Flexible circuit boards, also known as "flexible boards", are printed circuits made of flexible insulating substrates. Flexible circuits provide excellent electrical performance, can meet the design needs of smaller and higher density installations, and also help reduce assembly processes and enhance reliability. Flexible circuit boards are the only solution to meet the requirements of miniaturization and mobility of electronic products. It can be freely bent, wound and folded, can withstand millions of times of dynamic bending without damaging the wires, can be arbitrarily arranged according to the space layout requirements, and can be arbitrarily moved and stretched in the three-dimensional space, so as to achieve the integration of component assembly and wire connection The flexible PCB circuit board can greatly reduce the volume and weight of electronic products, and is suitable for the development of electronic products in the direction of high density, miniaturization and high reliability.
