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@ARTICLE{Yang:138276,
author = {Yang, Shu and Huang, Sen and Schnee, Michael and Zhao,
Qing-Tai and Schubert, Jürgen and Chen, Kevin J.},
title = {{E}nhancement-{M}ode {L}a{L}u{O}3–{A}l{G}a{N}/{G}a{N}
{M}etal–{I}nsulator–{S}emiconductor
{H}igh-{E}lectron-{M}obility {T}ransistors {U}sing
{F}luorine {P}lasma {I}on {I}mplantation},
journal = {Japanese journal of applied physics},
volume = {52},
issn = {1347-4065},
address = {Tokyo},
publisher = {Inst. of Pure and Applied Physics},
reportid = {FZJ-2013-04433},
pages = {08JN02 -},
year = {2013},
abstract = {In this work, enhancement-mode (E-mode) AlGaN/GaN
metal–insulator–semiconductor high-electron-mobility
transistors (MIS-HEMTs) with high-κ LaLuO3 (LLO) gate
dielectric were fabricated by deploying the CF4 plasma
treatment technique in a gate-dielectric-first planar
process. CF4 plasma treatment can shift the threshold
voltage from -2.3 V [for depletion-mode (D-mode) LLO
MIS-HEMTs] to 0.6 V (for E-mode LLO MIS-HEMTs). Transmission
electron microscopy (TEM) and X-ray photoelectron
spectroscopy (XPS) results suggest that fluorine ions could
penetrate through the polycrystalline/amorphous LLO film and
be implanted into the (Al)GaN barrier layer. The primary
threshold voltage (VTH) shift mechanism of the E-mode LLO
MIS-HEMTs is the negatively-charged fluorine ions in
(Al)GaN, while fluorine atoms form chemical bonds with La/Lu
atoms in the fluorinated LLO film. The E-mode LLO MIS-HEMTs
exhibit a drive drain current density of 352 mA/mm at VGS =
2.5 V and a peak transconductance (Gm) of ∼193 mS/mm.
Significant suppression of current collapse and low dynamic
ON-resistance are obtained in the E-mode LLO MIS-HEMTs under
high-drain-bias switching conditions.},
cin = {PGI-9 / JARA-FIT / PGI-6},
ddc = {530},
cid = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)VDB881 /
I:(DE-Juel1)PGI-6-20110106},
pnm = {421 - Frontiers of charge based Electronics (POF2-421)},
pid = {G:(DE-HGF)POF2-421},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000323883100163},
doi = {10.7567/JJAP.52.08JN02},
url = {https://juser.fz-juelich.de/record/138276},
}