Resonator element, resonator, oscillator, electronic apparatus, and mobile object
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United States of America Patent
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Apr 18, 2017
Grant Date -
May 21, 2015
app pub date -
Nov 14, 2014
filing date -
Nov 16, 2013
priority date (Note) -
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Abstract
A resonator element includes a resonator blank having a base portion, a vibrating arm, a linking portion, and a connecting portion connects the base portion and the linking portion to each other, in which, when a thickness of the resonator blank is set to T, a width of the base portion is set to W1, and a width of the connecting portion is set to W2, a relationship of 50 μm≦T≦210 μm is satisfied, and a relationship of 0.067≦W2/W1≦0.335 is satisfied, and in which, when a width of the arm section of the vibrating arm is set to W3, and a width of the hammer head is set to W4, a relationship of W4≧2.8×W3 is satisfied.
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