You should characterize any process that involves mechanical loading or board flexure: Using IPC/JEDEC-9704 & 9702 Standards for Strain Gauge
IPC-9704 is an industry standard that defines a test method and acceptance criteria for the mechanical and environmental reliability of electronic assemblies after they undergo thermal stress (thermal cycling) and mechanical stress. It is primarily used to assess solder joint integrity and the robustness of surface mount and through-hole components on printed circuit boards (PCBs).
The IPC-9704 standard covers a comprehensive range of topics essential for effective strain gauge testing. Here are the main sections and their core contents: ipc-9704 pdf
While the current Revision A (2012) remains widely used, the electronics industry continues to evolve rapidly. Future revisions may address emerging technologies including:
The IPC‑9704 standard is a . The official PDF must be purchased from authorized distributors to ensure you receive the correct, complete, and current revision. Unauthorized “free” PDFs found on file‑sharing websites are often incomplete (missing tables, figures, or appendices), outdated (offering the obsolete 2005 version rather than the current 2012 Revision A), or even corrupted. You should characterize any process that involves mechanical
It should be noted that while IPC JEDEC-9704A remains widely used in industry practice, some standards distributors list it as "withdrawn" as of December 2018. This status may reflect administrative classification rather than practical obsolescence; the standard continues to be referenced in manufacturing specifications and test requirements worldwide. Professionals should check with official IPC sources for the most current revision status.
Implementing IPC-9704 typically follows a systematic process: Here are the main sections and their core
: Manufacturers use the standard to ensure PCB assemblies can withstand thermal cycling, vibration, and mechanical shock encountered in vehicle environments. Strain testing helps validate designs for engine control units, infotainment systems, and advanced driver-assistance systems (ADAS).
Printed Circuit Board Strain Gage Test Guideline (used for testing and measurement). How to Acquire the IPC-9704 PDF