Multilayer piezoelectric devices and method of producing same
US7538475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2006 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | Mar 14, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/063
Abstract
A multilayer piezoelectric device has a laminated body having piezoelectric layers laminated in the direction of a given axis “A” and positive and negative internal electrode layers are alternatively disposed between neighboring piezoelectric layers. The device further has a underlying layer disposed on a side of the laminated body and electrically connected to one of the internal electrode layers, a first conductive reinforcing layer joined to the underlying layer, a second conductive reinforcing layer joined to the first conductive reinforcing layer, and a conductive joining material joining the underlying layer to the first conductive reinforcing layer. The second conductive reinforcing layer is not directly joined to the underlying layer by means of the conductive joining material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.