Process for producing product having patterned metal layer
US4666735A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1985 |
| Grant date | May 19, 1987 |
| Priority date | — |
| Expiry date | Oct 30, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/09909
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multilayered composite product useful as an electrical circuit is produced by coating a base with a photoimagable resin free of catalyst or catalyst activator for electroless metal deposition. The resin is patterned by exposure to a desired light, through a mask followed by development. The patterned cured resin is selectively chemically modified while avoiding chemical modification of the base to render the cured resin receptive to a metal catalyst. The metal catalyst which promotes subsequent electroless metal deposition is selectively absorbed on the patterned cured resin and is converted to a catalytically active form. A conductive metal then is deposited selectively on the catalyst-containing patterned cured resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.