Invention Grant
- Patent Title: Pyrophosphate-based bath for plating of tin alloy layers
- Patent Title (中): 用于电镀锡合金层的焦磷酸盐浴
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Application No.: US12864180Application Date: 2009-02-05
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Publication No.: US08647491B2Publication Date: 2014-02-11
- Inventor: Philip Hartmann , Lars Kohlmann , Heiko Brunner , Klaus-Dieter Schulz
- Applicant: Philip Hartmann , Lars Kohlmann , Heiko Brunner , Klaus-Dieter Schulz
- Applicant Address: DE Berlin
- Assignee: Atotech Deutschland GmbH
- Current Assignee: Atotech Deutschland GmbH
- Current Assignee Address: DE Berlin
- Agency: Edwards Wildman Palmer LLP
- Agent Peter F. Corless; Christine C. O'Day
- Priority: EP08003786 20080229
- International Application: PCT/EP2009/000802 WO 20090205
- International Announcement: WO2009/109271 WO 20090911
- Main IPC: C25D3/60
- IPC: C25D3/60 ; C25D3/58
Abstract:
An aqueous cyanide-free electrolyte bath for plating of tin alloy layers on substrate surfaces comprising (i) a tin ion source and a source for another alloy element, characterized in that it further contains (ii) N-methyl pyrrolidone is described.
Public/Granted literature
- US20100300890A1 PYROPHOSPHATE-BASED BATH FOR PLATING OF TIN ALLOY LAYERS Public/Granted day:2010-12-02
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