In-0.52(AlxGa1-x)(0.48)As/In0.53Ga0.47As(0<=x<=1) heterostructure and its application on HEMTs

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Title:	In-0.52(AlxGa1-x)(0.48)As/In0.53Ga0.47As(0<=x<=1) heterostructure and its application on HEMTs
Authors:	Wu,CS;Chan,YJ;Chen,CH;Shieh,JL;Chyi,JL
Contributors:	電機工程研究所
Keywords:	HETEROJUNCTION
Date:	1996
Issue Date:	2010-06-29 20:22:25 (UTC+8)
Publisher:	中央大學
Abstract:	Quaternary In-0.52(AlxGa1-x)(0.48)As(0 less than or equal to x less than or equal to 1) compounds lattice-matched InP substrates were grown and characterized. The engery bandgap (E(g)) of these In-0.52(AlxGa1-x)(0.48)As compound were (0.806+0.711x) eV. The conduction band discontinuity (Delta E(c)) at the In-0.52(AlxGa1-x)(0.48)As/In0.53Ga0.47As (x=0.9 and 0.75) heterojunctions was approximately (0.68 +/- 0.01)Delta E(g). The quaternary In-0.52(Al0.9Ga0.1)(0.48)As/In0.53Ga0.47As Q-HEMTs with a gate-length of 0.8 mu m revealed an extrinsic transconductance (g(m)) of 295 mS/mm, an f(T) of 35 GHz and an f(max) of 76 GHz. This Quaternary HEMT was proven to be more reliable, comparing with the conventional InAlAs/InGaAs HEMTs[1].
Relation:	COMPOUND SEMICONDUCTORS 1995
Appears in Collections:	[Graduate Institute of Electrical Engineering] journal & Dissertation

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