Piezoelectric vibrating pieces, frames, and devices
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United States of America Patent
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Mar 15, 2011
Grant Date -
Apr 22, 2010
app pub date -
Oct 15, 2009
filing date -
Oct 16, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Piezoelectric vibrating pieces are disclosed that have a base and a pair of vibrating arms extending from one end of the base in a designated direction. A respective groove is defined in each of the upper and lower surfaces of each vibrating arm. The grooves extend in the designated direction and have a first width. Each groove includes a respective rib feature having a second width that is narrower than the first width. A piezoelectric frame includes the piezoelectric device and an outer frame surrounding the device. A piezoelectric device includes the piezoelectric vibrating piece or piezoelectric frame, a lid, and a base.
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