Flexible copper clad laminate refers to a copper clad laminate formed by bonding with copper foil on one or both sides of flexible insulating materials such as polyester film or polyimide film through a certain process.

Flexible copper clad laminates are widely used in aerospace equipment, navigation equipment, aircraft instruments, military guidance systems and electronic products such as mobile

Flexible copper clad laminate (FCCL) is a core component of flexible printed circuits (FPCs). FCCL comprises layers of copper foil and polyimide, which are used as an electrical conductor and insulator, respectively.