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Learning to Speak ‘Fab’
April 23, 2025 | Ray Fugitt, DownStream TechnologiesEstimated reading time: 1 minute

Over the years, I’ve seen many PCB designers make DFM mistakes. At DownStream, I work with design and fabrication, and sometimes it feels as if the two segments are speaking completely different languages. But once designers learn to speak “fab,” many of these DFM challenges disappear.
I taught a class at PCB East 2024, “The 21 Most Common Design Errors Caught by Fabrication (and How to Prevent Them),” with my co-presenter Mike Tucker of Millennium Circuits. At PCB West 2024, we presented an updated class, “10 (More) Common Errors in PCB Design and How to Catch Them.” Is this an evergreen topic?
Design007 Editor Andy Shaughnessy and columnist Kelly Dack attended our PCB West class, which was packed with designers and design engineers, and many of them had questions. When Andy asked me to contribute an article on the most common miscommunication errors made by PCB designers, I said, “Sign me up.”
You Know the Drill
Let’s start with the drill chart shown in Figure 1. It seems like a normal drill chart at first. But take another look. What is a “finished drill size” anyway? Do they mean hole size? What’s the difference?
To read this entire article, which appeared in the March 2025 issue of Design007 Magazine, click here.
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Brent Fischthal - Koh YoungSuggested Items
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Staying on Top of Signal Integrity Challenges
09/16/2025 | Andy Shaughnessy, Design007 MagazineOver the years, Kris Moyer has taught a variety of advanced PCB design classes, both online IPC courses and in-person classes at California State University-Sacramento, where he earned his degrees in electrical engineering. Much of his advanced curriculum focuses on signal integrity, so we asked Kris to discuss the trends he’s seeing in signal integrity today, the SI challenges facing PCB designers, and his go-to techniques for controlling or completely eliminating SI problems.
American Standard Circuits to Exhibit and Host Lunch & Learn at PCB West 2025
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ASM Technologies Limited signs MoU with the Guidance, Government of Tamilnadu to Expand Design-Led Manufacturing capabilities for ESDM
09/15/2025 | ASM TechnologiesASM Technologies Limited, a pioneer in Design- Led Manufacturing in the semiconductor and automotive industries, announced signing of Memorandum of Understanding (MoU) with the Guidance, Government of Tamilnadu whereby it will invest Rs. 250 crores in the state to expand its ESDM related Design-Led Manufacturing and precision engineering capacity. ASM Technologies will acquire 5 acres of land from the Government of Tamilnadu to set up a state-of-the-art design facility in Tamil Nadu's growing technology manufacturing ecosystem, providing a strong strategic advantage and long-term benefits for ASM.