Electric field control of surface acoustic wave velocity
US7687971B2 · kind B2 · utility
9Cited by
19References
25Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 15, 2006 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Feb 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/25
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus in one example comprises a piezoelectric layer, a first electrode along a first side of the piezoelectric layer, and a second electrode along a second side of the piezoelectric layer. The first and second electrodes are adapted to receive a voltage bias to create an electric field in the piezoelectric layer that controls an acoustic velocity of a surface acoustic wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.