China Topscom Tell Customer,What is the acceptance standard in PCB boards manufacturing?we can see below standard.
 
The article is posted by Mr.Xiao Wei, Director of China Topscom Pcb Layout Design Department,China Topscom provide professional Pcb boards layout design,pcb assembly and manufacturing,full turnkey systems integration box build assembly,contract electronic manufacturing service.
 
Keywords: China Pcb boards Industry,pcb boards manufacturing supplier,pcb boards fabrication company.

 

1. The incoming goods should be in accordance with the order version of the purchase order.
2. There is no short circuit or open circuit on the line.
3. The conductor (residual copper) of the non-line must be more than 2.5mm off the line, and the area must be less than 0.25mm 2;
4. If the hole is punched in the middle of the PAD, the hole position is offset or the PAD is damaged, not less than 30% on one side.
5. Multiple drilling, leakage, deformation and final penetration are not allowed in drilling.
6. PTH part insert hole, hole breaking area ≤ 5%, paint (same as PAD, on resistance solder oil) area ≤ 10%;
7. Do not allow the line to be warped and so on (the line is warped);
8. The PAD of PCB line shall not be warped (solder joint warped).
9. It is not allowed to expose copper and tin on the line.
10. The actual line width shall not deviate from the original design width by ±20%;
11. The offset of solder resistance oil screen does not exceed ±0.15 mm;.
12. If the line is painted, the paint area on the PAD must be less than 10% of the original area.
13. Blistering: the foaming area must be less than 0.7mm from the circuit, and the maximum area must be less than 0.7mm 2, and it is in the place where the parts are covered.
14. The shape tolerance is ±0.15;
15. The diagonal length of the substrate with the degree of PCB deformation, bending and warping ≤ 1%;
16. Fracture is not allowed in PCB.
17. The order made by the signing board shall be subject to the final confirmation of the model, and the signed drawing shall be used to make the goods and its additional information.
18. If the puzzle requires Vmurcut, its depth must be deep into the thickness of the board.
19. The edge of the substrate is convex tooth or uneven ≤ 0.2mm;
20. The thickness of gold plating shall meet the requirements of APPROVE SHEET (single and double panel 5U).
21. The aperture is checked according to the molding size drawing provided in APPROVE SHEET, and the aperture specification and the allowable error range are checked.
22. If the factory has special requirements for white solder oil, if PCB requires white oil, the white oil is pure white;
23. Fingerprints, water lines or wrinkles are not allowed on the surface of anti-solder oil.
24. The TEXT, MODEL, LOGO, FCC, CE and other words on the part side shall not be damaged and unrecognizable.
25. There is no oil stain such as flux and colloid on the surface of PCB board.