Production process breakdown

Open material grinding edge drilling hole outer surface figure > (full plate gold plating), etching, test, screen printing, solder resist (hot air leveling), screen printing character, contour processing, test, test

2) double sided HASL process

Open material grinding edge drill hole sink copper thickening: outer layer pattern tin tin etching tin return two drill hole test test screen silk welding resistance welding gold plated plug hot air leveling screen printing character x contour processing test test

3) the process of nickel plating on double sided plates

Open material grinding edge drill hole sink copper thickening: outer layer figure nickel plated gold film etching two hole test test screen silk screen welding resistance screen printing character x contour processing test test

4) multilayer HASL process

Cutting edge grinding, drilling hole, and the inner layer image positioning, etching, inspection, lamination, hole drilling, blackening copper, tin, thickened outer graphics, tin, etching two hole drilling, inspection and screen printing solder, gold-plated plug, hot air leveling, printing, processing, testing, character appearance inspection

5) the technological process of nickel plating on multilayer plates

Cutting edge grinding, drilling hole, and the inner layer image positioning, etching, inspection, lamination, hole drilling, blackening copper, gold, and thickened outer graphics to film etching, two hole drilling, welding, inspection and silk screen printing, processing, testing, character appearance inspection

6) the process of multi layer plate sinking nickel gold plate

Cutting edge grinding, drilling hole, and the inner layer image positioning, etching, inspection, lamination, hole drilling, blackening copper, tin, thickened outer graphics, tin, etching two hole drilling, resistance welding, chemical examination, screen printing, screen printing, electroless nickel gold character shape processing, testing and inspection