A Novel IGBT with SIPOS Pillars Achieving Ultralow Power Loss in TCAD Simulation Study-Reference-Cited by-同舟云学术

A Novel IGBT with SIPOS Pillars Achieving Ultralow Power Loss in TCAD Simulation Study

Published:2024-06-05 Issue:6 Volume:15 Page:759
ISSN:2072-666X
Container-title:Micromachines
language:en
Short-container-title:Micromachines

Author:

Yuan Song¹²^ORCID,Yan Zhaoheng¹²^ORCID,Li Yanzuo¹²,Wang Ying¹²,Liu Qifan¹²,Zhan Xinbin¹²,Jiang Xi¹²,He Yanjing¹²,Gong Xiaowu¹²

Affiliation:

1. The Key Laboratory of Ministry of Education for Wide Bandgap Semiconductor Materials and Devices, School of Microelectronics, Xidian University, Xi’an 710071, China

2. The Guangzhou Institute of Technology, Xidian University, Guangzhou 510555, China

Abstract

A novel insulated gate bipolar transistor with Semi-Insulated POly Silicon (SIPOS) is presented in this paper and analyzed through TCAD simulation. In the off state, the SIPOS-IGBT can obtain a uniform electric field distribution, which enables a thinner drift region under the same breakdown voltage. In the on state, an electron accumulation layer is formed along the SIPOS, which can increase the injection level of the “PiN region” in the device, and the carrier concentration in the drift region is also increased due to the charge balance effect. Moreover, the SIPOS-IGBT can achieve a quick and thorough depletion in the drift region during the turn-off transient, which can greatly reduce the turn-off loss of the SIPOS-IGBT. These advantages improve the tradeoff between the conduction and switching losses. According to the simulation results, the SIPOS-IGBT obtained a 58% lower turn loss than that of a field-stop (FS) IGBT and 30% lower than an HK-IGBT with the same on-state voltage.

Funder

the Fundamental Research Funds for the Central Universities

the Young Scientists Fund of National Natural Science Foundation of China

Publisher

MDPI AG

Link

https://www.mdpi.com/2072-666X/15/6/759/pdf

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