Method of manufacturing liquid ejection head
US9427953B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Nov 28, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1646
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a liquid ejection head includes forming, on the substrate, a metal layer formed of a first metal, forming a liquid flow path pattern formed of a second metal that is a metal of a different kind from that of the first metal and that is dissolvable in a solution that does not dissolve the first metal, the liquid flow path pattern being formed on at least a part of a surface of the metal layer, covering the metal layer and the pattern with an inorganic material layer to be formed as the nozzle layer, forming the ejection orifices in the inorganic material layer, and removing the pattern by the solution. A standard electrode potential E1 of the first metal and a standard electrode potential E2 of the second metal have a relationship of E1>E2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.