Length-extentional quartz resonator
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United States of America Patent
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-
Apr 21, 1992
Grant Date -
N/A
app pub date -
May 22, 1989
filing date -
May 20, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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