Auto Optical Inspection(AOI)

Automated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) manufacture where a camera autonomously scans the device under test for both catastrophic failure (e.g. missing component) and quality defects (e.g. fillet size or shape or component skew). It is commonly used in the manufacturing process because it is a non-contact test method. It is implemented at many stages through the manufacturing process including bare board inspection, solder paste inspection (SPI), pre-reflow and post-reflow as well as other stages.

X-Ray Inspection

Auto X-ray Inspection has grown as a new type technology in PCB assembly inspection. Similar to optical inspection, X-ray inspection produces images of the PCBA object. The image is then processed by image processing software that detects the position and size and shape of expected features for process optimization or presence /absence of unexpected /unintended objects or features for anomaly detection. Instead of visible light, it uses X-rays, typically generated by an X-ray tube that pass through the object.

In-Circuit Testing(ICT)

In-Circuit Test (ICT) is a standard test method to check the PCBA manufacturing defect and poor component by testing the electrical performance and connections of circuit components. It tests the soldering condition of the components, the on-off of the circuit, the value of voltage and current, the fluctuation curve, the amplitude, and the noise, etc.

Functional Testing(FCT)

The Functional Testing needs to carry out IC programming, simulate the function of the whole PCBA board, find the problems existing in the hardware and software, ensure the performance of PCB manufacturing and soldering. FCT testing pcb is also equipped with necessary production fixtures and test racks.