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Rigid-flex: Designing in 3D
In this month’s issue, our expert contributors share their best tips, tricks and techniques for designing rigid-flex circuits. If you’re a rigid board designer considering moving into the 3D world of rigid-flex, this issue is just what the doctor ordered!
Simulation, Analysis, and AI
Getting today’s designs “right the first time” is critical, especially with costly advanced PCBs. Simulation and analysis software tools can help you in the fight to eliminate respins. They’re not magical, but they can predict the future of your design.
Advanced, Complex & Emerging Designs
This month, our contributors focus on designing PCBs with advanced, complex and emerging technologies. We investigate design strategies for boards that are on the cutting edge of technology, or crazily complex, or so new that designers are still writing the rules as they go.
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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).
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.
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...
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...
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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- An Overview of Rigid-flex Design, with Kris Moyer
- Rigid-flex Stackup: It’s a 3D World, by Bill Hargin
- Design for Manufacturing Principles for Flexible Circuits, by Vern Solberg
- Unlocking the Key to Rigid-flex Design Success, by Joe Fjelstad
- Rigid-flex Design Guidelines, by Cherie Litson
- Selecting a Rigid-flex Fabricator, by Mike Morando
- Human Ingenuity and the Rigid-flex PCB, by Tim Haag