Singly rotated orientation of quartz crystals for novel surface acoustic wave devices
US4670681A · kind A · utility
8Cited by
9References
8Claims
0Family size
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Key dates
| Filing date | Jul 29, 1986 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Jul 29, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/02551
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An ST cut quartz crystal for surface acoustic wave device application defined by the Euler angles lambda (.lambda.) equal about 0.degree., mu (.mu.) equal about 132.75.degree. and with an acoustic wave propagation direction theta (.theta.) equal about plus or minus 25.degree..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.