Invention Grant
- Patent Title: Composition for tin or tin alloy electroplating comprising leveling agent
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Application No.: US16618222Application Date: 2018-05-28
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Publication No.: US11535946B2Publication Date: 2022-12-27
- Inventor: Alexander Fluegel , Jean-Pierre Berkan Lindner , Marco Arnold
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Armstrong Teasdale LLP
- Priority: EP17173987 20170601
- International Application: PCT/EP2018/063889 WO 20180528
- International Announcement: WO2018/219848 WO 20181206
- Main IPC: C25D3/60
- IPC: C25D3/60 ; C25D3/32 ; C25D5/02
Abstract:
The present invention relates to the use of an aqueous composition comprising tin ions optionally further alloy metal ions selected from silver, copper, indium, and bismuth ions and at least one additive comprising a linear or branched polyimidazolium compound comprising the structural unit of formula (L1) for depositing tin or tin alloy containing layers and a process for depositing tin alloy layer onto a substrate.
Information query
