With the development of mobile communication network services towards dataization and grouping, the development trend of mobile communication base stations is inevitably towards broadband, large coverage construction, and IP. The market demand for base station power supply applications is gradually increasing, among which the performance improvement of communication power conversion systems comes from the reduction of the on resistance of high-voltage MOSFETs. In order to achieve the current high demand for balanced energy efficiency goals, the market is constantly pursuing MOSFETs with better performance.