Reliability of GaN high-electron-mobility transistors: State of the art and perspectives

G Meneghesso, G Verzellesi, F Danesin… - … on Device and …, 2008 - ieeexplore.ieee.org
Failure modes and mechanisms of AlGaN/GaN high-electron-mobility transistors are
reviewed. Data from three de-accelerated tests are presented, which demonstrate a close …

A current-transient methodology for trap analysis for GaN high electron mobility transistors

J Joh, JA Del Alamo - IEEE Transactions on Electron Devices, 2010 - ieeexplore.ieee.org
Trap** is one of the most deleterious effects that limit performance and reliability in GaN
HEMTs. In this paper, we present a methodology to study trap** characteristics in GaN …

Photoionization spectroscopy of deep defects responsible for current collapse in nitride-based field effect transistors

PB Klein, SC Binari - Journal of Physics: Condensed Matter, 2003 - iopscience.iop.org
This review is concerned with the characterization and identification of the deep centres that
cause current collapse in nitride-based field effect transistors. Photoionization spectroscopy …

Effects of nitrogen deficiency on electronic properties of AlGaN surfaces subjected to thermal and plasma processes

T Hashizume, H Hasegawa - Applied surface science, 2004 - Elsevier
Effects of device processing on chemical and electronic properties of AlGaN surfaces were
investigated. The X-ray photoelectron spectroscopy analysis showed serious deterioration …

Measurement of channel temperature in GaN high-electron mobility transistors

J Joh, JA Del Alamo, U Chowdhury… - … on Electron Devices, 2009 - ieeexplore.ieee.org
In this paper, a simple and reliable method to estimate the channel temperature of GaN high-
electron mobility transistors (HEMTs) is proposed. The technique is based on electrical …

Improved reliability of AlGaN-GaN HEMTs using an NH/sub 3/plasma treatment prior to SiN passivation

AP Edwards, JA Mittereder, SC Binari… - IEEE electron device …, 2005 - ieeexplore.ieee.org
A passivation method has been developed which reduces the degradation of AlGaN-GaN
high electron mobility transistor (HEMT) electrical properties caused by extended dc bias or …

AlN passivation over AlGaN/GaN HFETs for surface heat spreading

N Tsurumi, H Ueno, T Murata, H Ishida… - … on Electron devices, 2010 - ieeexplore.ieee.org
Reduction of thermal resistance in AlGaN/GaN heterojunction field-effect transistors (HFETs)
is critical for further increase in their output power to be handled in these promising material …

A simple current collapse measurement technique for GaN high-electron mobility transistors

J Joh, JA Del Alamo, J Jimenez - IEEE Electron Device Letters, 2008 - ieeexplore.ieee.org
Current collapse in GaN high-electron mobility transistors (HEMTs) is a temporary reduction
of drain–current immediately after the application of high voltage. Current collapse limits the …

Accurate measurement of channel temperature for AlGaN/GaN HEMTs

M Wu, XH Ma, L Yang, Q Zhu, M Zhang… - … on Electron Devices, 2018 - ieeexplore.ieee.org
This paper proposes a novel electrical method for the determination of channel temperature
in AlGaN/GaN high-electron mobility transistors. A test structure combining various device …

Impact of electrical degradation on trap** characteristics of GaN high electron mobility transistors

J Joh, JA del Alamo - 2008 IEEE International Electron Devices …, 2008 - ieeexplore.ieee.org
One of the most deleterious effects of electrical degradation of GaN HEMTs is an increase in
carrier trap** and subsequent current collapse. In this work, we have investigated the …