How is PCB (printed circuit board) produced? - PCB double-sided process flow?

How is PCB (printed circuit board) produced? - PCB double-sided process flow?

Detailed explanation of ONESEINE PCB process flow

PCB has a long history, from single sided, double-sided, multi-layer, to high-frequency circuit boards, from PCB equipment to production technology, there are significant differences, and the focus of quality control is also different. Today, I will talk about the production process of PCB double-sided boards..

Production process flow of PCB double-sided circuit board:

1. Engineering processing of PCB files

2. Board cutting: Cut the PCB substrate into production dimensions;

3. Drilling

4. Copper sinking

5. Pre treatment: Clean the surface of the PCB substrate to remove surface pollutants

6. Printing circuit

7. Exposure

8. Development

9. Graphic electroplating

10. AOI intermediate testing

11. Resistance welding

12. Text

13. Tin spraying

14. Forming

15. V-CUT

16. Test the flying needle

17. Plate washing

18. FQC

19. Packaging and warehousing