Brief Introduction of rigid-flex PCB

What is the rigid-flex board?

The birth and development of FPC and PCB has given birth to a new product of rigid-flex board. Therefore, the rigid-flex board is a circuit board having a FPC characteristic and a PCB characteristic formed by a process in which a flexible circuit board and a rigid circuit board are pressed together and assembled according to relevant process requirements.

Production Process

Because the rigid-flex board is a combination of FPC and PCB, the production of rigid-flex board should have both FPC production equipment and PCB production equipment. First, the electronics engineer draws the line and shape of the flexible board according to the requirements, and then delivers it to the factory who can produce the rigid-flex board. After the CAM engineer processes and plans the relevant documents, the FPC production line is arranged to produce FPC and the PCB production line is to produce PCB. After the two boards come out, according to the planning requirements of the electronic engineers, the FPC and the PCB are seamlessly pressed by the press machine, and after a series of detailed steps, the final product of rigid-flex comes out. As it’s very difficult to produce rigid-flex board and the processes are complicated, it is generally necessary to conduct a full inspection before shipment so as to avoid the loss of related interests between the supply and demand sides.

Advantages and disadvantages

Advantages: The rigid-flex board has both the characteristics of the FPC and the characteristics of the PCB with both a certain flexible area and a certain rigid area. Therefore, it can be used in some products with special requirements. It is of great help to save the internal space of the product, to reduce the volume of finished products and to improve product performance.

Disadvantages: Because of the numerous production processes of rigid-flex boards, the difficult production, the low yield, and the many materials and manpower, the price is relatively expensive and the production cycle is relatively long.