An AlN/Al0.85Ga0.15N high electron mobility transistor
Abstract
An AlN barrier high electron mobility transistor (HEMT) based on the AlN/Al0.85Ga0.15N heterostructure was grown, fabricated, and electrically characterized, thereby extending the range of Al composition and bandgap for AlGaN channel HEMTs. An etch and regrowth procedure was implemented for source and drain contact formation. A breakdown voltage of 810 V was achieved without a gate insulator or field plate. Excellent gate leakage characteristics enabled a high Ion/Ioff current ratio greater than 107 and an excellent subthreshold slope of 75 mV/decade. A large Schottky barrier height of 1.74 eV contributed to these results. In conclusion, the room temperature voltage-dependent 3-terminal off-state drain current was adequately modeled with Frenkel-Poole emission.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1325715
- Report Number(s):
- SAND-2016-6904J
Journal ID: ISSN 0003-6951; APPLAB; 645875
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 109; Journal Issue: 3; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; MODFETs; III-V semiconductors; Schottky barriers; electrical resistivity; leakage currents
Citation Formats
Baca, Albert G., Armstrong, Andrew M., Allerman, Andrew A., Douglas, Erica A., Sanchez, Carlos A., King, Michael P., Coltrin, Michael E., Fortune, Torben R., and Kaplar, Robert J. An AlN/Al0.85Ga0.15N high electron mobility transistor. United States: N. p., 2016.
Web. doi:10.1063/1.4959179.
Baca, Albert G., Armstrong, Andrew M., Allerman, Andrew A., Douglas, Erica A., Sanchez, Carlos A., King, Michael P., Coltrin, Michael E., Fortune, Torben R., & Kaplar, Robert J. An AlN/Al0.85Ga0.15N high electron mobility transistor. United States. https://doi.org/10.1063/1.4959179
Baca, Albert G., Armstrong, Andrew M., Allerman, Andrew A., Douglas, Erica A., Sanchez, Carlos A., King, Michael P., Coltrin, Michael E., Fortune, Torben R., and Kaplar, Robert J. Fri .
"An AlN/Al0.85Ga0.15N high electron mobility transistor". United States. https://doi.org/10.1063/1.4959179. https://www.osti.gov/servlets/purl/1325715.
@article{osti_1325715,
title = {An AlN/Al0.85Ga0.15N high electron mobility transistor},
author = {Baca, Albert G. and Armstrong, Andrew M. and Allerman, Andrew A. and Douglas, Erica A. and Sanchez, Carlos A. and King, Michael P. and Coltrin, Michael E. and Fortune, Torben R. and Kaplar, Robert J.},
abstractNote = {An AlN barrier high electron mobility transistor (HEMT) based on the AlN/Al0.85Ga0.15N heterostructure was grown, fabricated, and electrically characterized, thereby extending the range of Al composition and bandgap for AlGaN channel HEMTs. An etch and regrowth procedure was implemented for source and drain contact formation. A breakdown voltage of 810 V was achieved without a gate insulator or field plate. Excellent gate leakage characteristics enabled a high Ion/Ioff current ratio greater than 107 and an excellent subthreshold slope of 75 mV/decade. A large Schottky barrier height of 1.74 eV contributed to these results. In conclusion, the room temperature voltage-dependent 3-terminal off-state drain current was adequately modeled with Frenkel-Poole emission.},
doi = {10.1063/1.4959179},
journal = {Applied Physics Letters},
number = 3,
volume = 109,
place = {United States},
year = {Fri Jul 22 00:00:00 EDT 2016},
month = {Fri Jul 22 00:00:00 EDT 2016}
}
Web of Science
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