A Step Trench and Field Limiting Ring Termination Structure with n+ Short Anode Region

Autor: Qi Zhang, Wuyun, Cailin Wang, Jingtao Ge
Rok vydání: 2019
Předmět:
Zdroj: 2019 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC).
DOI: 10.1109/edssc.2019.8754389
Popis: A step trench and field limiting ring(FLR) termination structure with n+ short anode region is analyzed by using 2-dimensional numerical simulation in this paper. Take for 4.5kV Dual-GCT as an example, the improved structures with the whole and partial n+ short anode and the conventional structure without n+ short anode are compared, the results show that the partial n+ short anode can reduce the leakage current and the negative differential resistance effect. In addition, the partial n+ short anode structure can reduce the time of turn-off and has lower peak electric field during turnoff. Moreover, this design basically does not change the other characteristics of the device.
Databáze: OpenAIRE