The 80th JSAP Autumn Meeting 2019

Presentation information

Oral presentation

13 Semiconductors » 13.7 Compound and power electron devices and process technology

[21a-E301-1~13] 13.7 Compound and power electron devices and process technology

Sat. Sep 21, 2019 9:00 AM - 12:30 PM E301 (E301)

Kozo Makiyama(Fujitsu Lab.)

10:00 AM - 10:15 AM

[21a-E301-5] Gallium-nitride-based heterojunction bipolar transistors with two-dimensional hole gas fabricated by epitaxial lift-off process

Takeru Kumabe1, Masaya Ogura1, Atsushi Tanaka2,3, Yuto Ando1, Hirotaka Watanabe2, Shigeyoshi Usami1, Manato Deki2, Shugo Nitta2, Yoshio Honda2, Hiroshi Amano2,3,4,5 (1.Dept. of Electronics Nagoya Univ., 2.Nagoya Univ. IMaSS, 3.NIMS, 4.Nagoya Univ. ARC, 5.Nagoya Univ. VBL)

Keywords:Heterojunction Bipolar Transistors, Nitrogen-polar face, Epitaxial Lift-off

GaN-HBTは大電力動作や線形性が期待できる.これまでに,2DHGによるp-GaNのシート抵抗低減と2DHGを用いたコレクタトップ型GaN-HBTについて報告したが,コレクタトップ構造のため電流増幅率は0.003に留まった.本研究ではエピタキシャルリフトオフ法によって-c面上に2DHGを用いたエミッタトップ型GaN-HBTを作製した.電気特性を評価した結果,電流増幅率4を達成した.