Monolithic ink-jet printhead having a heater disposed between dual ink chambers and method for manufacturing the same
US7018017B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2003 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Jan 6, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A monolithic ink-jet printhead includes a substrate having a lower ink chamber formed on an upper surface thereof, a manifold for supplying ink to the lower ink chamber formed on a bottom surface thereof, and an ink channel providing communication therebetween; a nozzle plate having a plurality of passivation layers and a metal layer sequentially stacked on the substrate, the nozzle plate having an upper ink chamber formed therein on a bottom surface of the metal layer, a nozzle in communication with the upper ink chamber formed on an upper surface of the metal layer, and a connection hole providing communication between the upper ink chamber and the lower ink chamber; a heater located between the upper ink chamber and the lower ink chamber for heating ink contained in the lower and upper ink chambers; and a conductor electrically connected to the heater to apply a current to the heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.