FPC (Flexible Circuit Board) is a type of PCB, also known as a "soft board". FPC is made of flexible substrates such as polyimide or polyester film, which has the advantages of high wiring density, light weight, thin thickness, flexibility, and high flexibility. It can withstand millions of dynamic bends without damaging the wires, and can move and expand according to spatial layout requirements to achieve three-dimensional assembly, achieving the integration of component assembly and wire connection. It has advantages that other types of circuit boards cannot compare.
FPC is widely used in mechanical sensitive devices because its flexibility allows circuit boards to resist vibration. Flexible PCBs are more durable than traditional circuit boards, but their manufacturing process is sensitive and complex.