Presentation 2015-04-17
Reaction mechanism of room temperature HfO2 atomic layer deposition using remote plasma excited water and oxygen
Kensaku Kanomata, Hisashi Ohba, P. Pungboon Pansila, Bashir Ahmmad Arima, Shigeru Kubota, Kazuhiro Hirahara, Fumihiko Hirose,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Room-temperature atomic layer deposition (ALD) of hafnium dioxide is developed using tetrakis(ethylmethylamino)hafnium (TEMAH) and plasma-excited water and oxygen vapor generated from a remote plasma source. The plasma-excited water and oxygen vapor is effective in oxidizing the TEMAH-adsorbed HfO2 surface while leaving OH sites on the growing surface at room temperature for further TEMAH adsorption. The growth rate is measured to be 0.26 nm/cycle at room temperature. The TEMAH adsorption and its oxidation on HfO2 were investigated by multiple-internal-refraction infrared absorption spectroscopy (MIR-IRAS). In thin work, we constructed a reaction model of the RT HfO2 ALD by MIR-IRAS and adsorption site fitting.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) ALD / TEMAH / Plasma-excited H2O and O2 / MIR-IRAS / Plasma optical spectroscopy
Paper # ED2015-11
Date of Issue 2015-04-09 (ED)

Conference Information
Committee ED
Conference Date 2015/4/16(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Laboratory for Nanoelectronics and Spintronics
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Naoki Hara(Fujitsu Labs.)
Vice Chair Koichi Maezawa(Univ. of Toyama)
Secretary Koichi Maezawa(Hokkaido Univ.)
Assistant Toshikazu Suzuki(JAIST) / Manabu Arai(New JRC)

Paper Information
Registration To Technical Committee on Electron Device
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Reaction mechanism of room temperature HfO2 atomic layer deposition using remote plasma excited water and oxygen
Sub Title (in English)
Keyword(1) ALD
Keyword(2) TEMAH
Keyword(3) Plasma-excited H2O and O2
Keyword(4) MIR-IRAS
Keyword(5) Plasma optical spectroscopy
1st Author's Name Kensaku Kanomata
1st Author's Affiliation Yamagata University(Yamagata Univ.)
2nd Author's Name Hisashi Ohba
2nd Author's Affiliation Yamagata University(Yamagata Univ.)
3rd Author's Name P. Pungboon Pansila
3rd Author's Affiliation Yamagata University(Yamagata Univ.)
4th Author's Name Bashir Ahmmad Arima
4th Author's Affiliation Yamagata University(Yamagata Univ.)
5th Author's Name Shigeru Kubota
5th Author's Affiliation Yamagata University(Yamagata Univ.)
6th Author's Name Kazuhiro Hirahara
6th Author's Affiliation Yamagata University(Yamagata Univ.)
7th Author's Name Fumihiko Hirose
7th Author's Affiliation Yamagata University(Yamagata Univ.)
Date 2015-04-17
Paper # ED2015-11
Volume (vol) vol.115
Number (no) ED-5
Page pp.pp.53-58(ED),
#Pages 6
Date of Issue 2015-04-09 (ED)