Flex Printed Circuit (FPC) is a type of printed circuit board with high reliability and excellent flexibility, mainly made of polyimide or polyester film as the substrate. It has the characteristics of high wiring density, light weight, thin thickness, and good bending performance, and has become the basic component of a large number of electronic products.

Rigid Flex PCB or R-FPC is a special type of printed circuit board that combines the advantages of both rigid circuit boards (PCBs) and flexible circuit boards (FPCs). This type of circuit board performs well in applications with dense wiring and high-density connections.

Buried copper block board, also known as embedded copper block PCB, is a new type of electronic substrate material. It has the characteristics of high thermal conductivity, high heat dissipation, and saving board space, which can effectively solve the heat dissipation problem of high-power electronic components.