Length-extentional quartz resonator
US5107164A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 1989 |
| Grant date | Apr 21, 1992 |
| Priority date | — |
| Expiry date | May 22, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H9/19
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A length-extentional quartz resonator has a pair of linearly arranged longitudinal oscillating portions supported to undergo dominant length-extentional oscillation having an oscillating frequency in the range from 1.04 MHz to 1.06 MHz. A rectangular frame member is arranged to support and surround the oscillating portions and has the outer overall length of 4000 .mu.m.+-.200 .mu.m. The frame member has a pair of longitudinal frame portions connected to the oscillating portions through transverse support portions to undergo flexual oscillation, and having width set in the range from 110 .mu.m to 260 .mu.m effective to suppress coupling between the dominant length-extentional oscillation and the flexual oscillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.