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Three Things to Improve High-Speed PCB Signoff, Part 2

September 27, 2023 | Brad Griffin, Cadence Design Systems

Another challenge for SerDes is losses within the channel design. At high speeds, dielectric material can be very lossy, making the appropriate selection of the right material, length, etc., critical for the channel. Many questions about stackup, trace widths, and height from the ground plane need to be defined up front. Simulating a signal with a topology explorer tool extracted from the design can be used to set up and run sweep parameters and push min/max length/spacing values into the Allegro schematic constraint manager (system capture).

Flexible Thinking: Unlocking the Key to Rigid-flex Design Success

September 26, 2023 | Joe Fjelstad, Flexible Thinking

Despite what some seem to believe, rigid-flex circuits are not a new technology. In fact, they are more than a half-century old. At the time of the invention, my friend Thomas Sterns was working at Sanders Associates, the pioneering flex circuit manufacturer. Like many products in the first decades of printed circuit technology, they were working on a military application. The objective was to provide a reliable method for reducing the size, bulk, weight, and questionable reliability of wire harness assemblies while simultaneously reducing cost and assuring that human error might be minimized. These were all vitally important concerns for military and aerospace products.




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Designer’s Notebook: DFM Principles for Flexible Circuits

September 14, 2023 | Vern Solberg, Designer's Notebook

Flexible circuit applications can be as basic as furnishing electrical interconnect between two conventional circuit board assemblies, or to prove a platform for placing and interconnecting electronic components. During the planning...

Elementary, Mr. Watson: Flex Designs—The Future and Beyond

September 14, 2023 | John Watson, Elementary, Mr. Watson

Electronics are continually evolving, driven by innovations in printed circuit board technology. Flexible PCBs have emerged as a revolutionary force, reshaping the PCB industry and influencing the design and functionality of countless...

The Shaughnessy Report: Rigid-flex Design No Longer a Niche

September 12, 2023 | Andy Shaughnessy, The Shaughnessy Report

When I first started covering this industry in 1999, rigid-flex circuits were considered a niche market. In fact, Compaq was deemed a trendsetter for using rigid-flex in its laptops. Now, analysts at Credence Research predict that the...

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