Rigid-Flex PCB Design Review Checklist

Rigid-Flex PCB Design Review Checklist is a comprehensive, pre-fabrication verification guide for engineers designing rigid-flex printed circuit boards. Aligned primarily with IPC-2223E, IPC-6013, IPC-2221, and IPC-TM-650, this checklist helps identify and prevent the most common and costly rigid-flex design failures before files are released to fabrication.

The checklist spans ten core design domains, including bend-zone geometry, stackup and material selection, flex routing rules, via and PTH design, component placement, rigid-to-flex transition integrity, mechanical and electrical analysis, fabrication documentation, and cross-discipline design review sign-off. Each requirement is mapped directly to the governing IPC clause so designers and reviewers understand not only what to check, but why it matters.

Beyond general design verification, the document includes industry-specific requirement sections for military and defense, aerospace and space, medical devices, and automotive/functional safety, highlighting where acceptance criteria, materials, testing, and documentation requirements differ from standard IPC Class 2 and Class 3 designs.

Intended for PCB designers, signal integrity engineers, mechanical engineers, and manufacturing reviewers, this checklist serves as a structured, repeatable review tool to improve reliability, reduce re-spins, and ensure rigid-flex designs meet both IPC and industry-specific compliance requirements prior to fabrication.