Gold and gold alloy deposition
US4062736A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1975 |
| Grant date | Dec 13, 1977 |
| Priority date | — |
| Expiry date | Nov 13, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D3/48
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a bath and process for obtaining deposits of gold or gold alloys of improved uniformity of deposit thickness on an irregularly shaped conductive surface. The aqueous plating bath contains gold as the aurocyanide complex, a mild reducing agent, a complexing agent, arsenic as a water-soluble arsenic compound, and a substituted polyamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.