Compositionally graded III-nitride alloys: Building blocks for efficient ultraviolet optoelectronics and power electronics

H Zhang, C Huang, K Song, H Yu, C Xing… - Reports on Progress …, 2021 - iopscience.iop.org
Wide bandgap aluminum gallium nitride (AlGaN) semiconductor alloys have established
themselves as the key materials for building ultraviolet (UV) optoelectronic and power …

Applications and impacts of nanoscale thermal transport in electronics packaging

RJ Warzoha, AA Wilson… - Journal of …, 2021 - asmedigitalcollection.asme.org
This review introduces relevant nanoscale thermal transport processes that impact thermal
abatement in power electronics applications. Specifically, we highlight the importance of …

[HTML][HTML] Toward AlGaN channel HEMTs on AlN: Polarization-induced 2DEGs in AlN/AlGaN/AlN heterostructures

J Singhal, R Chaudhuri, A Hickman, V Protasenko… - APL Materials, 2022 - pubs.aip.org
Due to its high breakdown electric field, the ultra-wide bandgap semiconductor AlGaN has
garnered much attention recently as a promising channel material for next-generation high …

[HTML][HTML] Al-rich AlGaN based transistors

AG Baca, AM Armstrong, BA Klein… - Journal of Vacuum …, 2020 - pubs.aip.org
Research results for AlGaN-channel transistors are reviewed as they have progressed from
low Al-content and long-channel devices to Al-rich and short-channel RF devices. Figure of …

High-performance AlGaN double channel HEMTs with improved drain current density and high breakdown voltage

Y Zhang, Y Li, J Wang, Y Shen, L Du, Y Li… - Nanoscale Research …, 2020 - Springer
In this work, AlGaN double channel heterostructure is proposed and grown by metal organic
chemical vapor deposition (MOCVD), and high-performance AlGaN double channel high …

AlN/Al0. 5Ga0. 5N HEMTs with heavily Si-doped degenerate GaN contacts prepared via pulsed sputtering

R Maeda, K Ueno, A Kobayashi… - Applied Physics …, 2022 - iopscience.iop.org
This paper reports AlN barrier Al 0.5 Ga 0.5 N high electron mobility transistors (HEMTs) with
heavily Si-doped degenerate GaN contacts prepared by pulsed sputtering deposition …

Investigation of AlGaN Channel HEMTs on β-Ga2O3 Substrate for High-Power Electronics

A Revathy, CS Boopathi, OI Khalaf, CAT Romero - Electronics, 2022 - mdpi.com
The wider bandgap AlGaN (Eg> 3.4 eV) channel-based high electron mobility transistors
(HEMTs) are more effective for high voltage operation. High critical electric field and high …

Nitrogen-Polar Polarization-Doped Field-Effect Transistor Based on Al0.8Ga0.2N/AlN on SiC With Drain Current Over 100 mA/mm

J Lemettinen, N Chowdhury, H Okumura… - IEEE Electron …, 2019 - ieeexplore.ieee.org
This letter reports the demonstration of N-polar Al 0.8 Ga 0.2 N/AlN continuously-graded-
channel polarization-doped field-effect transistors (PolFETs) on SiC. A PolFET with a source …

[HTML][HTML] Plasma etching of wide bandgap and ultrawide bandgap semiconductors

SJ Pearton, EA Douglas, RJ Shul, F Ren - Journal of Vacuum Science …, 2020 - pubs.aip.org
The precise patterning of front-side mesas, backside vias, and selective removal of ternary
alloys are all needed for power device fabrication in the various wide bandgap (AlGaN/GaN …

Al0. 75Ga0. 25N/Al0. 6Ga0. 4N heterojunction field effect transistor with fT of 40 GHz

H Xue, CH Lee, K Hussian, T Razzak… - Applied Physics …, 2019 - iopscience.iop.org
Abstract An Al 0.75 Ga 0.25 N/Al 0.6 Ga 0.4 N heterostructure field effect transistor with
graded MBE-regrown contacts is designed, grown, and fabricated on AlN/sapphire …