Piezoelectric actuator
AssigneeBrother Kogyo Kabushiki Kaisha
InventorYoshikazu Takahashi
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Abstract
A piezoelectric actuator is provided, including a vibration plate, a piezoelectric layer, a plurality of individual electrodes arranged in two arrays, first and second common electrodes which have first and second facing portions facing parts of the individual electrodes and first and second connecting portions connecting the first and second facing portions respectively, and first and second wiring portions which are arranged on the vibration plate and which are connected to the first and second common electrodes respectively via first and second connecting wirings, wherein one of the first connecting wirings connects the first connecting portion and one of the first wiring portion while striding over the second connecting portion.
Claims7
A piezoelectric actuator comprising:
- a piezoelectric layer;
- a common electrode arranged on an upper surface of the piezoelectric layer;
- two individual electrode arrays, each of the two individual electrode arrays including a plurality of individual electrodes aligned in an array direction;
- and
- two common traces connected to the common electrode and extending in the array direction.
Dependencies are inferred from the claim text.