Single-sided Double Access FPC
1 mil Polyimide Base 1oz Cu
1 mil Polyimide Coverlay
0.2mm Polyester Stiffener
Tin-Lead Plating

Double-sided FPC
1 mil Polyimide Base 0.5 oz Cu
1 mil Polyimide Coverlay
Hot Air Solder Leveling

Single-sided FPC
1 mil Polyimide Base 1oz Cu
1 mil Polyimide Coverlay
Flux Coating

Flex-Rigid Board
1 mil Polyimide Base 1 oz Cu
1 mil Polyimide Coverlay
Imersion Gold on Flexible part
HAL on rigid part