This is a board type with high manufacturing process and cost, which combines the characteristics of both PCB and FPC. The characteristics of the rigid and flex combination board determine that its application areas cover all application areas of FPC and PCB.Its advantageous performance is mainly applied to high reliability products such as mobile devices, automotive electronics, medical equipment, aerospace, etc. The combination of rigid and flex boards reduces the use of connectors and connecting circuits, enabling higher circuit integration within an effective space, more reliable signal transmission, and to some extent, reducing part and process costs, simplifying processes, and saving labor hours. The flexible part can adapt to stress conditions such as folding and twisting during product use, and has anti-vibration and anti-impact effects. Compared to rigid PCB, it is lighter and suitable for smaller devices. Meanwhile, its overall performance is relatively superior, including electrical performance, mechanical performance, and thermal performance.