... layer, rigid-FPC SPECIFICATIONCAPBILITY-FPC 1 Material UsedPolyimide, PolyesterMaximum Panel Size19.7"x24(500x610mm)Line width & Spacing3mil(0.075mm ... Lead Free Tin Plating Capability-FPC 3 Cover layerPolyimide, Flexible Solder MaskStiffener materialPolyimide, Polyester, FR4, MetalShielding materialCopperfoil, Silver ... such as: mobile phone, camera, computer, LCD atc. high quality flexible pcb board