Actively controlled anode auxiliary gate super-junction insulated gate bipolar transistor with extremely low Eoff

Author:

Li LupingORCID,Li Zehong,Chen Peng,Yang Yuanzhen,Rao Qiansheng,Wang TongyangORCID,Zhao YishangORCID,Yang YangORCID,Ren Min

Abstract

Abstract When dealing with the super-junction insulated gate bipolar transistor (SJ-IGBT), due to its unipolar/bipolar mixed conduction mechanism, the approaches to improve its V on E off are not exactly the same as for non-SJ IGBTs. In the pursuit of extremely low E off , a planar auxiliary anode gate SJ-IGBT (AAG-SJ-IGBT) is proposed based on a 650 V SJ-IGBT to realize a unipolar turn-off as observed in SJ-MOSFETs accompanied by fast switching and extremely low E off . The planar auxiliary anode gate provides similar effects but better feasibility than conventional trench ones. Sentaurus TCAD simulation results for the proposed AAG-SJ-IGBT indicate a 69% smaller t doff and a 54% lower E off than the FP-SJ-IGBT, and its V on E off is significantly optimized from cathode-improved SJ-IGBTs. The analysis of carrier and current density reveals the static and dynamic characteristics of the AAG-SJ-IGBT and the principle for excellent V on E off trade-off.

Funder

Chongqing Natural Science Foundation of China

Publisher

IOP Publishing

Subject

Materials Chemistry,Electrical and Electronic Engineering,Condensed Matter Physics,Electronic, Optical and Magnetic Materials

Reference24 articles.

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