Method of manufacturing monolithic ink-jet printhead
US6806108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/1437
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a monolithic ink-jet printhead includes preparing a silicon substrate, forming an ink passage comprising a manifold supplying ink, an ink chamber filled with ink supplied from the manifold, an ink channel connecting the ink chamber to the manifold, and a nozzle through which the ink is ejected from the ink chamber, on the silicon substrate, and reprocessing a wall of the ink passage by passing XeF2 gas through the ink passage and dry etching the wall of the ink passage. In the reprocessing of the wall of the ink passage using XeF2 gas, the wall of the ink passage is smoothed, and a size of the ink passage can be more precisely adjusted to a design dimension, thereby improving a printing performance of the ink-jet printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.