YHD Electronics Limited is committed to providing proofing/medium and small batch services for global R&D and innovative enterprises, with 2~30 layers of high TG boards, high frequency boards, HDI boards, thick copper boards, FPC boards, flexible and rigid boards, and a wide range of products from samples to batches. Used in industrial control, communications, new energy, automobiles, medical equipment, security, aerospace and other fields
1. Do a backlight test after copper sinking to ensure the adhesion of the copper hole
2. After etching, do a slice analysis to ensure the thickness of the hole copper and the thickness of the surface copper
3. AOI optical scanning to ensure the straight-through rate of the line (to prevent open circuit and short circuit)
4. High-speed screw flying needle machine test to ensure yield
5. The solder mask is exposed by LED parallel exposure machine
6. High-precision laser text printing to ensure text clarity and accuracy