Positive and Negative Bias Temperature Instability on Crosstalk-Stressed Symmetrical & Asymmetrical Double-Trench SiC MOSFETs

Juefei Yang, Saeed Jahdi, Bernard H Stark, Chengjun Shen, Olayiwola Alatise, Jose Ortiz Gonzalez, Phil H Mellor

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

The bias temperature instability (BTI) has been an issue for SiC MOSFET. The device performance would vary with the induced threshold drift. In this paper, the peak shoot-through current during crosstalk under the impact BTI is investigated in regard to increase of stressing time and recovery time for SiC symmetrical and asymmetrical double-trench MOSFET as well as planar MOSFET for comparison purpose. The change of threshold voltage under BTI is measured and are compared with the shoot-through. The measurement of threshold drift under accelerated gate stressing is also conducted and the impact of temperature is investigated.
Original languageEnglish
Title of host publication2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Place of PublicationDetroit, MI, USA
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages7
ISBN (Electronic)9781728193878
ISBN (Print)9781728193885
DOIs
Publication statusPublished - 30 Nov 2022
Event2022 IEEE Energy Conversion Congress and Exposition (ECCE) -
Duration: 9 Oct 202213 Oct 2022

Publication series

Name Energy Conversion Congress and Exposition, (ECCE)
PublisherIEEE
ISSN (Print)2329-3721
ISSN (Electronic)2329-3748

Conference

Conference2022 IEEE Energy Conversion Congress and Exposition (ECCE)
Period9/10/2213/10/22

Bibliographical note

Funding Information:
This work is supported by the UK EPSRC Supergen Energy Networks Hub under grant number EP/S00078X/2.

Publisher Copyright:
© 2022 IEEE.

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