Process for the non-galvanic tin plating of copper or copper alloys

The invention describes a process for non-galvanic tin plating of copper and copper alloys by precipitation of tin from methanesulphonic acid and tin-containing electrolytes, containing a complexing agent. In describing a process by which a durable tin layer which can be soldered is created, which,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JURGEN HUPE, JOACHIM HEYER, INGO KALKER, JANE BELL, MARLIES KLEINFELD
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention describes a process for non-galvanic tin plating of copper and copper alloys by precipitation of tin from methanesulphonic acid and tin-containing electrolytes, containing a complexing agent. In describing a process by which a durable tin layer which can be soldered is created, which, at the same time, prevents liberation of the base material, this invention discloses that the electrolytes have at least one foreign metal added to form a diffusion barrier in the tin layer.