design007 Magazine, design is performed, at times, in a vacuum. But it doesn’t have to be that way. Whenever circumstances allow, design should be performed by communicating with all stakeholders throughout the design process, hence the emphasis on the word with in DWM. Communication can occur through personal correspondence such as email and voice conversations or through more formal design meetings—in person or through videoconferencing. No matter which means of communication you prefer, it’s important to communicate early and often with stakeholders involved in the downstream processes as you bring your project to realization.

EIPC Summer Conference 2022: Day 2 Review

Örebro, Sweden on June 15 brought a bright and early start to Day 2 of the EIPC Summer Conference for those who had enjoyed the previous evening’s networking dinner, but had resisted the temptation to over-indulge or to carry on their long-awaited catch-up conversations with old friends into the small hours. All but a few were in their seats for 9 a.m., awake and attentive for Session 4 of the conference, on the theme of new process technologies, moderated by Martyn Gaudion, CEO of Polar Instruments.

The U.S. Economy Needs the Bipartisan Innovation Act and the PCB Act

In this IPC-created interview between Dale Curtis, IPC Advocacy Communications and Chris Mitchell, IPC VP Global Government Relations, the importance of the semiconductor and PCB manufacturing legislation moving through US Congress is highlighted.

EIPC Summer Conference 2022: Day 1 Review

At last, a live EIPC conference and this time in the Swedish city of Örebro, “where history and contemporary culture converge,” a pleasant and convenient location for an event that included a privileged visit to the Ericsson facility in Kumla. Around 100 delegates made the journey and the Örebro Scandic Grand Hotel was an excellent conference venue for the June 14-15 conference.

Altimade Puts Designers and Manufacturers Together

Despite all of the talk about the need for communication between designers and manufacturers, many PCB designers still do not talk with their manufacturers for a variety of reasons. Altium and MacroFab aim to change this dynamic. In this interview, Ted Pawela, chief ecosystem officer of Altium and head of Altium’s Nexar Business Unit, and MacroFab CEO Misha Govshteyn, discuss the new Altimade manufacturing service that Altium is introducing in partnership with MacroFab. Ted and Misha provide an overview of the Altimade process, how it links designers to fabricators, assembly providers, and component distributors, and they explain how it could pave the way for true design with manufacturing, or DWM.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

Market news was certainly big this week. While the U.S. stock market continues make some large swings, the PCB and PCBA are doing their own dance with the numbers. We’re still feeling the effects of the pandemic, but it seems to be more about playing catch up. Still, the industry is showing some instability, both in positive and negative ways.

Ventec’s Book on Thermal Management: The Summer Sequel You’ve Been Waiting For

I-Connect007 is excited to announce the release of the second title in Ventec’s series on thermal management, "The Printed Circuit Designer’s Guide to… Thermal Management with Insulated Metal Substrates, Volume 2." This second volume covers the latest developments in the field of thermal management, particularly in insulated metal substrates, using state-of-the-art products as examples, and focusing on specific solutions and enhanced properties of IMS.

Assemblers Play the ‘Revise or Wait’ Game With Designers

Nolan Johnson recently spoke with Duane Benson at Milwaukee Electronics and Screaming Circuits. Duane was pointing out a trend in moving designs into production, which he termed “revise or wait.” This excerpt provides a preview of our exploration of similar topics involving supply chain issues, lead times, and proceeding forward despite the supply challenges.

The Survey Said: Why Don’t You Know Your Fabricator?

When we want to find out what challenges our readers are facing, we just ask. And they don’t mind sharing—the good, the bad, and the ugly. In a recent survey, we asked our PCB designer readers, “Why don’t you know who is going to manufacture your boards?” Here are some of more interesting replies we received, edited slightly for clarity. Do you see yourself in these replies?

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

We’re still not officially into summer yet, but Atlanta is bringing the heat, baby! It’s hit 97 degrees a few times this week, and I now have a fan aimed right at my face. At least it’s nice and humid too. I’m glad I don’t wear make-up. And it’s been a hot week in the circuit board community. This week, Eltek reported a fire at a board shop in Israel, and Flex committed to building a 145,000-square-foor facility in Jalisco, Mexico to serve the electric and autonomous vehicle segment.

Producing Diverse Designs in Concert With Manufacturing

There is a new acronym bubbling up in the design world: DWM, which stands for “design with manufacturing.” Why is this different than design for manufacturing, or DFM? With DWM, the emphasis is on integration between the design team and the manufacturers during the design process. DWM is much more than that. We are tasked with producing designs that meet various technical requirements, yet are cost-effective and manufacturable. We provide this service to hundreds of customers who have varying degrees of processes, tools, and manufacturing partners. Given this diversity, we have recognized the importance of designing with manufacturing to achieve the product development goals of manufacturability and technical excellence.

I-Connect007 Editor’s Picks: Five Must-Reads for the Week

PCB fabrication is back in the news this week and posting high readership numbers as well. Among the most-read news, we see industry leaders changing roles, capital equipment shipment milestones, operational cost efficiencies, and, last but not least, cybersecurity.

Passionate People Can Do Fantastic Things

Electrical engineer Marshall Massengill is the first to admit that he has a pretty sweet gig. Marshall serves as a mentor for the Zebracorns, a robotics team based at a STEM-oriented high school in North Carolina. And he’s not just a mentor: He’s also a graduate of North Carolina School of Science and Mathematics, and a former member of one of the earliest robotics teams organized by FIRST. We recently spoke with Marshall about his work with the FIRST robotics team, and what it’s like teaching PCB design to juniors and seniors in high school.

The Survey Said: Designing Around Missing Data

One of the best tools we have for keeping our fingers on the pulse of the industry is the reader survey. When we want to find out what’s going on, we just ask. Fortunately, our readers are not a shy bunch of folks. They don’t mind sharing—the good, the bad, and the ugly. In a recent survey, we asked our PCB designer readers, “What missing information or data (impedance requirements, library data, etc.) do you find yourself having to ‘design around’?”

Designing in a Vacuum Q&A: Nick Barbin

Optimum Design Associates President Nick Barbin has worn a lot of hats in this industry, from PCB designer to EMS company owner. We asked Nick to share his thoughts on what it’s like to design in a vacuum, while offering some strategies for escaping the vacuum.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

Things are heating up in the world of PCB design and manufacturing as well. In the past week, we published quite a bit of news—some good, some not so good. Some of the news is mixed, as we see with the EMS industry shipments rising YOY in April, but falling from the previous month. It’s nice to see NASA investing in American small businesses, but they didn’t really have a choice, did they?

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

I know I’m not alone in this behavior: Car advertisements during television commercial breaks are as good as invisible to me, until I’m thinking about getting a new car. Only then do I notice them. Rather, I see each one with all my attention and being. If that extends into our industry, then everybody must be itching to pick up some new equipment. This week’s must-reads includes a smattering of new product announcements, along with the news of the IPC European subsidiary.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

This week, we bring you an article about manufacturing training for veterans, and a review of a great signal integrity webinar. IPC honors its A-Teams with the coveted Golden Gnome Awards, and Technica discusses various ways for fabricators to increase ROI. Dan Beaulieu has a review of a really cool book: Back to Human—How Great Leaders Create Connection in the Age of Isolation. In spite of all the meetings on Teams and Zoom, it’s easy to feel disconnected. But great leaders find a way to foster that connectivity.

Altium Focusing on Educating Designers of Today and Tomorrow

We recently spoke with Rea Callender, Altium’s vice president of education, and Zach Peterson, founder of Northwest Engineering Solutions and a technical consultant for Altium’s educational programs. They discussed Altium’s curriculum—what drives the content development, the goals of their programs, and why there’s never been a better time to continue your PCB design education.

Pulsonix Collision Avoidance to Bring Mechanical Capabilities Into ECAD

The I-Connect Editorial Team recently spoke with Bob Williams, managing director of Pulsonix. He discussed some of the new features in the upcoming version of the Pulsonix PCB design tool, Version 12, including collision avoidance and other 3D options that allow certain MCAD functions within the ECAD environment.

A Textbook Look: Signal Integrity and Impedance

Believing that I knew a bit about signal integrity and controlled impedance, I was pleased to take the opportunity to connect with an educational webinar that I hoped would extend my knowledge. In the event I was surprised at how little I actually knew, and the webinar was an excellent learning opportunity. The webinar was introduced and expertly moderated by Anna Brockman of Phoenix Contact in Germany.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

The big news in the industry this week was the new bill introduced to the U.S. Congress in support of the PCB manufacturing industry. The Supporting American Printed Circuit Boards Act of 2022, which was introduced by Reps. Anna Eshoo (D-CA) and Blake Moore (R-UT), incentivizes “purchases of domestically produced PCBs as well as industry investments in factories, equipment, workforce training, and research and development.” The bill is a PCB-oriented complement to the semiconductor-oriented CHIPS Act of 2021.

Designing in a Vacuum Q&A: Mark Thompson

I-Connect007 Columnist Mark Thompson of Out of the Box Manufacturing has been in CAM engineering for decades, and he’s also worked as a PCB designer, so we knew he would have a few things to say about working in a vacuum. As he explains, the designer isn’t the only stakeholder in the process who feels like he’s working inside the dust bag of a Hoover upright.

Designing in a Vacuum Q&A: Carl Schattke

Not long ago, I caught up with Carl Schattke, CEO of PCB Product Development LLC and a longtime PCB designer, for his thoughts on “designing in a vacuum.” As Carl points out, if you follow PCB design best practices, knowing the identity of your fabricator is not a “must-have.” He also offers some communication tips for discovering the information you do need, including one old-fashioned technique—just asking for it.

Tips for Designing in—and Escaping From—the Vacuum

We asked Monsoon Solutions VP of Engineering Jen Kolar if she had any thoughts on “designing in a vacuum,” and her response was, “Absolutely!” In this wide-ranging discussion, Jen and Senior PCB Engineer and Director of Designer Development Cory Grunwald share some tips and techniques for designing PCBs in a vacuum, and a few methods for getting out of the Hoover’s dust bag. As Cory points out, “In the end, the communication is going to happen anyway. It’s just a matter of whether it happens at the end or in the beginning.”

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

This week, we have some M&A news from Summit Interconnect, and a variety of columns. Chris Bonsell discusses the lack of preventive maintenance planning in PCB manufacturing, and Kelly Dack lays out some solder mask guidelines for PCB designers. Duane Benson helps make sense of the quoting process in a time of 50-week lead times, and Dan Beaulieu has a great review of a book about how shareholder policies have caused many of the problems we see in corporations today.

Additive Manufacturing Requires Additive Design Techniques

Although I am not a designer by trade, I want to share my thoughts on what additive manufacturing means for designers, especially how it relates to solder mask. In this article, you will learn what topics I feel are the most important to address.

I-Connect007 Editor's Choice: Five Must-Reads for the Week

It certainly seems that our times continue to be interesting, don’t they? Just how many different flavors of supply chain disruption can we come up with? Investment on the supply side needs to increase, but the size of the labor force needs to increase even more, if we want to accomplish the task of the buildout itself, let alone running the facilities properly.

DFM 101: Solder Mask and Legend

One of the biggest challenges facing PCB designers is understanding the cost drivers in the PCB manufacturing process. This article is the latest in a series that will discuss these cost drivers from the PCB manufacturer’s perspective, and the design decisions that will impact product reliability.

Designing PCBs With Additive Traces

Advances in technology have been clear to see within the component packaging industry, as the ball grid array (BGA) package sizes reduce from 1.0 mm pitch to 0.8 mm, 0.4 mm, and even beyond. However, while these improvements have occurred with component packages, it has become increasingly more difficult to break out and route the dense circuitry associated with these parts. Currently, the high-density interconnect (HDI) method typically used for the breakout of such parts has been to create the smallest possible subtractive-etched traces with microvias to allow for connections and escapes on the innerlayers of your PCB.

Designing Additive and Semi-Additive PCBs

With components getting smaller and electronic devices becoming more compact, we are reaching the physical limits of the typical etched fabrication processes. To address these limits, new additive and semi-additive processes are being developed to fit into the current fabricators’ production lines without too much disruption or extra cost.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

It’s been a busy week in this industry, and we have news and articles from the PCB design, fabrication, and assembly communities. The roller coaster ride continues, with whiplash-inducing news from IPC about March North American shipment—they’re up from February but down from the same period a year ago.

AltiumLive 2022: Tips and Tricks for Supply Chain Management

I recently spoke with Paul Ratner, a senior account executive at IHS Markit, about his AltiumLive presentation, which is now available online. Paul discusses some of the takeaways from his presentation, and he offers some advice for technologists who are grappling with long lead times on components, as well as some predictions for the rest of 2022 and beyond.

The Printed Circuit Designer’s Guide to… Stackups: The Design within the Design

If you have ever contemplated crosstalk, eye closure, power loss, or a list of other issues defined in this textbook, then you also need to understand what, why, and how stackups can and will impact your circuit’s performance. After all, the stackup is one of the few things that directly touches every single part of your design; therefore, you must set yourself up for the highest probability of success by establishing a strong foundation through a well-designed stackup.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

Welcome to April 15, everyone! There are reasons we tend to cover topics in a continuous conversation. First, there are always developments and news in the industry. Second, you dear readers respond to that content by reading it. This week the news items that drew the most reader interest verify that our industry has ongoing interest in government involvement in industry infrastructure, supply chain issues, cybersecurity, and new technologies like additive in fabrication.

Cadence System Design Solutions Guide Available Now

You already have the I-Connect007 book "The System Designer's Guide to... System Analysis", written by Brad Griffin of Cadence Design Systems. Now, download the bonus companion guide, "The Cadence System Design Solutions Guide" for solutions to all your complex system analysis needs. Put Cadence’s expert knowledge into action!

Altium Invests in Future Designers

While at IPC APEX EXPO, I stopped by the Altium booth to visit with Rea Callender, vice president of education at Altium. Rea shared information about the company’s recent design competition for students around the world, as well as a new curriculum that is drawing interest from some unique locations.

A Definitive Review of New Expert Guide to High-Performance Materials

I am always surprised when a colleague produces a statement about PCB laminates that seems incorrect or out of date. This need not happen today as the specialists at Isola have written an excellent book about high performance materials, now available for download from I-Connect007. Author Michael Gay, a 25-year veteran of laminate manufacturing, meticulously guides readers through the most pertinent questions regarding rigid laminates. This is essential information for everyone, including the experts, because the materials and applications for laminates in printed circuits are constantly changing.

Additive Design: Same Steps, Different Order

We recently spoke with Dave Torp, CEO of Winonics, about the company’s additive and semi-additive processes and what PCB designers need to know if they’re considering designing boards with these new technologies. As Dave explains, additive design is not much different from traditional design, but the steps in the design cycle are out of order, and additive designers must communicate with their fabricators because so much of the new processes are still proprietary.

AltiumLive 2022 - Vince Mazur’s Supply Chain Advice: Always Have Alternatives

I had the chance to speak with Vince Mazur, a technical marketing engineer at Altium, about his AltiumLive presentation, “Avoiding Supply Chain Issues with Variants and Live Part Choices,” which is now available online. Vince discussed some of the high points of his talk, including the need for designers to pay closer attention to the supply chain than ever before, and to always have an alternative part or two as backup—just in case.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

Spring has definitely sprung, and the trade show season continues to roll right along. Managing Editor Nolan Johnson just returned from DesignCon 2022, and as he says in his review, the attendance was up from last year’s event, which had been at the McEnery Convention Center in the waning days of the pandemic. I hope we’re getting back to normal, whatever that means. This week, we have a few articles about Industry 4.0, as well as a column on setting your priorities. We have a cool article about methods for measuring the breakdown of resins during multiple thermal laminations, and a conversation with an EMS company president who realized that he was actually running a data collection firm that happened to make circuit boards. Can you say the same about your own company?

DesignCon 2022: Back to Business as Usual

It was something of a homecoming as DesignCon returned to the Santa Clara Convention Center this week for DesignCon 2022. It’s been two years since the last DesignCon was held in this venue just before the pandemic began. I attended DesignCon 2021 at the San Jose McEnery Convention Center in July of last year, and I could see a big improvement in attendance as DesignCon moved back into its usual venue.

AltiumLive 2022: Dwight Morse Offers a Supply Chain Primer

I recently spoke with Dwight Morse, channel marketing manager for SiliconExpert, about his AltiumLive presentation, “Getting the Information to Create Successful Designs Quickly,” which is available online now. Dwight offers advice to designers who are facing 50-week component lead times, and he discusses some of the trends he sees in the supply chain right now, including a view from the vantage point of the world’s top video game makers, who are having as much trouble finding parts as you are.

Does Copper Pour on a Signal Layer Decrease Signal-To-Signal Isolation?

Does putting a ground pour on PCB signal layers make the isolation better or worse? It can go either way, but with the proper knowledge and application, this technique will improve your designs. In this article, I’ll discuss how to simulate trace-to-trace isolation with true electromagnetic simulation software. We’ll also cover a variety of rules of thumb that can help you stay away from trouble.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

According to a quick look at history.com, “Some historians speculate that April Fools’ Day dates back to 1582, when France switched from the Julian calendar to the Gregorian calendar. In the Julian Calendar, as in the Hindu calendar, the new year began with the spring equinox around April 1.” All well and good, but why April Fools’? “People who were slow to get the news or failed to recognize that the start of the new year had moved to January 1 and continued to celebrate it during the last week of March through April 1 became the butt of jokes and hoaxes and were called “April fools.”

AltiumLive 2022: MacroFab Unites Design and Manufacturing in One Domain

I recently spoke with Joey Rodriguez, director of product management for MacroFab, which just announced a major partnership with Altium that brings supply chain information to Altium users much earlier in the design cycle. Joey and I discussed his AltiumLive presentation, now available online, which provides details about MacroFab’s efforts to “left-shift” supply chain information, and the need for designers to think holistically about the supply chain as early as possible in the design cycle.

Setting Goals for Your PCB Design Education

For our March issue of Design007 Magazine on planning your design education, we spoke with Bill Brooks of Nordson ASYMTEK, a long-time PCB designer, CID instructor, and fantastic sculptor. He is also one of the first to ever teach standalone PCB design courses in a college. After he earned his certification to teach the IPC CID workshops, Bill served as an adjunct instructor at Palomar College near San Diego, teaching beginning and advanced PCB design classes for 10 years. I asked Bill to share his thoughts on setting up a PCB design education career plan, and the need to stay on top of your game as a PCB designer.

AltiumLive 2022: Design for Availability

Andy Shaughnessy spoke with Rodrigo Contreras Lopez of SnapEDA about Rodrigo’s AltiumLive presentation, which is now available online. It’s a changing world, he says, and designers need to approach their designs from a different perspective: Creating designs with parts that may or may not be available now may just set up your design team and your customer for failure in a few years. Is Design For Availability going to enter the PCB design lexicon?

Thank You to the I-Connect007 Team

During IPC APEX EXPO, the I-Connect007 team works very hard to bring you several great interviews that will keep you up to date on the latest industry activity. This year, we had Nolan Johnson, Andy Shaughnessy, Pete Starkey, and Happy Holden of I-Connect007 in front of the cameras. We also send out a very special thank you to our guest interviewers, who sat in the I-Connect007 show floor studio to conduct many interviews. The list includes Tara Dunn, Dick Crowe, Joe Fjelstad, Steve Williams, and Kelly Dack. Their contributions are greatly appreciated.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

It’s been a crazy week, with lots of bad news coming out of Ukraine. (I’m a news junkie by trade, but I confess that some days I just unplug from the news completely to avoid overdosing on negativity.) And, as you might have guessed, this is all having ill effects on our electronics supply chain, which is already stretched thin. This is reflected in our IPC news item that shows an uptick in PCB sales in February, but a drop in bookings YOY, in part due to the trouble in Eastern Europe. But there’s positive news in this week’s top reads. We have a NextFlex article about an innovative flexible technology called flexible hybrid electronics (FHE) and a great interview by Dan Beaulieu. We also have a column by Travis Kelly, who discusses PCBAA’s efforts to lobby for American manufacturing in Washington. And last but not least, let’s welcome our two newest columnists, Paige Fiet and Hannah Nelson, who discuss their excitement about entering this industry.

Strategizing a Design Education Plan With John Watson

Altium’s John Watson is a veteran PCB designer and instructor, as well as a Design007 columnist. He also recently accepted a professorship at Palomar College in San Marcos, California, teaching basic and advanced PCB design. John and I recently discussed his thoughts on setting up a PCB design education strategy, the need to continue your design education for your entire career, and the kind of attitude that makes someone a successful PCB designer.

Flexible Hybrid Electronics Design: Reducing Time to Market

Emerging innovations in the flexible hybrid electronics (FHE) domain are enabling new applications across multiple industries due to their highly flexible structures and additive manufacturing processes. The smaller form factor, lighter weight, and conformal capabilities are ideal for IoT edge devices in health and fitness monitoring, military asset identification and tracking, automotive displays and sensors, aerospace radar, and soft robotics. Significant industry research led by NextFlex is optimizing the processes from design through manufacture for FHE products.

I-Connect007 Editor’s Choice: Five Must-Reads for the Week

This week seems jam-packed with holidays, both major and minor, doesn’t it? We started with “International Pi Day” on March 14. With all the obligatory pricing specials on most all things “pie” here in the U.S., suffice it to say, I’ve got a short stack bake-at-home pizza “pi” in my freezer, thanks to the one-day-only sales price of $3.14. Personally, I’m glad they didn’t make the promotional price = pizza diameter * Pi.

AltiumLive 2022: Alex Sapp on How to Create a Better BOM

I recently spoke with Alex Sapp, director of API commercial strategy at Octopart, about his AltiumLive presentation, “How Resilient is Your BOM?” In this interview, Alex details the takeaways of his class, and some tips and techniques for creating more reliable BOMs and dealing with the current supply chain uncertainties.

Book Excerpt: 'The Printed Circuit Designer’s Guide to… High Performance Materials', Chapter 1

Choosing the right material for your application can be a major challenge. These are “cost to performance” decisions that need to be made to select material that will meet the expected performance requirements and the desired cost targets. Selecting a material that meets cost targets but fails to perform in prototype development testing results in costly revision spins, cost increases and delays to market. Chapter 1 of this book helps readers understand what resin choices to make for optimal electrical performance.

Planning Your Design Education: Keep an Open Mind

Rea Callender is the new vice president of education for Altium. He brings a background in business development and entrepreneurship, along with experience in K-12 education. This seemed like a pretty good combination, so I asked Rea to share his thoughts on the best avenues for design education, as well as strategies for setting up a lifelong PCB design education plan.
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