Acoustic wave device
US12425003B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 20, 2022 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Nov 17, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/145
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An acoustic wave device includes an IDT electrode and reflector electrodes on or above a piezoelectric substrate. A region in which first and second electrode fingers of the IDT electrode overlap each other in an acoustic wave propagation direction defines an intersection region. The intersection region includes a center region and first and second edge regions on both sides of the center region. Dielectric films extend from the first and second edge regions to outer side regions in the acoustic wave propagation direction of the reflector electrodes via the reflector electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.