University of Electronic Science and Technology of China

Institute of Electronic and Information Engineering of Uestc in Guangdong

Cong Di

Bo Zhang

Zehong Li

Jinping Zhang

Min Ren

Wei Gao

Yumeng Zhang

Jingzhi Xiong

A junction termination with an internal field plate, the field plate structure and the junction termination extension region are folded inside the device to make full use of the thickness of the drift region in the body, thereby reducing the area of the termination and relieving the electric field concentration at the end of the PN junction. The breakdown position is transferred from the surface into the body of the original PN junction, and the withstand voltage of termination can reach to the breakdown voltage of the parallel plane junction. Under such design, a smaller area can be obtained than that of the conventional structure at the same withstand voltage.

Folded termination with internal field plate

Growing community of inventors

Chengdu, China

Cong Di