A: Automatic Optical Inspection (AOI) of PCB (Printed Circuit Board) is a technology-driven process used in electronics manufacturing to detect defects, errors, and inconsistencies in the production of PCBs. It involves using specialized optical systems, cameras, and software to automatically inspect and analyze the PCB assembly’s quality.

AOI systems capture high-resolution images of the PCB, which may include components, solder joints, traces, and other features. The software then analyzes these images and compares them to a predefined standard or reference model. The software identifies defects such as misaligned components, soldering issues, missing components, incorrect polarity, etc.

The advantages of AOI include its ability to perform rapid and consistent inspections, reducing the need for manual labor, and increasing the overall quality of PCB production. It helps catch defects early in the manufacturing process, preventing costly issues. Additionally, AOI systems can often inspect boards with high precision, detecting defects that may be difficult for human inspectors to identify.

Automatic Optical Inspection (AOI) is a critical component of quality control in PCB manufacturing, contributing to improved reliability and functionality of electronic devices.