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US 2012/0067733 A1Published application
Method of electroplating silver strike over nickel
AssigneeRohm and Haas Electronic Materials LLC
InventorsWan ZHANG-BEGLINGER, Edit SZÖCS, Margit CLAUSS
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Abstract
A silver electroplating solution is used to electroplate a mirror bright silver layer on a nickel or nickel alloy substrate. The silver electroplating solution is cyanide-free and environmentally friendly.
Claims8
A method comprising:
- a) providing a solution comprising one or more sources of silver ions, one or more imides or imide derivatives and one or more alkali metal nitrates, the solution is cyanide-free;
- b) contacting a substrate comprising nickel with the solution;
- and
- c) electroplating a silver strike layer onto the nickel or nickel alloy.
1 more element
Dependencies are inferred from the claim text.