Acoustic surface-wave devices using mono crystalline bismuth silicon oxide substrate
US3956647A · kind A · utility
5Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Oct 15, 1974 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Oct 15, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/02866
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An acoustic surface wave filter comprising a monocrystalline wafer of bismuth silicon oxide having a special orientation of the ASW propagation surface and the interdigital transducers relative to the crystal plane whereby pick-up of undesired bulk waves is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.