PIEZOELECTRIC RESONATOR ELEMENT AND PIEZOELECTRIC DEVICE
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United States of America Patent
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Issued Date -
Sep 4, 2008
app pub date -
Aug 17, 2007
filing date -
Aug 18, 2006
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Abandoned
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Abstract
A piezoelectric resonator element includes: a base in a predetermined length, the base being made of a piezoelectric material; a plurality of resonating arms extending from a first end of the base; a joining part connected to a second end apart from the first end of the base by a predetermined distance; a connecting part connected to the joining part and extending in a width direction of the piezoelectric resonator element; a supporting arm connected to the connecting part and extending in a same direction as the resonating arm at an outer side of the plurality of resonating arms. A ratio L3/h is 40% or less where h is a length dimension from the first end of the base to the second end opposite to the resonating arms of the piezoelectric resonator element, and L3 is a width dimension of the connecting part connecting the supporting arm to the base through the joining part.
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