AOI stands for Automated Optical Inspection. It is a technology used in various industries, particularly in electronics manufacturing, to inspect printed circuit boards (PCBs) for defects. The process involves the use of specialized cameras, lighting systems, and computer algorithms to detect and identify defects on PCBs with high accuracy.
In AOI, a PCB is scanned using a high-resolution camera system that captures images of the board from multiple angles. The images are then processed by advanced software algorithms that analyze the board's features, colors, and patterns. The software compares the captured images with a preloaded database of defect-free board images to identify any deviations or anomalies.
Defects that AOI can detect include soldering defects, component placement errors, missing components, incorrect or misoriented components, shorts, opens, and other manufacturing defects. The software generates detailed reports that highlight the location and nature of the defects, allowing engineers to identify and rectify the issues.
AOI is a significant advancement in quality control and inspection processes, as it provides a faster and more accurate method compared to manual inspection. It helps manufacturers increase productivity, reduce production costs, and improve product reliability by minimizing defects early in the manufacturing process. AOI is an essential tool for ensuring the quality and reliability of PCBs, especially in industries where electronics play a crucial role, such as telecommunications, automotive, aerospace, and consumer electronics.
