Novel Guard Ring Structure formed by Self-align Trench Implant in SiC MOSFET

Wei Chen Yu, Chia Long Hong, Chang Ching Tu, Yi Kai Hsiao, Hao Chung Kuo

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

SiC is a promising wide bandgap semiconductor for high power applications due to its high breakdown electric field and thermal conductivity. However, the breakdown voltage of SiC MOSFETs needs further improvement, and the guard ring (GR) design is critical for this purpose. This paper proposes a new GR structure for SiC MOSFETs called the self-align trench implant GR, which can improve the breakdown voltage by 10% to 221S.2V while using less chip area compared to the conventional design. Furthermore, this proposed self-align designed processes to combine the trench etch and GR implant not only eliminate the need of another photomask but can be integrated into the planar and trench MOSFET process flow.

原文???core.languages.en_GB???
主出版物標題WiPDA Asia 2023 - IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9798350337112
DOIs
出版狀態已出版 - 2023
事件2023 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2023 - Hsinchu, Taiwan
持續時間: 27 8月 202329 8月 2023

出版系列

名字WiPDA Asia 2023 - IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia

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???event.eventtypes.event.conference???2023 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2023
國家/地區Taiwan
城市Hsinchu
期間27/08/2329/08/23

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