Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETs

Abstract The single event burnout (SEB) effects of SiC power MOSFET are investigated by irradiations. An SEB is observed when drain biased above 400 V for 181Ta ion irradiation. The failure analysis shows a melting “hole” near the gate region due to the thermal runaway. Based on TCAD simulations, th...

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Main Authors: Chao Peng, Zhifeng Lei, Ziwen Chen, Shaozhong Yue, Zhangang Zhang, Yujuan He, Yun Huang
Format: Article
Language:English
Published: Wiley 2021-07-01
Series:IET Power Electronics
Subjects:
Online Access:https://doi.org/10.1049/pel2.12147
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author Chao Peng
Zhifeng Lei
Ziwen Chen
Shaozhong Yue
Zhangang Zhang
Yujuan He
Yun Huang
author_facet Chao Peng
Zhifeng Lei
Ziwen Chen
Shaozhong Yue
Zhangang Zhang
Yujuan He
Yun Huang
author_sort Chao Peng
collection DOAJ
description Abstract The single event burnout (SEB) effects of SiC power MOSFET are investigated by irradiations. An SEB is observed when drain biased above 400 V for 181Ta ion irradiation. The failure analysis shows a melting “hole” near the gate region due to the thermal runaway. Based on TCAD simulations, the impact ionization and parasitic bipolar are the key factors to trigger SEB in SiC MOSFET. Unlike the impact ionization, the turning on of the parasitic bipolar is not necessary for an SEB. But it will significantly reduce the threshold of SEB. Except for SEB, another permanent damage mode is also observed, which is manifested as the increase of leakage current and the abnormal of the output characteristics. This damage may be related to the latent track produced by heavy ion according to the failure analysis. The SEBs are observed for proton irradiations. The maximum LET value of the proton‐induced secondary ions can reach 13.9 MeV cm2/mg for 100 MeV proton. The simulations imply that most of the secondary ions can contribute to SEB. The biggest discrepancy from heavy ion irradiation is that no leakage current increases and output characteristics degradations are observed for the device without SEB after proton irradiation.
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spelling doaj.art-71ec578fe2aa434abec87b44eda816ae2022-12-22T03:22:34ZengWileyIET Power Electronics1755-45351755-45432021-07-011491700171210.1049/pel2.12147Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETsChao Peng0Zhifeng Lei1Ziwen Chen2Shaozhong Yue3Zhangang Zhang4Yujuan He5Yun Huang6Science and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou 511370 ChinaScience and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou 511370 ChinaScience and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou 511370 ChinaScience and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou 511370 ChinaScience and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou 511370 ChinaScience and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou 511370 ChinaScience and Technology on Reliability Physics and Application of Electronic Component Laboratory China Electronic Product Reliability and Environmental Testing Research Institute Guangzhou 511370 ChinaAbstract The single event burnout (SEB) effects of SiC power MOSFET are investigated by irradiations. An SEB is observed when drain biased above 400 V for 181Ta ion irradiation. The failure analysis shows a melting “hole” near the gate region due to the thermal runaway. Based on TCAD simulations, the impact ionization and parasitic bipolar are the key factors to trigger SEB in SiC MOSFET. Unlike the impact ionization, the turning on of the parasitic bipolar is not necessary for an SEB. But it will significantly reduce the threshold of SEB. Except for SEB, another permanent damage mode is also observed, which is manifested as the increase of leakage current and the abnormal of the output characteristics. This damage may be related to the latent track produced by heavy ion according to the failure analysis. The SEBs are observed for proton irradiations. The maximum LET value of the proton‐induced secondary ions can reach 13.9 MeV cm2/mg for 100 MeV proton. The simulations imply that most of the secondary ions can contribute to SEB. The biggest discrepancy from heavy ion irradiation is that no leakage current increases and output characteristics degradations are observed for the device without SEB after proton irradiation.https://doi.org/10.1049/pel2.12147ReliabilityInsulated gate field effect transistorsRadiation effects (semiconductor technology)
spellingShingle Chao Peng
Zhifeng Lei
Ziwen Chen
Shaozhong Yue
Zhangang Zhang
Yujuan He
Yun Huang
Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETs
IET Power Electronics
Reliability
Insulated gate field effect transistors
Radiation effects (semiconductor technology)
title Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETs
title_full Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETs
title_fullStr Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETs
title_full_unstemmed Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETs
title_short Experimental and simulation studies of radiation‐induced single event burnout in SiC‐based power MOSFETs
title_sort experimental and simulation studies of radiation induced single event burnout in sic based power mosfets
topic Reliability
Insulated gate field effect transistors
Radiation effects (semiconductor technology)
url https://doi.org/10.1049/pel2.12147
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