1.The standard drawing file need include 4 layers : PAD file/ Drill Map file/ Silk Screen file/ Solder Mask file.
2. PCB maker provide panelization Gerber
3. The standard panel edge : 10 mm in up & down.
4. The standard size of location hole : two location hole in left & right and dimeter:4mm center offset 5mm of edge left & right side.
5. The standard visual mark point: 1 mm tin soiled opposite side diagonal asymmetry 3mm transparent circle.
SMT anti-error material system
SMT anti-error material system is able to prevent the abnormal to get quality production.