Acoustic wave element and communication apparatus
US10833649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Apr 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/725
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In an IDT electrode of an acoustic wave element which includes first electrode fingers and second electrode fingers connected to potentials which are different from each other and arranged spaced apart from each other, the first electrode fingers includes first tip parts, and either of the first electrode fingers and the second electrode fingers includes, at a tip area extending along a direction of propagation of an acoustic wave and overlapping with the first tip parts, increase sections in which electrode volumes per unit lengths in a direction of extension of the first electrode fingers and the second electrode fingers are larger in comparison with that of the center area in which the electrode fingers intersect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.