Applications of High-Precision Laser Sensors in the 3C Industry

As technology rapidly iterates, the 3C industry (computer, communication, consumer electronics) demands increasingly strict production process and product precision. High-precision laser sensors play a crucial role in the 3C industry and have become a key driving force.

Principles and advantages

Laser sensors use laser triangulation or time-of-flight/echo analysis. For triangulation, a laser projects a spot on the target and a CCD or detector views it at an angle; the position shift relates to distance, enabling sub-micron linearity and high resolution suitable for short-range precision measurement.

Typical 3C applications

1. Assembly quality inspection: laser sensors detect tiny height differences to verify component placement.

2. PCB manufacturing: detect warpage after lamination or plating and check component heights during SMT and packaging.

3. Upgrading pick-and-place machines: laser sensors provide fast, high-precision feedback to improve placement accuracy and reduce defect rates.

Overall, adoption of high-precision laser sensors has helped many 3C manufacturers reduce defect rates and improve yield and process stability.