发明名称 |
ELECTROLESS PALLADIUM PLATING BATH AND ELECTROLESS PALLADIUM PLATING METHOD |
摘要 |
Disclosed is an electroless palladium plating bath containing a palladium compound, at least one complexing agent selected from ammonia and amine compounds, at least one reducing agent selected from phosphinic acid and phosphinates, and at least one unsaturated carboxylic acid compound selected from unsaturated carboxylic acids, unsaturated carboxylic acid anhydrides, unsaturated carboxylates and unsaturated carboxylic acid derivatives. Such an electroless palladium plating bath has high bath stability, and decomposition of the bath hardly occurs. Consequently, the electroless palladium plating bath of the present invention has a longer bath life than conventional electroless palladium plating baths. In addition, this electroless palladium plating bath enables to obtain excellent solder bonding characteristics and wire bonding characteristics since it does not affect plating film characteristics even when it is used for a long time. |
申请公布号 |
WO2007037176(A1) |
申请公布日期 |
2007.04.05 |
申请号 |
WO2006JP318827 |
申请日期 |
2006.09.22 |
申请人 |
C. UYEMURA & CO., LTD.;MURASUMI, AKIHIKO;KUROSAKA, SEIGO;INAGAWA, HIROSHI;ODA, YUKINORI |
发明人 |
MURASUMI, AKIHIKO;KUROSAKA, SEIGO;INAGAWA, HIROSHI;ODA, YUKINORI |
分类号 |
C23C18/44 |
主分类号 |
C23C18/44 |
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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