The Visual Inspection Standard
IPC-A-600 is the universal reference for PCB visual acceptance - the standard every inspector in our facility is certified to. It defines acceptable conditions for surface defects (measling, crazing, blistering), plating quality (voids, nodules, burrs), solder mask coverage, conductor integrity, and dimensional accuracy. Class 2 covers industrial/commercial products; Class 3 tightens every criterion for applications where failure is not an option.
