Miniature GT-cut quartz resonator
US4447753A · kind A · utility
67Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1981 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Nov 20, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2003/0428
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The GT-cut quartz resonator resonated by two longitudinal modes and provided with the masses for frequency-temperature characteristics adjustment and frequency adjustment. The frequency-temperature characteristics and the frequency of the GT-cut quartz resonator are adjusted by eliminating the masses. Consequently, the quartz resonator adjusted to the normal frequency and having the excellent frequency-temperature characteristics is attained. Further the GT-cut quartz resonator of small and thin size is attained by making the resonant portion and the supporting portions in one piece by photolithographic technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.