Thin-film forming apparatus
US4841857A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1987 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Oct 29, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K3/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an apparatus for forming a thin film on a material by printing. The apparatus is characterized in that it has a cylindrical intaglio roller. The ink deposited on the surface of the intaglio roller is first transferred onto the surface of a printing roller, and then is printed on the surface of the material to be printed which is disposed on a surface plate. Alternatively, the ink is directly printed on the surface of the material to be printed without employing the printing roller. Since the intaglio roller has a cylindrical body, the surface of the roller can be precisely and easily machined and finished. Accordingly, despite a plurality of ink cells directly formed in a given pattern on the surface of the intaglio rollers, the contact pressure of the ink cell surface of the intaglio roller against the surface of the printing roller or the surface of the material to be printed is uniform over the entire contact area so that the thickness of the film printed on the surface of the material to be printed can be made precisely uniform over the entirety thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.