PIEZOELECTRIC VIBRATOR, OSCILLATOR, ELECTRONIC DEVICE, AND RADIO-CONTROLLED TIMEPIECE
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United States of America Patent
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Issued Date -
Sep 12, 2013
app pub date -
Mar 8, 2013
filing date -
Mar 9, 2012
priority date (Note) -
Abandoned
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Abstract
Provided are a piezoelectric vibrator, an oscillator, an electronic device, and a radio-controlled timepiece capable of preventing lowering of an electrical characteristic of a routing electrode during the frequency adjustment with respect to a piezoelectric vibrator whose frequency can be adjusted by irradiating a laser beam onto a weight metal film formed on a distal end of a vibrating arm portion. In a piezoelectric vibrator, a routing electrode is arranged in an offset manner toward one side with respect to a center line of a base substrate in the lateral width direction, and a piezoelectric vibrating piece is arranged in an offset manner toward a side opposite to the routing electrode with respect to the center line of the base substrate in the lateral direction.
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