Pinchbeck, J., Lee, K.B. orcid.org/0000-0002-5374-2767, Jiang, S. et al. (1 more author) (2021) Dual metal gate AlGaN/GaN high electron mobility transistors with improved transconductance and reduced short channel effects. Journal of Physics D: Applied Physics, 54 (10). 105104. ISSN 0022-3727
Abstract
AlGaN/GaN high electron mobility transistors with a range of dual metal gate (DMG) lengths have been fabricated and studied. An improvement in transconductance up to 9% has been measured in the DMG devices in comparison to the conventional single metal gate devices. This is attributed to the distribution of the electric field under the gate region as a result of two gate metals. The drain induced barrier lowering is also suppressed using the sub-µm DMG devices, with a drain induced barrier lowering decrease of around 50% due to a potential shielding effect in the two-dimensional electron gas channel.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license (http://creativecommons.org/licenses/by/4.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
Keywords: | GaN; HEMTs; transconductance; drain induced barrier lowering |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/N015878/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 23 Feb 2021 13:06 |
Last Modified: | 23 Feb 2021 13:06 |
Status: | Published |
Publisher: | IOP Publishing |
Refereed: | Yes |
Identification Number: | 10.1088/1361-6463/abcb34 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:170483 |
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