Presentation 2006-11-24
Effects of heterointerface flatness on device performance of InP-based HEMT : Reduction of interface roughness scattering using (411)A-oriented substrate
Issei WATANABE, Keisuke SHINOHARA, Takahiro KITADA, Satoshi SHIMOMURA, Akira ENDOH, Yoshimi YAMASHITA, Takashi MIMURA, Satoshi HIYAMIZU, Toshiaki MATSUI,
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Abstract(in English) An extremely high transconductance g_m of 2.25S/mm and a cutoff frequency f_T of 310GHz was achieved at a cryogenic temperature (16K) in a 195-nm-gate In_<0.75>Ga_<0.25>As/In_<0.52>Al_<0.48>As high electron mobility transistor (HEMT) with (411)A super-flat interfaces (effectively atomically flat heterointerfaces over a wafer-size area). In this contribution, we investigated dc and radio frequency (RF) characteristics at 300K and 16K for the In_<0.75>Ga_<0.25>As/In_<0.52>Al_<0.48>As HEMTs fabricated on the (411)A- and conventional (100)-oriented InP substrates to clarify the impact of heterointerface flatness on device performance.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) InP-HEMT / (411)A super-flat interfaces / Transconductance (g_m) / Cutoff frequency (f_T) / Delay-time analysis
Paper # R2006-35,ED2006-180,SDM2006-198
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Committee R
Conference Date 2006/11/17(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Effects of heterointerface flatness on device performance of InP-based HEMT : Reduction of interface roughness scattering using (411)A-oriented substrate
Sub Title (in English)
Keyword(1) InP-HEMT
Keyword(2) (411)A super-flat interfaces
Keyword(3) Transconductance (g_m)
Keyword(4) Cutoff frequency (f_T)
Keyword(5) Delay-time analysis
1st Author's Name Issei WATANABE
1st Author's Affiliation National Institute of Info. & Com. Tech.()
2nd Author's Name Keisuke SHINOHARA
2nd Author's Affiliation National Institute of Info. & Com. Tech.:(Present address)Rockwell Scientific Company LLC
3rd Author's Name Takahiro KITADA
3rd Author's Affiliation Graduate School of Engineering Science, Osaka University:(Present address)The University of Tokushima
4th Author's Name Satoshi SHIMOMURA
4th Author's Affiliation Graduate School of Engineering Science, Osaka University:(Present address)Ehime University
5th Author's Name Akira ENDOH
5th Author's Affiliation Fujitsu Laboratories Ltd.
6th Author's Name Yoshimi YAMASHITA
6th Author's Affiliation Fujitsu Laboratories Ltd.
7th Author's Name Takashi MIMURA
7th Author's Affiliation Fujitsu Laboratories Ltd.
8th Author's Name Satoshi HIYAMIZU
8th Author's Affiliation Graduate School of Engineering Science, Osaka University:(Present address)Nara National College of Technology
9th Author's Name Toshiaki MATSUI
9th Author's Affiliation National Institute of Info. & Com. Tech.
Date 2006-11-24
Paper # R2006-35,ED2006-180,SDM2006-198
Volume (vol) vol.106
Number (no) 377
Page pp.pp.-
#Pages 5
Date of Issue