Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer Layers

In this study, we propose a super junction insulated-gate bipolar transistor (SJBT) with separated n-buffer layers to solve a relatively long time for carrier annihilation during turn-off. This proposition improves the turn-off characteristic while maintaining similar on-state characteristics and br...

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Main Authors: Ki Yeong Kim, Joo Seok Noh, Tae Young Yoon, Jang Hyun Kim
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/12/11/1422
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author Ki Yeong Kim
Joo Seok Noh
Tae Young Yoon
Jang Hyun Kim
author_facet Ki Yeong Kim
Joo Seok Noh
Tae Young Yoon
Jang Hyun Kim
author_sort Ki Yeong Kim
collection DOAJ
description In this study, we propose a super junction insulated-gate bipolar transistor (SJBT) with separated n-buffer layers to solve a relatively long time for carrier annihilation during turn-off. This proposition improves the turn-off characteristic while maintaining similar on-state characteristics and breakdown voltage. The electrical characteristics of the devices were simulated by using the Synopsys Sentaurus technology computer-aided design (TCAD) simulation tool, and we compared the conventional SJBT with SJBT with separated n-buffer layers. The simulation tool result shows that turn-off loss (E<sub>off</sub>) drops by about 7% when on-state voltage (<i>V</i><sub>on</sub>) and breakdown voltage (BV) are similar. <i>V</i><sub>on</sub> increases by about 0.5% and BV decreases by only about 0.8%.
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spelling doaj.art-8fa3ec2d80e6491bafb59e6bafbe8e682023-11-23T00:27:19ZengMDPI AGMicromachines2072-666X2021-11-011211142210.3390/mi12111422Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer LayersKi Yeong Kim0Joo Seok Noh1Tae Young Yoon2Jang Hyun Kim3School of Electrical Engineering, Pukyong National University, Busan 48513, KoreaSchool of Electrical Engineering, Pukyong National University, Busan 48513, KoreaSchool of Electrical Engineering, Pukyong National University, Busan 48513, KoreaSchool of Electrical Engineering, Pukyong National University, Busan 48513, KoreaIn this study, we propose a super junction insulated-gate bipolar transistor (SJBT) with separated n-buffer layers to solve a relatively long time for carrier annihilation during turn-off. This proposition improves the turn-off characteristic while maintaining similar on-state characteristics and breakdown voltage. The electrical characteristics of the devices were simulated by using the Synopsys Sentaurus technology computer-aided design (TCAD) simulation tool, and we compared the conventional SJBT with SJBT with separated n-buffer layers. The simulation tool result shows that turn-off loss (E<sub>off</sub>) drops by about 7% when on-state voltage (<i>V</i><sub>on</sub>) and breakdown voltage (BV) are similar. <i>V</i><sub>on</sub> increases by about 0.5% and BV decreases by only about 0.8%.https://www.mdpi.com/2072-666X/12/11/1422super junctionIGBTp-pillarn-buffer layeron-state voltagebreakdown voltage
spellingShingle Ki Yeong Kim
Joo Seok Noh
Tae Young Yoon
Jang Hyun Kim
Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer Layers
Micromachines
super junction
IGBT
p-pillar
n-buffer layer
on-state voltage
breakdown voltage
title Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer Layers
title_full Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer Layers
title_fullStr Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer Layers
title_full_unstemmed Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer Layers
title_short Improvement in Turn-Off Loss of the Super Junction IGBT with Separated n-Buffer Layers
title_sort improvement in turn off loss of the super junction igbt with separated n buffer layers
topic super junction
IGBT
p-pillar
n-buffer layer
on-state voltage
breakdown voltage
url https://www.mdpi.com/2072-666X/12/11/1422
work_keys_str_mv AT kiyeongkim improvementinturnofflossofthesuperjunctionigbtwithseparatednbufferlayers
AT jooseoknoh improvementinturnofflossofthesuperjunctionigbtwithseparatednbufferlayers
AT taeyoungyoon improvementinturnofflossofthesuperjunctionigbtwithseparatednbufferlayers
AT janghyunkim improvementinturnofflossofthesuperjunctionigbtwithseparatednbufferlayers