EP 0636713 A3 19950726 - Alcaline cyanide baths for electroplating copper-tin alloys coatings.
Title (en)
Alcaline cyanide baths for electroplating copper-tin alloys coatings.
Title (de)
Cyanidisch-alkalische Bäder zur galvanischen Abscheidung von Kupfer-Zinn-Legierunsüberzügen.
Title (fr)
Bains alcalins cyanurés pour le dépÔt électrolytique de revêtements en alliage cuivre étain.
Publication
Application
Priority
DE 4324995 A 19930726
Abstract (en)
[origin: EP0636713A2] To produce bright to glossy, planarised copper-tin alloy coatings, electroplating baths are used which contain from 1 to 60 g/l of copper as copper cyanide, from 1 to 50 g/l of tin as alkali metal stannate, from 0 to 10 g/l of zinc as zinc cyanide, from 1 to 100 g/l of free alkali metal cyanide, from 1 to 50 g/l of free alkali metal hydroxide and, as a complexing agent, from 1 to 200 g/l of oligosaccharides and/or polysaccharides as well as, additionally, from 0.01 to 4 g/l of alkene sulphonate, alkine sulphonate, pyridine compounds or sulphur-containing propane sulphonates as a brightener.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Citation (search report)
- [A] US 2916423 A 19591208 - FRANK PASSAL
- [A] CHEMICAL ABSTRACTS, vol. 100, no. 12, 19 March 1984, Columbus, Ohio, US; abstract no. 93503n, "bath for bright electroplating of copper-nickel alloy" page 498; & JP S58133391 A 19830809 - OSAKA CITY, et al
Designated contracting state (EPC)
AT CH DE FR GB IT LI
DOCDB simple family (publication)
EP 0636713 A2 19950201; EP 0636713 A3 19950726; BR 9402931 A 19950411; DE 4324995 A1 19950202; DE 4324995 C2 19951221; JP 3305504 B2 20020722; JP H0754187 A 19950228; US 5534129 A 19960709
DOCDB simple family (application)
EP 94109336 A 19940617; BR 9402931 A 19940725; DE 4324995 A 19930726; JP 17424894 A 19940726; US 27763194 A 19940720