SMT AOI/SPI machine
SMT AOI/SPI machine （SMT Automated Optical Inspection machine）
One of the most effective inspection methods in the SMT environment is automated optical inspection (AOI). It aids in the early detection of faults and flaws in the production process. The purpose of this article is to describe AOI and its applications in the PCB sector.
The fast advancement of the semiconductor industry toward miniaturization has resulted in a noticeable shift in printed circuit board (PCB) technology. As a result, the number of pins in integrated circuits per unit space has grown. The density of components, track width, and gap between bonding pads are all decreasing. Component pad design, solder paste selection, and solder amount per pad for excellent solder joints have all become critical components in electronic Board assembly process.
Furthermore, since production quantities and quality standards have skyrocketed, the inspection process has become a crucial component of the surface-mount technology (SMT) environment. For quality analysis and improvement, the industry has embraced the notion of scientific and data-driven approach. The traditional inspection techniques of sampling, manual visual inspection, and tool-based inspection were not enough for high-density PCB assembly products. As a result, process engineers and quality control engineers are increasingly relying on automated devices to solve quality and productivity problems.
