Surface acoustic wave device including a confinement layer
US9276558B2 · kind B2 · utility
10Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2014 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Oct 24, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/725
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In a surface acoustic wave device, a plurality of surface acoustic wave elements include piezoelectric bodies having the same cut-angle. A propagation azimuth of a surface acoustic wave in at least one of surface acoustic wave elements is different from a propagation azimuth of a surface acoustic wave in at least another one of the surface acoustic wave elements. In each of the surface acoustic wave elements, a confinement layer configured to confine the surface acoustic wave inside the piezoelectric body is disposed on the piezoelectric body at the side opposite to the side where an electrode is located.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.