Printed circuit board
US4863757A · kind A · utility
26Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 6, 1987 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Feb 6, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/104
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for producing a circuit board having conductive circuit elements patterened on a non-conductive substrate involves printing a film of a U.V. curable ink composed of a suspension of silver-coated magnetite particles in a U.V. curable resin onto the substrate in a circuit pattern, subjecting the pattern to a magnetic field to move the magnetite particles to a position at or near the upper surface of the resin and effecting U.V. radiation cure of the U.V. curable ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.