Presentation 2005/1/24
Effect of Additives on Bottom-up Electroless Copper Plating
S. Shingubara, R. Obata, A. Kato, Z. Wang, O. Yaegashi, H. Sakaue, T. Takahagi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We found the bottom-up electroless plating of Cu by addition of SPS recently. In this study, effect of various additives such as alkanethiol and thiorea were investigated besides SPS. All these additives act as strong inhibitor for copper electroless plating. There was a clear bottom-up-fill effect for alkanethiol that had a hydrophilic unit. On the other hand, there was an anti-bottom-up effect for thiorea. These results suggested that there is a relationship between a molecular weight of inhibitor and the bottom-up-fill tendency. The bottom-up-fill occurs only when molecular weight is large enough, and it cannot occurs when molecular weight is much smaller than Cu-EDTA complex.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) copper interconnection / electroless plating / via hole / inhibitor / CMP
Paper # SDM2004-243
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Committee SDM
Conference Date 2005/1/24(1days)
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Paper Information
Registration To Silicon Device and Materials (SDM)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effect of Additives on Bottom-up Electroless Copper Plating
Sub Title (in English)
Keyword(1) copper interconnection
Keyword(2) electroless plating
Keyword(3) via hole
Keyword(4) inhibitor
Keyword(5) CMP
1st Author's Name S. Shingubara
1st Author's Affiliation Graduate School of ADSM, Hiroshima University()
2nd Author's Name R. Obata
2nd Author's Affiliation Graduate School of ADSM, Hiroshima University
3rd Author's Name A. Kato
3rd Author's Affiliation Graduate School of ADSM, Hiroshima University
4th Author's Name Z. Wang
4th Author's Affiliation Graduate School of ADSM, Hiroshima University
5th Author's Name O. Yaegashi
5th Author's Affiliation Graduate School of ADSM, Hiroshima University
6th Author's Name H. Sakaue
6th Author's Affiliation Graduate School of ADSM, Hiroshima University
7th Author's Name T. Takahagi
7th Author's Affiliation Graduate School of ADSM, Hiroshima University
Date 2005/1/24
Paper # SDM2004-243
Volume (vol) vol.104
Number (no) 645
Page pp.pp.-
#Pages 6
Date of Issue