Aoi (Automated Optical Inspection)
Aoi (Automated Optical Inspection) is a camera-based testing method for visual quality control of printed circuit boards and electronic assemblies in the manufacturing process. Components, conductor tracks, and solder joints are analyzed using high-resolution cameras and specialized image processing software. It is used for the early detection of assembly errors, positional deviations, missing or twisted components, and visible soldering defects. Compared to electrical testing methods, it does not provide any information about electrical function, but it does enable fast, comprehensive inspection and is therefore often used as an upstream testing step.
FAQ
AOI is used to visually inspect printed circuit boards and assemblies for placement errors, solder joint quality, and visible deviations without making electrical contact with the assembly.
AOI can be used to detect missing or incorrectly placed components, twisted components, solder bridges, and insufficient or missing solder joints, among other things.
AOI is often used early in the manufacturing process, for example after assembly or soldering, in order to identify errors as early as possible.
Further terms
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