Presentation 2023-11-30
Steam Oxidation Technique for Defect Reduction on ALD-Al2O3 Insulated-gate structures
Shiro Ozaki, Yusuke Kumazaki, Naoya Okamoto, Yasuhiro Nakasya, Toshihiro Tagi, Naoki Hara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this study, we investigated the effect of oxidant sources on carbon-related impurities in atomic layer deposited (ALD)-Al2O3 by focusing on plasma-induced decomposition of ?CH3 groups which attributed in ALD precursor. We found that the C?O bonds were detected in the ALD-Al2O3 using O2 plasma instead of the C?H bonds which attributed to ?CH3 groups of trimethylaluminum. It is considered that the decomposition of ?CH3 groups was enhanced by O2 plasma, and C?O residue was generated. We concluded that the decomposition of ?CH3 groups by oxidant sources must be suppressed to reduce the carbon-related impurities in ALD-Al2O3.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) ALD-Al2O3 / oxidant Sources / carbon-related impurities / O2 plasma / H2O vapor
Paper # ED2023-17,CPM2023-59,LQE2023-57
Date of Issue 2023-11-23 (ED, CPM, LQE)

Conference Information
Committee LQE / ED / CPM
Conference Date 2023/11/30(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Kosuke Nishimura(KDDI Research) / Seiya Sakai(Hokkaido Univ.) / Hideki Nakazawa(Hirosaki Univ.)
Vice Chair Atsushi Yamaguchi(Kanazawa Inst. of Tech.) / Manabu Arai(Nagoya Univ.) / Tomoaki Terasako(Ehime Univ.)
Secretary Atsushi Yamaguchi(Fujitsu) / Manabu Arai(Yokohama National Univ.) / Tomoaki Terasako(Saga Univ.)
Assistant Keita Mochiduki(Yokohama National Univ.) / Masatoshi Koyama(Osaka Inst. of Tech.) / Tomohiro Yoshida(SUMITOMO ELECTRIC DEVICE INNOVATIONS) / Yasuo Kimura(Tokyo Univ. of Tech.) / Fumihiko Hirose(Yamagata Univ.) / Yuichi Nakamura(Toyohashi Univ. of Tech.)

Paper Information
Registration To Technical Committee on Lasers and Quantum Electronics / Technical Committee on Electron Devices / Technical Committee on Component Parts and Materials
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Steam Oxidation Technique for Defect Reduction on ALD-Al2O3 Insulated-gate structures
Sub Title (in English)
Keyword(1) ALD-Al2O3
Keyword(2) oxidant Sources
Keyword(3) carbon-related impurities
Keyword(4) O2 plasma
Keyword(5) H2O vapor
1st Author's Name Shiro Ozaki
1st Author's Affiliation Fujitsu Ltd.(Fujitsu)
2nd Author's Name Yusuke Kumazaki
2nd Author's Affiliation Fujitsu Ltd.(Fujitsu)
3rd Author's Name Naoya Okamoto
3rd Author's Affiliation Fujitsu Ltd.(Fujitsu)
4th Author's Name Yasuhiro Nakasya
4th Author's Affiliation Fujitsu Ltd.(Fujitsu)
5th Author's Name Toshihiro Tagi
5th Author's Affiliation Fujitsu Ltd.(Fujitsu)
6th Author's Name Naoki Hara
6th Author's Affiliation Fujitsu Ltd.(Fujitsu)
Date 2023-11-30
Paper # ED2023-17,CPM2023-59,LQE2023-57
Volume (vol) vol.123
Number (no) ED-288,CPM-289,LQE-290
Page pp.pp.15-20(ED), pp.15-20(CPM), pp.15-20(LQE),
#Pages 6
Date of Issue 2023-11-23 (ED, CPM, LQE)