PCB double -sided rigid printed board

　　Double -sided rigid version → double -sided copper covered plate → feeding → stack board → CNC diamond guide pores → test, removing burr brush → chemical plating (metal of guide holes) → (full board electroplating thin copper) → inspection brush → Net Printing circuit graphics, curing (dry membrane or wet film, exposure, development) → inspection, repair board → line graphics electroplating → electroplating (anti -nickel/gold) → de -printed (sensor) → etching copper → (( Retirement) → Clean brush → Net printing and welding graphics commonly used thermal solidification green oil (light -sensitive dry film or wet film, exposure, development, thermal solidification, commonly used sensor thermal solid green oil) → cleaning, drying → net print marking character graphics graphics graphics graphics graphics graphics graphics graphics , CITC → (spray tin or organic welding film) → Machining → cleaning, drying → electrical interrupt detection → inspection packaging → finished product factory. Multi -layer board processing process of penetrating the metallic metallization method → the inner layer of copper -covering double -faced fabric → brushing → drilling positioning holes → pasteting light to prevent corrosion dry membrane or coating photosynthesis Membrane → inner layer crude, de -oxidation → inner layer examination → (outer single -sided single -sided copper plate line production, B -order adhesion slices, board adhesion inspection, drill positioning hole) → layer pressure → digital control drilling hole → digital control drilling pores → digital control diamond → Pole inspection → Pole processing and chemical copper plating → full board plating thin copper → plating check → paste to resist electroplange dry coating or coated light -resistant electroplating agent → surface layer bottom plate exposure → display, repair board → line graphics plating → line graphics plating → Electro -plated lead alloys or nickel/gold plating → remove membrane and etching → check → net printing weld or optical welded graphics → printed character graphics → (hot air flat or organic welded film) → CNC cleaning → cleaning , Dry → Electrical Break Inspection → Products Inspection → Packaging Factory.