Discussion on the Design Function of FPC Impedance Board

As a product that can effectively hinder AC power, choosing a high-quality FPC impedance board manufacturer for cooperation can ensure the quality requirements of FPC products, thereby increasing customer trust in their own products. So what is the role of FPC impedance board in design?



When operating electronic devices (computers, communication machines), the signal emitted by the driver will reach the receiver through the FPC transmission line. When the signal is transmitted in the signal line of the printed circuit board, its characteristic impedance value Z0 must match the "electronic impedance" of the head and tail components, and the "energy" in the signal will be fully transmitted.



2. Once the quality of the printed board is poor and Z0 exceeds the tolerance, the transmitted signal will experience problems such as reflection, dispersion, attenuation, or delay. In severe cases, incorrect signals may be transmitted and the machine may crash.



3. Strict selection of boards and control of production processes are necessary to ensure that the Z0 on multi-layer boards meets the specifications required by customers. The higher the electronic impedance of a component, the faster its transmission speed will be. Therefore, the Z0 of FPC also needs to be increased to meet the requirements of matching components. Only qualified FPC multilayer boards with Z0 can be considered as qualified products for high-speed or high-frequency signals.