Application Case | Application of MV-AFU2000C Auto Focus Camera in PCB Defect Inspection

As electronic devices continue to evolve toward higher performance and miniaturization, the manufacturing process for printed circuit boards (PCBs) is facing new technical challenges. Current mainstream PCB products feature line widths and spacings in the micrometer range, while multi-layer board designs are becoming increasingly complex, often incorporating both micrometer-scale components and large connectors on the same panel. While this technological evolution enhances circuit performance, it also imposes stricter requirements on testing methods.

In the PCB manufacturing process, even a 0.1mm defect can cause circuit malfunction and seriously affect product yield. Traditional inspection methods face the following challenges:

1. Traditional production lines mostly use manual inspection, which consumes a lot of manpower and is affected by human fatigue, resulting in a high rate of missed defects.

2. Fixed-focus industrial cameras have a limited depth of field and cannot adapt to PCB warping and component height differences, resulting in blurred images.

In response to the stringent requirements of industrial inspection, MindVision independently developed the MV-AFU2000C autofocus camera, which offers the following advantages:

Taking detection accuracy and compatibility to a new level, providing cost-effective industrial inspection solutions for precision visual applications such as PCB inspection.

●PCB defect detection

Autofocus technology dynamically adjusts the optical focal length based on the distance between the object being measured and the visual system, switching between different focal lengths in microseconds to ensure that all targets on the PCB are clearly imaged. This enables effective detection of defects on the circuit board and clear identification of whether the product meets standards.

Industrial inspection

Biomedical