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I-Connect007 Editor's Choice: Five Must-Reads for the Week

August 30, 2024 | Andy Shaughnessy, Design007 Magazine

There’s a lot going on in our industry right now. As you’ll see in today’s must-reads, there’s even innovation taking place in drill bit development. We also have articles on cutting costs during the design process, as well as a handy guide to each country’s tech sweet spots, and what it takes to thrive in this segment. Don’t miss our ode to the CAM department, which is where the rubber meets the road for every PCB. 

Asymmetric Hybrid Printed Circuit Board Design: Warpage Considerations

August 27, 2024 | Kaspar Tsang, Gause Hu, Jimmy Hsu, Aje Chang, Alan Sun, Brian Ho, Ryan Chang, and Thonas Su

The printed circuit board (PCB) accounts for a significant portion of the PCBA’s (printed circuit board assembly) BOM (bill of material) cost. Designs with hybrid PCB stackup are adopted to reduce the cost of the PCB by using less expensive laminate materials in layers that do not have routings for high-speed signals (e.g., power and ground layers). The conventional hybrid PCB stackup design is symmetrical in the middle. This engineering technique has been employed in the data center industry for quite some time. To extend the idea and optimize the purpose of hybrid PCB stackup design, the feasibility of an asymmetric hybrid stackup is currently being studied.

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