Total-Ionizing-Dose Radiation-Induced Electric Field Redistribution Model and Hardening Method for SGT MOSFET

In this article, an analytical model for the total-ionizing-dose (TID) radiation-induced electric field redistribution (RIER) in the drift region is established based on the Poisson equation, which explains the "slow-fast-slow" degradation trend of breakdown voltage (BV) of the shield gate...

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Veröffentlicht in:IEEE transactions on electron devices 2023-11, Vol.70 (11), p.5543-5549
Hauptverfasser: Ren, Min, Zhang, Shuping, Tu, Junjie, Tao, Lin, Zhou, Ziyi, Wu, Yining, Li, Zehong, Zhang, Bo
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container_end_page 5549
container_issue 11
container_start_page 5543
container_title IEEE transactions on electron devices
container_volume 70
creator Ren, Min
Zhang, Shuping
Tu, Junjie
Tao, Lin
Zhou, Ziyi
Wu, Yining
Li, Zehong
Zhang, Bo
description In this article, an analytical model for the total-ionizing-dose (TID) radiation-induced electric field redistribution (RIER) in the drift region is established based on the Poisson equation, which explains the "slow-fast-slow" degradation trend of breakdown voltage (BV) of the shield gate trench metal-oxide-semiconductor field effect transistor (SGT MOSFET) with the increase of the radiation dose in the experiments. Moreover, a new radiation-hardened SGT MOSFET based on the internal electric field modulation (IEM-SGT) concept is proposed. The simulation shows that IEM-SGT can achieve five times better radiation resistance of BV than that of the non-hardened device, with a small deterioration in electrical performance.
doi_str_mv 10.1109/TED.2023.3319281
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Moreover, a new radiation-hardened SGT MOSFET based on the internal electric field modulation (IEM-SGT) concept is proposed. 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subjects Breakdown voltage (BV)
Degradation
Electric fields
Electron traps
Field effect transistors
internal electric field modulation (IEM)
Logic gates
Mathematical models
Metal oxide semiconductors
MOSFET
MOSFETs
Poisson equation
Radiation dosage
Radiation effects
Radiation hardening
radiation resistance
Radiation tolerance
radiation-induced electric field redistribution (RIER)
Semiconductor device modeling
Semiconductor devices
shield gate trench metal-oxide-semiconductor field effect transistor (SGT MOSFET)
total-ionizing-dose (TID)
title Total-Ionizing-Dose Radiation-Induced Electric Field Redistribution Model and Hardening Method for SGT MOSFET
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