... immediate delivery 4.Quality Certification FPCB is completely named as flexible printed circuit board. Cover flexible base board with dry film ... thickness of soldermask 10um 12Soldermask Green,Yellow,Black,Blue,White,Red,transparent photosensitive,,soldermask,Strippable soldermask13Minimum linewidth of ... etc., 20Special technological requirementBlind & Buried Vias and High Thickness copper