Freedom CAD’s Expert PCB Design Tips, Part 1

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When you’re designing complex PCBs, knowledge truly is power. The more PCB design tips, tricks, and techniques you know, the better your cutting-edge designs will be. With that in mind, we’re bringing you a series of PCB design tips, courtesy of Freedom CAD Services.

Design Tip #1
Don’t make high-current traces too thin.

When a PCB trace carries more than the standard multi-hundred milliamps, it must have enough copper weight to handle the increased temperature. Use a trace width calculator to determine the proper value for your board.

Want to know more? Check out the entire library of I-Connect007 micro eBooks. Scott Miller, chief operations officer of Freedom CAD Services, is the author of the eBook The Printed Circuit Designer’s Guide to… Executing Complex PCBs. This book provides a set of guidelines for designing the most complex, high-speed PCBs right the first time, every time. This book is a must-read for anyone designing today's sophisticated printed circuit boards.

01/12/2021 | I-Connect007 Editorial Team

In this interview with the I-Connect007 Editorial Team, TTM’s Julie Ellis and Richard Dang drill down into stackup design, detailing some of the common stackup challenges that their customers face when designing for both prototype and volume levels, and offering advice to designers or engineers who are struggling with stackup issues. They also discuss why having too many different prepregs in a stackup can be asking for trouble, and how proper stackup design can optimize both the fabrication and assembly processes.

12/08/2020 | Anaya Vardya, American Standard Circuits

Heat cannot be efficiently exchanged with stagnant air surrounding a hot device; however, it can be transferred away from the electronic component to the PCB using thermal vias. A thermal via is a good conductor of heat that runs between the top layer and bottom layer of the PCB, dissipating heat through simple conduction. In simple terms, thermal vias are plated holes located under, or electrically connected to, a surface-mounted heat source on a PCB that allows heat transfer through the hole.

11/09/2020 | I-Connect007 Editorial Team

Andy Shaughnessy, Happy Holden, and Dan Feinberg recently met with James Hofer, general manager of Accurate Circuit Engineering, to discuss via design techniques and via reliability from the fabricator’s viewpoint. As Hofer explained, even with open lines of communication between the designer and the board shop, there are plenty of variables to contend with regarding proper via design, especially when working with PTFE materials.