Nolan’s Notes: Finding Your Sweet Spot
Standard of Excellence: Delivering Excellence—A Daily Goal
Knocking Down the Bone Pile: Tin Whisker Mitigation in Aerospace Applications, Part 3
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.
Share on:
Suggested Items
DownStream Acquisition Fits Siemens’ ‘Left-Shift’ Model
06/26/2025 | Andy Shaughnessy, I-Connect007I recently spoke to DownStream Technologies founder Joe Clark about the company’s acquisition by Siemens. We were later joined by A.J. Incorvaia, Siemens’ senior VP of electronic board systems. Joe discussed how he, Rick Almeida, and Ken Tepper launched the company in the months after 9/11 and how the acquisition came about. A.J. provides some background on the acquisition and explains why the companies’ tools are complementary.
Elementary Mr. Watson: Retro Routers vs. Modern Boards—The Silent Struggle on Your Screen
06/26/2025 | John Watson -- Column: Elementary, Mr. WatsonThere's a story about a young woman preparing a holiday ham. Before putting it in the pan, she cuts off the ends. When asked why, she shrugs and says, "That's how my mom always did it." She asks her mother, who gives the same answer. Eventually, the question reaches Grandma, who laughs and says, "Oh, I only cut the ends off because my pan was too small." This story is a powerful analogy for how many PCB designers approach routing today.
Connect the Dots: The Future of PCB Design and Manufacturing
07/02/2025 | Matt Stevenson -- Column: Connect the DotsFor some time, I have been discussing the increasing complexity of PCBs and how designers can address the constantly evolving design requirements associated with them. My book, "The Printed Circuit Designer’s Guide to… Designing for Reality," details best practices for creating manufacturable boards in a modern production environment.
Siemens Turbocharges Semiconductor and PCB Design Portfolio with Generative and Agentic AI
06/24/2025 | SiemensAt the 2025 Design Automation Conference, Siemens Digital Industries Software today unveiled its AI-enhanced toolset for the EDA design flow.
Cadence AI Autorouter May Transform the Landscape
06/19/2025 | Andy Shaughnessy, Design007 MagazinePatrick Davis, product management director with Cadence Design Systems, discusses advancements in autorouting technology, including AI. He emphasizes a holistic approach that enhances placement and power distribution before routing. He points out that younger engineers seem more likely to embrace autorouting, while the veteran designers are still wary of giving up too much control. Will AI help autorouters finally gain industry-wide acceptance?