Presentation 2022-11-24
Study on p-GaInN base layer and quaternary AlGaInN emitter layer for GaN HBTs
Yusuke Iida, Akira Mase, Masaya Takimoto, Yutaka Nikai, Takashi Egawa, Makoto Miyoshi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) GaN-based HBTs are very promising as next-generation high-frequency power devices. However, when considering the realization of GaN-HBTs, there are several issues such as high offset voltages caused by the high resistance of p-type base layers. In this study, we investigated a p-GaInN base layer, which is expected to have lower resistivity than the p-GaN base layer, and a quaternary AlGaInN emitter layer which allows for the design of energy band gaps with less strains realizing low offset voltages in GaN HBTs. The electrical properties and surface morphologies of p-GaInN grown at 800°C to 840°C by MOCVD were investigated, and p-GaInN with an InN mole fraction of 4% or less was considered promising as a base layer. Nearly lattice-matched quaternary AlGaInN emitter layers were designed and grown by varying InN mole fractions at a constant AlN/GaN mole ratio, so as to satisfy an energy band offset and a surface flatness at the same time.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) HBT / p-GaInN / AlGaInN / MOCVD
Paper # ED2022-36,CPM2022-61,LQE2022-69
Date of Issue 2022-11-17 (ED, CPM, LQE)

Conference Information
Committee CPM / ED / LQE
Conference Date 2022/11/24(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Winc Aichi (Aichi Industry & Labor Center)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yuichi Nakamura(Toyohashi Univ. of Tech.) / Hiroki Fujishiro(Tokyo Univ. of Science) / Junichi Takahara(Osaka Univ.)
Vice Chair Hideki Nakazawa(Hirosaki Univ.) / Seiya Sakai(Hokkaido Univ.) / Kosuke Nishimura(KDDI Research)
Secretary Hideki Nakazawa(Ehime Univ.) / Seiya Sakai(Kitami Inst. of Tech) / Kosuke Nishimura(Saga Univ.)
Assistant Yasuo Kimura(Tokyo Univ. of Tech.) / Fumihiko Hirose(Yamagata Univ.) / Noriko Bamba(Shinshu Univ.) / Masatoshi Koyama(Osaka Inst. of Tech.) / Yoshitugu Yamamoto(Mitsubishi Electric) / Yoshiaki Nishijima(Yokohama National Univ.) / Nobuhiko Nishiyama(Tokyo Inst. of Tech.)

Paper Information
Registration To Technical Committee on Component Parts and Materials / Technical Committee on Electron Devices / Technical Committee on Lasers and Quantum Electronics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Study on p-GaInN base layer and quaternary AlGaInN emitter layer for GaN HBTs
Sub Title (in English)
Keyword(1) HBT
Keyword(2) p-GaInN
Keyword(3) AlGaInN
Keyword(4) MOCVD
1st Author's Name Yusuke Iida
1st Author's Affiliation Nagoya Institute of Technology(NITech)
2nd Author's Name Akira Mase
2nd Author's Affiliation Nagoya Institute of Technology(NITech)
3rd Author's Name Masaya Takimoto
3rd Author's Affiliation Nagoya Institute of Technology(NITech)
4th Author's Name Yutaka Nikai
4th Author's Affiliation Nagoya Institute of Technology(NITech)
5th Author's Name Takashi Egawa
5th Author's Affiliation Nagoya Institute of Technology(NITech)
6th Author's Name Makoto Miyoshi
6th Author's Affiliation Nagoya Institute of Technology(NITech)
Date 2022-11-24
Paper # ED2022-36,CPM2022-61,LQE2022-69
Volume (vol) vol.122
Number (no) ED-271,CPM-272,LQE-273
Page pp.pp.57-60(ED), pp.57-60(CPM), pp.57-60(LQE),
#Pages 4
Date of Issue 2022-11-17 (ED, CPM, LQE)