... assembly) Reliable Parts 1.Detailed Specification of PCB Manufacturing 1Layer1-30 layer2MaterialFR-4,CEM-1,CEM-3,Hight TG,FR4 ... (3mil)8Surface finish/treatmentHALS/HALS lead free,Chemical tin,Chemical Gold,Immersion gold Inmersion Silver/Gold,Osp,Gold Plating9Copper thickness0. ... ICT(In Circuit Test),FCT(Functional Circuit Test) technology.4) PCB Assembly With UL,CE,FCC,Rohs Approval5) Nitrogen gas ...