Printhead having a thin pre-fired piezoelectric layer
US7303264B2 · kind B2 · utility
10Cited by
351References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2005 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Aug 29, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printhead having a monolithic semiconductor body with an upper face and a lower face. The body defines a fluid path including a pumping chamber, a nozzle flow path, and a nozzle opening. The nozzle opening is defined in the lower face of the body and the nozzle flow path includes an accelerator region. A piezoelectric actuator is associated with the pumping chamber. The actuator includes a piezoelectric layer having a thickness of about 50 micron or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.