Production Process for Different Layers of PCB
According to the number of layers, the printed circuit board （PCB）can be divided into single sided board, double sided board and multilayer circuit board. There are some similar and also some different manufacturing steps among their PCB production lines. Different PCB manufacturers may own different manufacturing process steps. We will introduce the general PCB Production Process of single sided board, double sided board and multilayer circuit board.
Single Sided Board Fabrication Process
1. Pre Prod Engineering
2. CAD/CAM and Drill Program
3. Shearing
4. Drilling
5. Deburring
6. Scrubbing
7. Outerlayer Image
8. Etching
9. Resist Stripping
10. Premask Inspection
11. Scrubbing
12. LPI Screening
13. Tack Drying
14. LPI Image
15. LPI Final Baking
16. HALS
17. HALS Inspection
18. Silkscreen(Legend)
19. Fabrication
20. Electrical Testing
21. Final Inspection
22. Final Audit
Single Sided Board Fabrication Process
Double Sided Board Fabrication Process
1. Pre Prod Engineering
2. CAD/CAM and Drill Program
3. Shearing
4. Drilling
5. Deburring
6. Desmear
7. Electroless Copper
8. Scrubbing
9. Outerlayer Image
10. Copper Plating
11. Tin Plating
12. Resist Stripping
13. Etching
14. Tin Stripping
15. Premask Inspection
16. Scrubbing
17. LPI Screening
18. Tack Drying
19. LPI Image
20. LPI Final Baking
21. HALS
22. HALS Inspection
23. Silkscreen(Legend)
24. Fabrication
25. Electrical Testing
26. Final Inspection
27. Final Audit
Double Sided Board Fabrication
Process
Multilayer Circuit Board Fabrication Process
1. Pre Prod Engineering
2. CAD/CAM and Drill Program
3. Shearing
4. Innerlayer Image
5. Innerlayer Etching
6. Resist Stripping
7. Innerlayer Inspection
8. Black Oxide
9. Innerlayer Punch
10. Multilayer Lay-Up
11. Multilayer Pressing
12. Shearing and Beveling
13. Drilling
14. Deburring
15. Desmear
16. Electroless Copper
17. Scrubbing
18. Outerlayer Image
19. Copper Plating
20. Tin Plating
21. Resist Stripping
22. Etching
23. Tin Stripping
24. Premask Inspection
25. Scrubbing
26. LPI Screening
27. Tack Drying
28. LPI Image
29. LPI Final Baking
30. HALS
31. HALS Inspection
32. Silkscreen(Legend)
33. Fabrication
34. Electrical Testing
35. Final Inspection
36. Final Audit
Multilayer
Circuit Board Fabrication Process
Different PCB production processes require different manufacturing equipments. ALLPCB.com has audited all the widely used fabrication machines and testing equipments from the cooperative manufacturers. Click to see more details about the audited PCB equipments.
