Crystal resonator
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United States of America Patent
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-
Sep 1, 2020
Grant Date -
Feb 22, 2018
app pub date -
Aug 21, 2017
filing date -
Aug 22, 2016
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Abstract
A crystal resonator vibrates in a thickness-shear mode. The crystal resonator includes excitation electrodes being disposed on a front surface and a back surface of a crystal element. The excitation electrodes are disposed on the crystal element to have a positional relationship, where a displacement distribution at an edge of the excitation electrode on the front surface is identical to a displacement distribution at an edge of the excitation electrode on the back surface.
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