发明公开
EP0216955A1 Method for preparing an electrolyte solution for electroplating tin or tin-lead alloys
失效
一种生产用于电镀锡或锡 - 铅合金的电解质溶液的方法。
- 专利标题： Method for preparing an electrolyte solution for electroplating tin or tin-lead alloys
- 专利标题（中）： 一种生产用于电镀锡或锡 - 铅合金的电解质溶液的方法。
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申请号： EP85115693.5申请日： 1985-12-10
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公开(公告)号： EP0216955A1公开(公告)日： 1987-04-08
- 发明人: Nobel, Fred I. , Ostrow, Barnet D. , Schram, David Noel
- 申请人： LeaRonal, Inc.
- 申请人地址： 272 Buffalo Avenue Freeport, N.Y. 11520 US
- 专利权人： LeaRonal, Inc.
- 当前专利权人： LeaRonal, Inc.
- 当前专利权人地址： 272 Buffalo Avenue Freeport, N.Y. 11520 US
- 代理机构： Lehn, Werner, Dipl.-Ing.
- 优先权： US778353 19850920
- 主分类号： C25D3/60
- IPC分类号： C25D3/60 ; C25D3/32 ; C25D3/36
摘要：
This invention relates to electrolytes for plating tin, lead and particularly tin-lead alloys comprising a lead and/or tin alkyl or alkylol sulfonate, an alkyl or alkylol sulfonic acid in a sufficient amount to impart a pH below about 3 to the bath, and various additives to improve the brightness of the deposits, the useful current density ranges, and/or the solderability of tin-lead alloy deposits including quaternary nitrogen wetting agents containing a fatty acid radical, alkylene oxides, pyridine compounds, aromatic aldehydes, acetaldehyde and/or a bismuth compound, and methods for the preparation thereof.
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