发明授权
US4617097A Process and electrolyte for electroplating tin, lead or tin-lead alloys
失效
用于电镀锡，铅或锡铅合金的工艺和电解液
- 专利标题： Process and electrolyte for electroplating tin, lead or tin-lead alloys
- 专利标题（中）： 用于电镀锡，铅或锡铅合金的工艺和电解液
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申请号： US778353申请日： 1985-09-20
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公开(公告)号： US4617097A公开(公告)日： 1986-10-14
- 发明人: Fred I. Nobel , Barnet D. Ostrow , David N. Schram
- 申请人： Fred I. Nobel , Barnet D. Ostrow , David N. Schram
- 申请人地址： NY Freeport
- 专利权人： LeaRonal, Inc.
- 当前专利权人： LeaRonal, Inc.
- 当前专利权人地址： NY Freeport
- 主分类号： C25D3/32
- IPC分类号： C25D3/32 ; C25D3/36 ; C25D3/56 ; C25D3/60 ; H05K3/34
摘要：
A process and bath for electroplating tin, lead and tin-lead alloys. Improved brightness, solderability and broader current density ranges are achieved by the use in the baths of a soluble alkylene oxide condensate to provide a cloud point of the bath above about 90.degree. F., a soluble bismuth compound, an aromatic aldehyde and acetaldehyde. Tin and lead are supplied to the bath as salts of alkyl or alkylol sulfonic acids with sufficient free alkyl or alkylol sulfonic acid to provide a bath pH of less than 3.
公开/授权文献
- US5756642A Phenolic polymers made by aralkylation reactions 公开/授权日：1998-05-26
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