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BOOK EXCERPT: The Printed Circuit Designer’s Guide to... DFM Essentials, Introduction
October 16, 2024 | I-Connect007 Editorial TeamEstimated reading time: 1 minute

Introduction
One of the biggest challenges facing printed circuit board designers is properly understanding the cost drivers in the PCB manufacturing process, particularly the manufacturing of advanced technology PCBs.
Design for Manufacturing (DFM) is defined as the practice of designing printed circuit boards that meet not only the capabilities of the customer’s assembly manufacturing process, but also the capabilities of the board fabrication process to provide the highest reliability at the lowest possible cost.
The guidelines offered in this book are based on both ASC recommendations and IPC standards and apply to standard to advanced technology PCBs. UHDI technology may require violating many of the guidelines included within. It is also understood that some of these guidelines may require adjustment based on the material set, fabricator processes, and other design constraints.
While not a substitute for early design engagement with the PCB fabricator, in this book the reader will learn about these cost drivers (from the PCB manufacturer’s perspective) and the design decisions that will impact product reliability and help companies “design for success.”
Visit the I-Connect007 library to continue reading The Printed Circuit Designer’s Guide to DFM Essentials.
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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
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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?