Category: Blogs

Automated Optical Inspection Systems Market - Global Industry Trends, Forecast 2024 Automated optical inspection (AOI) is the automated system for visual inspection on a printed circuit board (PCB) (or an LCD, a transistor) in which an autonomous camera scans a device which is to be tested for both the catastrophic failure (for e.g. a missing component) and the quality defects (for e.g. a fillet size or a shape or a component skew). It is most commonly used for manufacturing processes as it is a test method which does not require any contact. It is implemented through various stages of the manufacturing process which includes bare board inspections, SPI (solder paste inspections), pre reflows and post reflows among the other stages. Automatic optical inspection enables a fast and an accurate inspection of the electronics assembly and in particular printed circuit board ensuring the quality of a product coming out of production line is best and the item is correctly built without any manufacturing faults. Automated optical inspection system applies different techniques for fault detection in the printed circuit board. One of the techniques is template matching which compares the image of printed circuit board and the golden board. Another techniques used are pattern matching and statistical pattern matching.