Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus
US7185540B2 · kind B2 · utility
12Cited by
5References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 21, 2006 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Apr 21, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a piezoelectric element 20, a first electrode layer 2 made of an alloy of at least one metal selected from the group consisting of cobalt, nickel, iron, manganese and copper and a noble metal is formed on a silicon substrate 1, and a piezoelectric layer 3 made of a rhombohedral or tetragonal perovskite oxide (e.g., PZT) is formed on the first electrode layer 2 so that the piezoelectric layer 3 is preferentially oriented along the (001) plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.