@article{274fa9a2a5a2416e982a8a458fa5164c,
title = "Multidimensional thermal analysis of an ultrawide bandgap AlGaN channel high electron mobility transistor",
abstract = "Improvements in radio frequency and power electronics can potentially be realized with ultrawide bandgap materials such as aluminum gallium nitride (AlxGa1-xN). Multidimensional thermal characterization of an Al0.30Ga0.70N channel high electron mobility transistor (HEMT) was done using Raman spectroscopy and thermoreflectance thermal imaging to experimentally determine the lateral and vertical steady-state operating temperature profiles. An electrothermal model of the Al0.30Ga0.70N channel HEMT was developed to validate the experimental results and investigate potential device-level thermal management. While the low thermal conductivity of this III-N ternary alloy system results in more device self-heating at room temperature, the temperature insensitive thermal and electrical output characteristics of AlxGa1-xN may open the door for extreme temperature applications.",
author = "Lundh, {James Spencer} and Bikramjit Chatterjee and Yiwen Song and Baca, {Albert G.} and Kaplar, {Robert J.} and Beechem, {Thomas E.} and Allerman, {Andrew A.} and Armstrong, {Andrew M.} and Klein, {Brianna A.} and Anushka Bansal and Disha Talreja and Alexej Pogrebnyakov and Eric Heller and Venkatraman Gopalan and Redwing, {Joan M.} and Foley, {Brian M.} and Sukwon Choi",
note = "Funding Information: Efforts by the Pennsylvania State University was provided by the AFOSR Young Investigator Program (Grant No. FA9550-17-1-0141, Program Officers: Dr. Brett Pokines and Dr. Michael Kendra, also monitored by Dr. Kenneth Goretta). Additional funding (Anushka Bansal and Joan M. Redwing) was provided by the NSF (No. DMR-1808900). Disha Talreja, Alexej Pogrebnyakov, and Venkatraman Gopalan acknowledge support from the Penn State NSF-MRSEC Center for the Nanoscale Science Grant No. DMR 1420620. Sandia National Laboratories is a multi-mission laboratory managed and operated by the National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract No. DE-NA0003525. Funding Information: Funding for efforts by the Pennsylvania State University was provided by the AFOSR Young Investigator Program (Grant No. FA9550-17-1-0141, Program Officers: Dr. Brett Pokines and Dr. Michael Kendra, also monitored by Dr. Kenneth Goretta). Additional funding (Anushka Bansal and Joan M. Redwing) was provided by the NSF (No. DMR-1808900). Disha Talreja, Alexej Pogrebnyakov, and Venkatraman Gopalan acknowledge support from the Penn State NSF-MRSEC Center for the Nanoscale Science Grant No. DMR 1420620. Sandia National Laboratories is a multi-mission laboratory managed and operated by the National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy{\textquoteright}s National Nuclear Security Administration under contract No. DE-NA0003525. Publisher Copyright: {\textcopyright} 2019 Author(s).",
year = "2019",
month = oct,
day = "7",
doi = "10.1063/1.5115013",
language = "English (US)",
volume = "115",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "15",
}