EP 0343816 A1 19891129 - Electroless deposition.
Title (en)
Electroless deposition.
Title (de)
Verfahren zur stromlosen Metallabscheidung.
Title (fr)
Procédé de dépÔt chimique.
Publication
Application
Priority
GB 8812329 A 19880525
Abstract (en)
An aqueous liquor for use as an electroless gold deposition bath, which comprises a source of gold (eg. an alkali metal gold cyanide) and a reducing agent (eg. an alkali metal borohydride), is stabilised by the incorporation of a mixture of an alkali metal or ammonium ferrocyanide and an alkali metal or ammonium ferricyanide or the incorporation of 1-H-tetrazole or another redox mediator. The liquor will in general also contain an alkali metal cyanide and may contain a chelating agent (eg. EDTA) and an accelerator (eg. thallium sulfate).
IPC 1-7
IPC 8 full level
C23C 18/44 (2006.01)
CPC (source: EP KR)
C23C 18/44 (2013.01 - EP KR)
Citation (search report)
- [A] US 3485643 A 19691223 - ZEBLISKY RUDOLPH J, et al
- [A] METAL FINISHING ABSTRACTS, vol. 16, no. 1, January/February 1974, page 24, right-hand column, abstract A; & SU-A-397 562 (INST. INORGAN. CHEM., ACAD. SCI.) 24-05-1971
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0343816 A1 19891129; GB 8812329 D0 19880629; JP H0219473 A 19900123; KR 890017391 A 19891216
DOCDB simple family (application)
EP 89304821 A 19890512; GB 8812329 A 19880525; JP 12682489 A 19890522; KR 890006953 A 19890524