Coating aluminum with a strippable copper deposit
US3969199A · kind A · utility
66Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1975 |
| Grant date | Jul 13, 1976 |
| Priority date | — |
| Expiry date | Jul 7, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/0726
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improvement in providing a mechanically strippable copper plate on an aluminum carrier is achieved by pretreating the aluminum carrier with an alkaline, aqueous, alkali metal zincate composition containing a small amount of one or more water soluble iron, cobalt or nickel salts, and removing substantially all of the deposited zincate coating with acid prior to copper plating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.