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A 10 Gbps PCIe Gen4 channel failed compliance testing—root cause: 0.25mm microvias with 1:8 aspect ratio caused 12% impedance discontinuity. This article...

A medical imaging device failed EMI compliance—root cause: using FFC instead of FPC in a 45° flex zone. Here’s how to choose between FFC (Flat Flex Cable)...

A military radar array failed after 48 hours in desert testing—root cause: solder mask delamination at 125°C. Dry film outperforms LPI in thermal cycling...

A PCB BOM is the document that tells purchasing and assembly exactly what to buy, place, and verify. This guide explains the required fields, sourcing details, file formats, and review steps that prevent line-down delays, wrong-part substitutions, and expensive rework.

PCB panelization is the difference between a board that assembles cleanly and one that breaks rails, scraps panels, or damages edge components. This guide explains when to use V-scoring vs tab routing, how to size rails and fiducials, and what to check before sending Gerbers to fabrication.

A cable assembly is a bundled group of wires or cables enclosed in a protective sheath with terminated connectors. This guide covers the 7 main types, core components, how cable assemblies differ from wire harnesses, manufacturing steps, cost factors, and selection criteria backed by IPC/WHMA-A-620 standards.