Heavy copper PCB is made of heavy copper foil or ultra-heavy copper foil.The conductive materials and substrate materials used,the production process,and the application field of heavy copper PCB are different from those of the conventional PCB.Heavy copper PCB is widely used because of its high current load,excellent thermal stability,good heat dissipation,good signal integrity,high reliability and strong customization.Pressing is the key process of heavy copper PCB.Aiming at the problem that the quality risk is easy to be caused in the pressing process of heavy copper PCB,this paper analyzes and verifies the design and process to provide reference for the production of heavy copper circuit board products.
关键词
厚铜PCB/压合/半固化片/空洞与分层
Key words
heavy copper PCB/pressing/prepreg/void and delaminate
维普
万方数据