PI copper and silver plated film

PI copper and silver plated film is a flexible composite conductive film material made by using high-performance polyimide film as the insulating substrate and depositing copper and silver layers sequentially through multi-layer plating process. This material is designed specifically for high-end electronic applications that have extremely high requirements for conductivity, thermal conductivity, high-frequency signal transmission, and soldering performance. Polyimide substrates have wide temperature tolerance, excellent mechanical strength, and low thermal expansion coefficient; The copper layer serves as an intermediate conductive layer, providing a good conductive foundation and mechanical buffering; The outer silver layer, with the highest electrical and thermal conductivity characteristics of silver metal, endows the film material with high conductivity and excellent heat dissipation ability. At the same time, the silver layer has excellent solderability and oxidation resistance, meeting the reliable interconnection requirements of precision electronic devices.

In principle, the performance advantage of PI copper plated silver plated film comes from the synergistic cooperation between the substrate and the bimetallic coating. The high insulation of PI substrate provides stable dielectric support for high-frequency circuits, and its high temperature resistance enables the film material to withstand multiple reflow soldering and high-temperature service environments. The copper layer serves as a connecting layer and conductive reinforcement layer, optimizing the adhesion between the coating and the PI substrate, and forming a composite conductive structure with the silver layer to reduce overall resistance. The silver layer, with its low resistivity and high thermal conductivity, can effectively reduce conductor losses in high-frequency signal transmission, while quickly conducting heat and alleviating the local temperature rise problem of high-power density devices. The excellent weldability of the silver layer facilitates reliable electrical interconnection through welding processes, while its oxidation resistance ensures contact stability during long-term service.

The core advantage of this product lies in its high conductivity and thermal conductivity, which meet the dual requirements of signal integrity and heat dissipation performance for RF circuits and terahertz devices; The copper silver composite coating structure balances mechanical bonding and electrical performance; The PI substrate endows the film material with comprehensive advantages such as flexibility, bendability, high temperature resistance, and dimensional stability. Advanced Institute (Shenzhen) Technology Co., Ltd. can customize PI substrate thickness, copper layer thickness, silver layer thickness, and film width according to customer needs, providing highly reliable flexible conductive and thermal conductive material solutions for high-end RF communication, aerospace electronics, and high-power density electronic devices.