N-polar GaN epitaxy and high electron mobility transistors

MH Wong, S Keller, SD Nidhi… - Semiconductor …, 2013 - iopscience.iop.org
This paper reviews the progress of N-polar ($000\mathop 1\limits^\_ $) GaN high frequency
electronics that aims at addressing the device scaling challenges faced by GaN high …

Development of GaN HEMTs fabricated on silicon, silicon-on-insulator, and engineered substrates and the heterogeneous integration

LH Hsu, YY Lai, PT Tu, C Langpoklakpam, YT Chang… - Micromachines, 2021 - mdpi.com
GaN HEMT has attracted a lot of attention in recent years owing to its wide applications from
the high-frequency power amplifier to the high voltage devices used in power electronic …

N-polar GaN cap MISHEMT with record power density exceeding 6.5 W/mm at 94 GHz

S Wienecke, B Romanczyk, M Guidry… - IEEE Electron …, 2017 - ieeexplore.ieee.org
A novel N-Polar GaN cap (MIS) high electron mobility transistor demonstrating record 6.7-
W/mm power density with an associated power-added efficiency of 14.4% at 94 GHz is …

N-polar deep recess MISHEMTs with record 2.9 W/mm at 94 GHz

S Wienecke, B Romanczyk, M Guidry… - IEEE Electron …, 2016 - ieeexplore.ieee.org
W-band power performance is reported on an N-polar GaN HEMT for the first time, resulting
in a record output power density for any GaN device on a sapphire substrate. This result is …

Investigation of the interface between LPCVD-SiNx gate dielectric and III-nitride for AlGaN/GaN MIS-HEMTs

Z Liu, S Huang, Q Bao, X Wang, K Wei… - Journal of Vacuum …, 2016 - pubs.aip.org
The interface between silicon nitride (SiN x) gate dielectric grown by low pressure chemical
vapor deposition (LPCVD) and III-nitride heterostructure is investigated by a systematical …

Comparative study of AlGaN/GaN metal–oxide–semiconductor heterostructure field-effect transistors with Al2O3 and HfO2 gate oxide

E Miyazaki, Y Goda, S Kishimoto, T Mizutani - Solid-state electronics, 2011 - Elsevier
AlGaN/GaN metal–oxide–semiconductor heterostructure field-effect transistors (MOSHFETs)
with Al 2 O 3 gate oxide which was deposited by atomic layer deposition (ALD) were …

N-polar III-nitride transistors

MH Wong, UK Mishra - Semiconductors and Semimetals, 2019 - Elsevier
This chapter reviews the historical development and present status of N-polar 000 1¯ GaN
high electron mobility transistors (HEMTs) that aim at addressing the device scaling …

Interface roughness scattering in ultra-thin N-polar GaN quantum well channels

U Singisetti, M Hoi Wong, UK Mishra - Applied Physics Letters, 2012 - pubs.aip.org
In this Letter, we report experimental and theoretical investigations on the effect of the
channel thickness on the low-field electron mobility in N-polar GaN quantum well channels …

Very high channel conductivity in ultra-thin channel N-polar GaN/(AlN, InAlN, AlGaN) high electron mobility hetero-junctions grown by metalorganic chemical vapor …

J Lu, D Denninghoff, R Yeluri, S Lal, G Gupta… - Applied Physics …, 2013 - pubs.aip.org
Different back barrier designs comprising of AlN, AlGaN, and InAlN layers are investigated
for ultra-thin GaN channel N-polar high-electron-mobility-transistors grown by metalorganic …

High-performance N-polar GaN enhancement-mode device technology

U Singisetti, MH Wong, UK Mishra - Semiconductor science and …, 2013 - iopscience.iop.org
In this paper, we report the recent progress in the high-frequency performance of
enhancement-mode devices in the novel N-polar GaN technology and provide a pathway for …