Detailed process a variety of different PCB circuit board

- Jul 25, 2016-

Single-sided circuit board, double-sided spray tin plate, nickel plating double sided, multilayer HASL, Multilayer nickel plating, multilayer ENIG board; these types of circuit boards different process in detail introduction.

1, single panel process

Cutting the outer edging → drilling → Graphics → (the entire board gold) → Etching → → inspection → silk solder (HASL) → screen character → contouring → test → test.

2, double-sided HASL process

Cutting edging → drilling → copper deposition layer pattern thickening → → Tin etching stripping → secondary drilling → inspection → silk solder-plated plug → → → hot air leveling screen character → contouring → test → test.

3, double-sided nickel plating process

Cutting edging → drilling → copper deposition layer pattern thickening → → nickel, gold went to film etching → secondary drilling → inspection → silk screen printing solder → character → contouring → test → test.

4, multilayer HASL process

Cutting edging → drilling positioning hole → Graphics → inner lining etching → inspection → blackening → lamination → drilling → copper deposition layer pattern thickening → → Tin etching stripping → secondary drilling → inspection screen printing solder-plated plug → → → → hot air leveling screen character → contouring → test → test.

5, multilayer nickel plating process

Cutting edging → drilling positioning hole → Graphics → inner lining etching → inspection → blackening → lamination → drilling → copper deposition layer pattern thickening → → gold, to film etching → secondary drilling → inspection → silkscreen printing solder → → contouring → test → test.

6, Multilayer ENIG board process

Cutting edging → drilling positioning hole → Graphics → inner lining etching → inspection → blackening → lamination → drilling → copper deposition layer pattern thickening → → Tin etching stripping → secondary drilling → inspection → → screen printing solder chemical ENIG → screen character → contouring → test → examine.


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