Composite ink jet printhead and relative manufacturing process
US7159969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2003 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Sep 11, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The composite printhead (1) is made up of an active module (7), consisting of a thin plate (8) of silicon, on which a plurality of chambers (14) is produced, housing corresponding heating resistors (10), electrically connected through an interconnection network to corresponding external contact pads (37, 42), and of a support element (3) for the active module, in turn consisting of a portion of plate (22) of a rigid, insulating material, provided with an elongated slot shape, ink feeding duct (5), traversing the thickness of the support element (3). The active module (7) is built separately from the support element (3) and later mounted integrally upon the support element (3). Also mounted later to the support (3) is a frame (16) surrounding the active module (7) to provide hydraulic sealing. Finally the module (7) and the frame (16) are covered with a metallic or resin lamina (17), bearing an array of nozzles (18) aligned with and facing the ejection chambers (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.