Reading time ( words)
In a recent Design007 Survey, we asked the following question: What is the most important feedback that you receive after your board is manufactured? Here are just a few of the answers, edited slightly for clarity.
Karl Bates, ConnectPCB: Clearance is less than I expect, copper balance, and thieving.
Chand Basha M, Anora Semiconductor: We could not plate the board to required plating thickness. We had to reduce few pad sizes to adjust the fabrication process. A few mechanicals in the design are altered slightly due to capability issues.
Jim Pierce, Axiom Electronics: Impedance specifications, testing results, and documentation.
Kris Moyer, IPC
In today’s ever-shrinking world of electronics designs, the use of BGA parts with very fine pitch features is becoming more prevalent. As these fine-pitch BGAs continue to increase in complexity and user I/O (number of balls), the difficulty of finding escape routes and fan-out patterns increases. Additionally, with the shrinking of silicon geometry leading to both smaller channel length and increased signal integrity issues, some of the traditional BGA escape routing techniques will require a revisit and/or adjustment to allow for not only successful fan-out, but also successful functioning of the circuitry of the BGA design.
Nolan Johnson, I-Connect007
Nolan Johnson recently met with Alun Morgan, technology ambassador at Ventec, and Ventec COO Mark Goodwin to discusses the industry’s determination to cling to outdated processes and standards, and some potential consequences. To maintain efficiency and keep pace with the market’s newest entries in Asia, Alun and Mark believe that legacy companies in the West must be open to challenging conversations that will require questioning old practices and revising those practices toward sustainability.
Patrick Crawford, IPC
Last year, IPC held its first-ever design competition at IPC APEX EXPO in San Diego. PCB designers from around the world competed in a series of heats during the months before the show, culminating in a showdown on the show floor between the top three finalists. Rafal Przeslawski, now with AMD, took home the top prize last year. This year, the competition is back for its sophomore year. I asked Patrick Crawford, manager of design standards and related programs for IPC, to “layout” the details on the design contest, including lessons learned in 2022 and what’s new for the 2023 competition.