Photo-curing process for metallic inks
US9730333B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 14, 2009 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Mar 8, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1131
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solution of metal ink is mixed and then printed or dispensed onto the substrate using the dispenser. The film then is dried to eliminate water or solvents. In some cases, a thermal curing step can be introduced subsequent to dispensing the film and prior to the photo-curing step. The substrate and deposited film can be cured using an oven or by placing the substrate on the surface of a heater, such as a hot plate. Following the drying and/or thermal curing step, a laser beam or focused light from the light source is directed onto the surface of the film in a process known as direct writing. The light serves to photo-cure the film such that it has low resistivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.