Transition metal carbide films for applications in ink jet printheads
US6209991A · kind A · utility
13Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1997 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Mar 4, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal ink jet printhead that includes a thin film substrate including a plurality of thin film layers, a plurality of ink firing heater resistors defined in the plurality of thin film layers, a patterned tantalum carbide layer disposed on the plurality of thin film layers, an ink barrier layer disposed over the tantalum carbide layer, and respective ink chambers formed in the ink barrier layer over respective thin film resistors, each chamber formed by a chamber opening in barrier layer. The tantalum carbide layer forms an oxidation and wear resistance layer and/or a barrier adhesion layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.