Automated Optical Inspection (AOI) is a type of automated visual inspection of printed circuit board manufacturing in which cameras automatically scan the device under test for catastrophic failures (such as missing components) and quality defects. Since it is a non-contact testing method, it is often used in manufacturing processes. Guaranteed the high reliability of the multilayer circuit board....

The Benefits of AOI 1. Positioning accuracy In SMT production , as the size of components shrinks, the positioning accuracy of production and inspection tools becomes more and more important. The rule of thumb for an AOI PCBA system is to have sub-pixel accuracy to ensure that the system can locate small positional deviations that can cause 01005 defects and problems. How to Choose A Good SMT Fact...

At present, AOI is the most mainstream and efficient detection method in the SMD foundry industry. Every product of Enercon Electronics will pass AOI. AOI can detect many kinds of defects, including poor solder paste, poor component placement, poor reflow soldering, etc. Some of them can be repaired. The following introduces the most frequent welding defects and solutions we encounter in the produ...