Presentation 1997/7/24
Cleaning Method using H_2O_2 Buffing after Selective Silicon CMP
G.J. Bae, K.H. Lee, K.W. Lee, G. Cha, S.I. Lee, M.Y. Lee,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Patterned and Bonded SOI(PBSOI) structure poses serious challenges in post CMP cleaning process where the mixed patterns of silicon and oxide should be cleaned simultaneously. Because conventional repetitive RCA cleaning which damages the oxide pattern and degrades the surface roughness of silicon pattern is not suitable for PBSOI fabrication process, we introduced in-situ buffing with hydrogen peroxide to post CMP cleaning process for PBSOI wafers. Chemical oxide layer on the surface of silicon pattern is formed by in-situ buffing with hydrogen peroxide and it improves the ability to remove the particles on wafer. Thus, by using hydrogen peroxide, most of the particles induced by selective silicon CMP can be reduced to the acceptable levels(≤0.1ea/cm^2).
Keyword(in Japanese) (See Japanese page)
Keyword(in English) PBS0I / post CMP cleaning / hydrogen peroxide / in-situ buffing / selective silicon CMP
Paper # SDM97-50
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Conference Information
Committee SDM
Conference Date 1997/7/24(1days)
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Paper Information
Registration To Silicon Device and Materials (SDM)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Cleaning Method using H_2O_2 Buffing after Selective Silicon CMP
Sub Title (in English)
Keyword(1) PBS0I
Keyword(2) post CMP cleaning
Keyword(3) hydrogen peroxide
Keyword(4) in-situ buffing
Keyword(5) selective silicon CMP
1st Author's Name G.J. Bae
1st Author's Affiliation Semiconductor R&D Center Samsung Electronics Co., Ltd()
2nd Author's Name K.H. Lee
2nd Author's Affiliation Semiconductor R&D Center Samsung Electronics Co., Ltd
3rd Author's Name K.W. Lee
3rd Author's Affiliation Semiconductor R&D Center Samsung Electronics Co., Ltd
4th Author's Name G. Cha
4th Author's Affiliation Semiconductor R&D Center Samsung Electronics Co., Ltd
5th Author's Name S.I. Lee
5th Author's Affiliation Semiconductor R&D Center Samsung Electronics Co., Ltd
6th Author's Name M.Y. Lee
6th Author's Affiliation Semiconductor R&D Center Samsung Electronics Co., Ltd
Date 1997/7/24
Paper # SDM97-50
Volume (vol) vol.97
Number (no) 195
Page pp.pp.-
#Pages 6
Date of Issue