Presentation 2006-10-05
Estimation of AlGaN/GaN HFET surface barrier height with Cat-CVD SiN passivation by XPS and C-V measurements
Norio Onojima, Masataka Higashiwaki, Jun Suda, Tsunenobu Kimoto, Takashi Mimura, Toshiaki Matsui,
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Abstract(in English) AlGaN surface barrier heights in AlGaN/GaN heterostructure field-effect transistors (HFETs) with and without SiN passivation were estimated in detail by x-ray photoelectron spectroscopy (XPS) and capacitance-voltage (C-V) measurements. SiN passivation was performed by catalytic chemical vapor deposition (Cat-CVD), which has been already found to increase two-dimensional electron gas (2DEG) density. In this contribution, we demonstrate that a reduction of AlGaN surface barrier height is actually induced by Cat-CVD SiN passivation, which is most likely to be a significant factor of increase in the 2DEG density of AlGaN/GaN HFETs.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) AlGaN/GaN heterostructure field-effect transistor (HFET) / SiN passivation / catalytic chemical vapor deposition (Cat-CVD) / surface barrier height / x-ray photoelectron spectroscopy (XPS) / capacitance-voltage (C-V)
Paper # ED2006-158,CPM2006-95,LQE2006-62
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Conference Information
Committee CPM
Conference Date 2006/9/28(1days)
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Registration To Component Parts and Materials (CPM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Estimation of AlGaN/GaN HFET surface barrier height with Cat-CVD SiN passivation by XPS and C-V measurements
Sub Title (in English)
Keyword(1) AlGaN/GaN heterostructure field-effect transistor (HFET)
Keyword(2) SiN passivation
Keyword(3) catalytic chemical vapor deposition (Cat-CVD)
Keyword(4) surface barrier height
Keyword(5) x-ray photoelectron spectroscopy (XPS)
Keyword(6) capacitance-voltage (C-V)
1st Author's Name Norio Onojima
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)()
2nd Author's Name Masataka Higashiwaki
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Jun Suda
3rd Author's Affiliation Kyoto University Kyotodaigaku
4th Author's Name Tsunenobu Kimoto
4th Author's Affiliation Kyoto University Kyotodaigaku
5th Author's Name Takashi Mimura
5th Author's Affiliation National Institute of Information and Communications Technology (NICT):Fujitsu Laboratories Ltd.
6th Author's Name Toshiaki Matsui
6th Author's Affiliation National Institute of Information and Communications Technology (NICT)
Date 2006-10-05
Paper # ED2006-158,CPM2006-95,LQE2006-62
Volume (vol) vol.106
Number (no) 270
Page pp.pp.-
#Pages 4
Date of Issue