Process for manufacturing high frequency quartz resonators
US4701987A · kind A · utility
12Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1986 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Feb 4, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The resonator obtained by this process comprises an active central portion, the thickness of which is reduced until the desired frequency is obtained. This may be of the order of 50 to 100 MHz. This central portion is surrounded by a considerably thicker reinforcing frame to which it is mechanically connected by means of one or more connecting members which are thinner than the active portion. The connecting member or members eliminate the need for coupling between the reinforcing frame and the active portion. Electrodes are provided for exciting the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.