发明名称 |
COPPER ELECTROPLATING BATH |
摘要 |
<p>A copper electroplating bath useful in filling non-through holes formed on a substrate which contains a water-soluble copper salt, sulfuric acid, and chloride ions and further contains a brightener, a carrier, and a leveller as additives, wherein the leveller contains at least one water-soluble polymer containing quaternary nitrogen, tertiary nitrogen, or both which are cationizable in a solution. In the copper electroplating bath, the filling power for non-through holes formed on a substrate can be easily controlled so as to fit to the size of the holes only by changing the quaternary nitrogen to tertiary nitrogen ratio of the water-soluble polymer to be used as the leveller, which enables copper electroplating of non-through holes of various sizes with a good fit to the sizes.</p> |
申请公布号 |
WO2008142770(A1) |
申请公布日期 |
2008.11.27 |
申请号 |
WO2007JP60364 |
申请日期 |
2007.05.21 |
申请人 |
C. UYEMURA & CO., LTD.;ISONO, TOSHIHISA;TACHIBANA, SHINJI;KAWASE, TOMOHIRO;OMURA, NAOYUKI |
发明人 |
ISONO, TOSHIHISA;TACHIBANA, SHINJI;KAWASE, TOMOHIRO;OMURA, NAOYUKI |
分类号 |
C25D3/38 |
主分类号 |
C25D3/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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