Journal article
Vertical geometry 33.2 A, 4.8 MWcm(2) Ga2O3 field-plated Schottky rectifier arrays
Applied physics letters, v 114(23)
10 Jun 2019
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Abstract
The performance of arrays consisting of 21 -Ga2O3 field-plated rectifiers fabricated on thick epitaxial layers (n-type carrier concentration approximate to 1.6x10(16) cm(-3)) grown on conducting substrates (carrier concentration 3x10(19) cm(-3)) is reported. We show that by interconnecting the output of 21 smaller (0.4x0.4mm(2) to 1x1mm(2), total area 0.09cm(2)) individual rectifiers using e-beam deposited Au, we can achieve a high total forward output current of 33.2A, at 4.25V in the single-sweep voltage mode, and a low forward turn-on voltage of 2.9V (defined at 100Acm(-2)) and maintain a reverse breakdown voltage of 240V (defined at 1Acm(-2)). The current density was 376Acm(-2), and the on-state resistance was 0.012 cm(2). The total forward current was 10A at 1.9V and 22A at 3V. The power figure-of-merit for the array, V-B(2)/R-ON, was 4.8MWcm(-2), with a reverse recovery time of individual rectifiers of 32ns. The on/off ratio of the rectifier array was in the range of 10(5)-10(10) for +1V/-1 to -100V.
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Details
- Title
- Vertical geometry 33.2 A, 4.8 MWcm(2) Ga2O3 field-plated Schottky rectifier arrays
- Creators
- Jiancheng Yang - University of FloridaMinghan Xian - University of FloridaPatrick Carey - University of FloridaChaker Fares - University of FloridaJessica Partain - University of FloridaFan Ren - University of FloridaMarko Tadjer - United States Naval Research LaboratoryElaf Anber - Drexel UniversityDan Foley - Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USAAndrew Lang - Drexel UniversityJames Hart - Drexel UniversityJames Nathaniel - Drexel UniversityMitra L. Taheri - Drexel UniversityS. J. Pearton - University of FloridaAkito Kuramata - Tamura Corporation and Novel Crystal Technology, Inc., Sayama, Saitama 350-1328, Japan
- Publication Details
- Applied physics letters, v 114(23)
- Publisher
- American Institute of Physics
- Number of pages
- 5
- Grant note
- DMR 1856662 / NSF; National Science Foundation (NSF) HDTRA1-17-1-011 / Department of the Defense, Defense Threat Reduction Agency; United States Department of Defense; Defense Threat Reduction Agency N62909-16-1-2217 / ONR Global N00014-15-1-2392 / Office of Naval Research 1429661 / NSF MRI Award; National Science Foundation (NSF); NSF - Office of the Director (OD) "research and development project for innovation technique of energy conservation" of the New Energy and Industrial Technology Development Organization (NEDO), Japan; New Energy and Industrial Technology Development Organization (NEDO)
- Resource Type
- Journal article
- Language
- English
- Web of Science ID
- WOS:000471696100042
- Scopus ID
- 2-s2.0-85067259185
- Other Identifier
- 991019330914304721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Physics, Applied