Presentation 2015-12-14
Fabrication of FinFET Structure with High Selectivity Etching Using Newly Developed SiNx Etch Gas
Takashi Kojiri, Tomoyuki Suwa, Keiichi Hashimoto, Akinobu Teramoto, Rihito Kuroda, Shigetoshi Sugawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We evaluated the properties of newly developed SiNx etch gas (SSY525). The gas indicated high selectivity as 30 ~ 60 for Poly-Si, and over 100 for SiO2, respectively. We introduced SSY525 to fabricate the FinFET which is the typical structure of Three Dimensional Metal Oxide Semiconductor Field Effect Transistors (3D-MOSFETs) and requires the high selectivity etching for the fabrication process. The 3D structure of FinFET fabricated by the etching process with SSY525 is superior to that with the CH3F gas which is conventionally used for the SiNx etching.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) FinFET / Spacer Etch / Etching Gas
Paper # EID2015-9,SDM2015-92
Date of Issue 2015-12-07 (EID, SDM)

Conference Information
Committee EID / SDM
Conference Date 2015/12/14(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Ryukoku University, Avanti Kyoto Hall
Topics (in Japanese) (See Japanese page)
Topics (in English) Si and Si-related Materials and Devices, and Display Technology
Chair Tomokazu Shiga(Univ. of Electro-Comm.) / Yuzou Oono(Univ. of Tsukuba)
Vice Chair Mutsumi Kimura(Ryukoku Univ.) / Yuko Kominami(Shizuoka Univ.) / Tatsuya Kunikiyo(Renesas)
Secretary Mutsumi Kimura(NTT) / Yuko Kominami(Tokyo Inst. of Tech.) / Tatsuya Kunikiyo(Tohoku Univ.)
Assistant Rumiko Yamaguchi(Akita Univ.) / Hiroyuki Nitta(Japan Display) / Mitsuru Nakata(NHK) / Takashi Kojiri(ZEON) / Ryosuke Nonaka(Toshiba) / Takeshi Okuno(Samsung) / Tadashi Yamaguchi(Renesas)

Paper Information
Registration To Technical Committee on Electronic Information Displays / Technical Committee on Silicon Device and Materials
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication of FinFET Structure with High Selectivity Etching Using Newly Developed SiNx Etch Gas
Sub Title (in English)
Keyword(1) FinFET
Keyword(2) Spacer Etch
Keyword(3) Etching Gas
1st Author's Name Takashi Kojiri
1st Author's Affiliation Tohoku University/ZEON Corporation(Tohoku Univ./ZEON)
2nd Author's Name Tomoyuki Suwa
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Keiichi Hashimoto
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
4th Author's Name Akinobu Teramoto
4th Author's Affiliation Tohoku University(Tohoku Univ.)
5th Author's Name Rihito Kuroda
5th Author's Affiliation Tohoku University(Tohoku Univ.)
6th Author's Name Shigetoshi Sugawa
6th Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2015-12-14
Paper # EID2015-9,SDM2015-92
Volume (vol) vol.115
Number (no) EID-362,SDM-363
Page pp.pp.1-4(EID), pp.1-4(SDM),
#Pages 4
Date of Issue 2015-12-07 (EID, SDM)