Method of making an inkjet printhead
US7497961B2 · kind B2 · utility
9Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Dec 6, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1635
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of making an inkjet printhead comprises forming at least one ink ejection element 18 on a surface 14 of a substrate 10 and forming a slot 12 in the substrate to provide fluid communication between an ink supply and the ink ejection element. A protective coating 26 is applied to the surface of the substrate prior to forming the slot. The protective coating comprises a non-polymeric material which is capable of forming a covalent bond with the substrate and is removed from the substrate without damaging the ink ejection element following slot formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.