Method of manufacturing a monolithic ink-jet printhead
US7334335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Dec 29, 2026 |
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, and a method of manufacturing the same, includes a substrate having an ink chamber, an ink channel, and a manifold, a nozzle plate formed on the substrate, a nozzle, a heater, and a conductor. The ink chamber includes sidewalls formed to a predetermined depth from the front surface of the substrate for defining side surfaces of the ink chamber and a bottom wall formed parallel to the front surface of the substrate at the predetermined depth from the front surface of the substrate for defining a bottom surface of the ink chamber. The nozzle plate includes a plurality of passivation layers, a heat dissipating layer being stacked on the passivation layers, and the nozzle for ejecting ink out of the printhead. The heater is positioned above the ink chamber and heats ink in the ink chamber and the conductor delivers a current to the heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.