Non-precious metal colloidal dispersions for electroless metal deposition
US4136216A · kind A · utility
19Cited by
6References
45Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1976 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Oct 12, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Metallic surfaces are imparted to non-conductive or dielectric substrates by an electroless coating process comprising coating the surface of the substrate with a hydrous oxide colloid of non-precious metal ions preferably selected from the group consisting of cobalt, nickel and copper ions, reducing the selected metal ions to a reduced or zero valence state with a suitable reducing agent, and exposing the substrate to an electroless plating bath.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.