Why does FPC need reinforcement?

FPC, as the only flexible type of circuit board, quickly found applications in various electronic devices from its inception, and its usage has become increasingly widespread. Almost every advanced industry now incorporates it. Those familiar with FPC should be well aware of its advantages and disadvantages. The flexibility and lightweight characteristics of FPC make it an ideal choice for many high-tech products. However, in practical applications in certain industries, it is necessary to reinforce FPC before use. So, why reinforce FPC?

Firstly, the term "flexible" in FPC refers to its use of a flexible substrate that can bend and fold to meet various spatial requirements. However, flexibility also implies relatively low mechanical strength. In certain applications, especially those involving frequent bending or external impact, the softness of FPC may not be sufficient to meet stability and durability requirements. In such cases, it is necessary to reinforce FPC. The reinforcement process typically involves adding one or more layers of material to the substrate of FPC to enhance its overall strength and rigidity. This reinforcement not only increases the FPC's resistance to bending but also helps prevent tearing or fracturing during use.

Another reason for reinforcing FPC is to increase its load-bearing capacity. Some applications require FPC to bear additional weight or forces, such as in industrial control equipment or automotive electronic systems. By adding reinforcing materials to FPC, its load-bearing capacity can be effectively increased, ensuring that the equipment will not experience system failures due to FPC failure during operation.

Furthermore, reinforcing FPC also helps improve its environmental resistance. In some extreme environments, such as high temperatures, high humidity, or corrosive conditions, the lifespan of FPC will be significantly reduced. To enhance the stability and reliability of FPC under harsh environmental conditions and extend its lifespan, it is essential to reinforce it by adding special materials resistant to high temperatures, chemical corrosion, and other factors.