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US 9,960,751 B2Granted
Piezoelectric vibrator, electronic apparatus, and vehicle
AssigneeSeiko Epson Corporation
InventorToshihiro Ii
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AssigneeSeiko Epson Corporation
InventorToshihiro Ii
Estimating the term…
A piezoelectric vibrator includes a piezoelectric substrate including a first surface, a second surface that is opposites to the first surface, and a connection part that connects the first surface and the second surface to each other, and a pair of excitation electrodes disposed respectively on the first surface and the second surface. The connection part includes a plurality of protruding parts disposed in an area between the excitation electrode and an outer edge of the piezoelectric substrate. Top parts of the protruding parts are arranged so that the closer to the outer edge the top part is, the closer to the second surface the top part is, and lower parts of the protruding parts adapted to connect the adjacent protruding parts to each other are arranged so that the closer to the outer edge the lower part is, the closer to the second surface the lower part is.
A piezoelectric vibrator comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Having a single resonator: consisting of quartz
For bulk acoustic wave devices: consisting of adhesive elements
The enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device: the BAW device…
Driving means, e.g. electrodes, coils: for networks consisting of piezoelectric or electrostrictive materials
About 10 years of term left · ends 19 Oct 2036 (estimated)
This application claims priority to Japanese Patent Application No. 2015-206141, filed Oct. 20, 2015, the entirety of which is hereby incorporated by reference.
1. Technical Field
The present invention relates to a piezoelectric vibrator, and an electronic apparatus and a vehicle each equipped with the piezoelectric vibrator.
The embodiments of invention will be described with reference to the accompanying drawings, wherein like numbers reference like elements.
FIG. 1 is a plan view showing a schematic configuration of a quartz crystal vibrator according to a first embodiment of the invention.
FIG. 2 is a cross-sectional view along the line A-A shown in FIG. 1.
Some embodiments in which the invention is implemented will hereinafter be described with reference to the accompanying drawings.
First Embodiment
Firstly, a quartz crystal vibrator as an example of a piezoelectric vibrator will be described.