What is FPC reinforcement ?

In the PCB production process, especially in the manufacturing of Flexible Printed Circuits (FPC), the term "FPC reinforcement" is often heard. So, what exactly is FPC reinforcement?

First, let's understand what FPC is. FPC is a relatively flexible and thin printed circuit board. In contrast to regular rigid boards, FPC features flexibility and bendability, making it commonly used in smart devices and automotive electronics. However, due to its soft nature, FPC may lack mechanical strength, and in certain applications, excessive bending, deformation, or damage may occur during use. This is where the reinforcement of FPC comes in to address these issues.

During the production process, rigid reinforcement materials can be added to specific areas of FPC. The most common reinforcement materials include PI reinforcement, FR4 reinforcement, and metal reinforcement (such as steel, copper, aluminum plates), aiming to enhance the mechanical strength of FPC.

Therefore, the concept of FPC reinforcement involves using various materials during the production of FPC to augment its mechanical strength. This ensures that FPC retains its flexibility while gaining improved mechanical strength, resulting in characteristics such as resistance to deformation, wear, and breakage. This significantly enhances the quality and lifespan of electronic products!