Inkjet printhead and method of manufacturing the same
US7758168B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Sep 8, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1639
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet printhead and a method of manufacturing the inkjet printhead. The inkjet printhead includes a substrate including a trench formed to a predetermined depth in an upper portion of the substrate and an ink feed hole formed through a bottom surface of the trench to supply ink, an etch stop layer formed of a metal and formed on an inner surface of the trench, a plurality of heaters, to create bubbles by heating ink, formed on the substrate, a plurality of electrodes, to apply a current to the plurality of heaters, formed on the substrate, a chamber layer stacked on the substrate and including a plurality of ink chambers formed above respective heaters to receive ink from the ink feed hole via the trench, and a nozzle layer stacked on the chamber layer and including a plurality of nozzles to eject ink from the plurality of ink chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.