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JULY 2021 I DESIGN007 MAGAZINE 11 gate break-in. e supply chain question drew some of the most varied responses: what are you doing to alleviate the component short- ages we're facing today? We also bring you our regular contributors: Barry Olney, Istvan Novak, Tim Haag, Matt Stevenson, Anaya Vardya, Kelly Dack, and Joe Fjelstad. And we have a great interview with Muhammad Irfan and Dan Williams of Whizz Systems. e world is starting to open again, hopefully for good. We'll be covering the live, in-person trade shows and conferences coming up in the next few months, such as DesignCon, PCB West, SMTA International, and IPC APEX EXPO. Hard to believe that I last flew on a plane in February 2020, flying back from two weeks in the Golden State covering DesignCon and IPC APEX EXPO 2020. at seems like a lifetime ago. Virtual shows are all well and good, but I'm looking forward to seeing you all in person again. DESIGN007 Andy Shaughnessy is managing editor of Design007 Magazine. He has been covering PCB design for 20 years. He can be reached by clicking here. We asked our readers to send in their ques- tions, and they responded with queries from across the spectrum: DFM, stackups, supply chain issue, education, signal integrity—you name it. We put these questions to our team of PCB designers and design engineers: Lee Ritchey, Carl Schattke, Rick Hartley, Heidi Barnes, Stephen Chavez, Eric Bogatin, Cherie Litson, Chris Young, and Happy Holden. As you might expect, these experts oen had slightly differ- ent takes on the same question, and occasion- ally they contradicted each another entirely. Oen, there are no hard, fast answers to a particular PCB design problem. Ask 20 design instructors how they would solve a particular problem, and you might get 20 possible sce- narios. ere's a lot of nuance in this segment of the industry, which is what makes this such a fascinating beat for me to cover. (In my previ- ous life as a crime reporter, there wasn't much nuance. I usually focused on whether a suspect was dead, in jail, or out on bond, and not much else.) So, this month, we bring you an entire issue devoted to Q&A. Check it out; there's so much here that I bet you'll learn something, even if you started designing boards before the Water-

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