Elastic wave device with a dielectric layer on the comb-shaped electrodes
US8085116B2 · kind B2 · utility
0Cited by
7References
12Claims
0Family size
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Key dates
| Filing date | Mar 20, 2009 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Mar 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/1457
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An elastic wave device is described which includes a piezoelectric substrate, comb-shaped electrodes having teeth electrodes that are disposed so as to face each other on the piezoelectric substrate, a non-overlapping area in which the teeth electrodes of the comb-shaped electrodes do not overlap each other, and a overlapping area in which the teeth electrodes overlap each other and the velocity of sound is higher than that in the non-overlapping area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.