... price 3.ROHS, UL, ISO9001-2000,ISO14001 1. double-side fpc with PI stiffener for digital cameras2. high ... Board items technical index base material Polyimide (PI), polyester (PET) layerSingle-layer, double-layer, multi-layerCopper thickness12um, 18um, 35um, 70umWorking ... tolerance±0.05mm(2mil) Outline tolerance±0.1mm(4mil)Minimum line width / space0.05mm(2mil)External treatmentrouting, punching, laser ...