Split ladder acoustic wave filters
US10917072B2 · kind B2 · utility
103Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2019 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Dec 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/725
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Filter devices and methods of fabricating filter devices. A filter device includes a first chip and a second chip. The first chip has a first material stack and contains one or more series resonators of a ladder filter circuit. The second chip has a second material stack and contains one or more shunt resonators of the ladder filter circuit. The first material stack and the second material stack are different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.