Pyrophosphate-based bath for plating on tin alloy layers

Details Pyrophosphate-based bath for plating on tin alloy layers Pyrophosphate-based bath for plating on tin alloy layers

C - Chemistry, Metallurgy

25

D

C25D 3/60 (2006.01)

Patent

CA 2716115

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, characterised in that it further contains (ii) N-methyl pyrrolidone is described.

Linvention concerne un bain délectrolyte aqueux sans cyanure pour le plaquage de couches en alliage détain sur des surfaces de substrats. Le bain selon linvention comprend (i) une source dions étain et une source dun autre élément dalliage. Le bain selon linvention est caractérisé en ce quil contient également (ii) de la N-méthylpyrrolidone.

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