FPC spec:
○ Min. trace width : 0.075mm
○ Min. space between trace: 0.075mm
○ Min. hole size: 0.25mm
○ Min thickness:  a) Single sided: 0.07mm
                 b) Double sided: 0.13mm
○ Dimension tolerance: a)+/-0.05mm (Metal tooling)
                      b)+/-0.10mm (Cutting tooling)
○ Base materials: PI, PET
○ Conductor (copper thickness): 0.5oz., 10oz. and 20oz. (RA and ED copper)
○ Cover-layer: PI and PET (solder mask printing is available)
○ Adhesive material: Epoxy, Acrylic and Polyester
○ Stiffener materials: FR-4, Mylar and Polyimide
○ Surface finishes: flash gold plating, selective gold plating and solder plating