Inspection2026-04-24
AOI Inspection in PCB Assembly: What It Catches, What It Misses, and When Buyers Should Ask for More
AOI inspection is one of the most common quality gates in PCB assembly, but many buyers misunderstand what automated optical inspection can actually verify. This guide explains where AOI adds value, which defects it catches well, where it fails, and how to combine it with SPI, X-ray, ICT, and functional test for lower escape risk.
By Hommer Zhao