Presentation 2015-01-16
Modeling of tarps in GaN HEMT by transient response measurement and TCAD simulation
Yutaro YAMAGUCHI, Takuma NANJO, Hidetoshi KOYAMA, Yoshitaka KAMO, Koji YAMANAKA, Toshiyuki OISHI,
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Abstract(in English) In this paper, we reported the result of analysis of traps at the buffer in GaN HEMT by both transient response measurement and TCAD simulation. The two type devices which differ only in the concentration of Fe at GaN buffer layer was prepared, and the transient response from OFF state to ON state was measured at various temperature. Trap energy and capture cross-section at GaN buffer layer were extracted by analysis of time constant of traps. And, by using TCAD simulation and these trap parameters, the relationship with traps at GaN buffer layer and transient response was analyzed. In the result, it was found that transient current was increased because electrons which were captured in traps at GaN buffer at OFF state were emitted at ON state, and transient drain current was increased.
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Keyword(in English) GaN HEMT / trap / transient response / TCAD simulation / Fe / buffer
Paper # ED2014-129,MW2014-193
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Committee MW
Conference Date 2015/1/8(1days)
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Registration To Microwaves (MW)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Modeling of tarps in GaN HEMT by transient response measurement and TCAD simulation
Sub Title (in English)
Keyword(1) GaN HEMT
Keyword(2) trap
Keyword(3) transient response
Keyword(4) TCAD simulation
Keyword(5) Fe
Keyword(6) buffer
1st Author's Name Yutaro YAMAGUCHI
1st Author's Affiliation Mitsubishi electric corp. Information technology R&D center()
2nd Author's Name Takuma NANJO
2nd Author's Affiliation Mitsubishi electric corp. Advanced technology R&D center
3rd Author's Name Hidetoshi KOYAMA
3rd Author's Affiliation Mitsubishi electric corp. High frequency & optical device works
4th Author's Name Yoshitaka KAMO
4th Author's Affiliation Mitsubishi electric corp. High frequency & optical device works
5th Author's Name Koji YAMANAKA
5th Author's Affiliation Mitsubishi electric corp. Information technology R&D center
6th Author's Name Toshiyuki OISHI
6th Author's Affiliation Saga university
Date 2015-01-16
Paper # ED2014-129,MW2014-193
Volume (vol) vol.114
Number (no) 392
Page pp.pp.-
#Pages 6
Date of Issue