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A strong design constraint strategy carefully balances a wide range of electrical and manufacturing trade-offs. This month, we explore the key requirements, common challenges, and best practices behind building an effective constraint strategy.
All About That Route
Most designers favor manual routing, but today's interactive autorouters may be changing designers' minds by allowing users more direct control. In this issue, our expert contributors discuss a variety of manual and autorouting strategies.
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The Five Most-read Design007 Articles of 2022
December 27, 2022 | Andy Shaughnessy, Design007 MagazineEstimated reading time: 2 minutes

Each December, we like to look back at the most popular articles of the past 12 months. You never know which article is going to blow up like a Blake Shelton album.
So, put on your ugliest holiday sweater and prop up that iPad. For your holiday enjoyment, here’s a blast from the past: the top five most-read Design007 articles of 2022.
Ventec’s Book on Thermal Management: The Summer Sequel You’ve Been Waiting For
The I-Connect007 eBooks have been moving like hotcakes, and Ventec’s 2022 offering got a lot of eyeballs on the page. Co-written by Ventec’s Didier Mauve and Robert Art, The Printed Circuit Designer’s Guide to… Thermal Management with Insulated Metal Substrate, Volume 2 was the second in the series, and PCB designers snapped it up. This article about the book launch was the most-read Design007 article of the year.
High-Voltage Circuit Design Guidelines and Materials
More of our readers seem to be entering the high-voltage arena lately, and this article by Celso Faia and Davi Correia of Cadence Design Systems rode a voltage spike into our top five. As they point out, a lot of high-voltage issues can be precluded early in the design cycle—if you know what you’re doing. Check it out.
Flexible Hybrid Electronics Design: Reducing Time to Market
Flex and rigid-flex design has been a hot topic for a few years, and Sean Nachnani’s article on flexible hybrid design flexed its biceps all the way into our five most-read items. NextFlex is leading much of the research in this space, and they’ve published a variety of articles this year. As we’ve seen, many of our readers are being forced into flex for one reason or another, and flex hybrids are making inroads into this segment now.
Kris Moyer Discusses New IPC Role
There’s an old saying in business-to-business publishing: People like reading about other people, and it shows. Our interview with IPC design instructor Kris Moyer was the most popular PCB design interview of 2022. More young people are entering this segment, and designers and design engineers are yearning for cutting-edge design education.
Altium Focusing on Educating Designers of Today and Tomorrow
Altium has been working with the educational community for years, providing EDA software to universities and holding educational events such as AltiumLive and Altium Education. This interview with Altium VP of Education Rea Callender and consultant Zach Peterson shot up into our most-read earlier this year. Education may be the hottest of the hot topics in PCB design now.
Suggested Items
Digital Twin Concept in Copper Electroplating Process Performance
07/11/2025 | Aga Franczak, Robrecht Belis, Elsyca N.V.PCB manufacturing involves transforming a design into a physical board while meeting specific requirements. Understanding these design specifications is crucial, as they directly impact the PCB's fabrication process, performance, and yield rate. One key design specification is copper thieving—the addition of “dummy” pads across the surface that are plated along with the features designed on the outer layers. The purpose of the process is to provide a uniform distribution of copper across the outer layers to make the plating current density and plating in the holes more uniform.
Meet the Author Podcast: Martyn Gaudion Unpacks the Secrets of High-Speed PCB Design
07/10/2025 | I-Connect007In this special Meet the Author episode of the On the Line with… podcast, Nolan Johnson sits down with Martyn Gaudion, signal integrity expert, managing director of Polar Instruments, and three-time author in I-Connect007’s popular The Printed Circuit Designer’s Guide to... series.
Showing Some Constraint: Design007 Magazine July 2025
07/10/2025 | I-Connect007 Editorial TeamA robust design constraint strategy balances dozens of electrical and manufacturing trade-offs. This month, we focus on design constraints—the requirements, challenges, and best practices for setting up the right constraint strategy.
The Shaughnessy Report: Showing Some Constraint
07/14/2025 | Andy Shaughnessy -- Column: The Shaughnessy ReportWhen we first decided to cover strategies for setting PCB design constraints, one designer we spoke with said, “They’re not really constraints; they’re more like guardrails that prevent your design from going off a cliff.”
Elementary, Mr. Watson: Rein in Your Design Constraints
07/10/2025 | John Watson -- Column: Elementary, Mr. WatsonI remember the long hours spent at the light table, carefully laying down black tape to shape each trace, cutting and aligning pads with surgical precision on sheets of Mylar. I often went home with nicks on my fingers from the X-Acto knives and bits of tape all over me. It was as much an art form as it was an engineering task—tactile and methodical, requiring the patience of a sculptor. A lot has changed in PCB design over the years.