Piezoelectric actuator and fluid ejection head having the same

Details Piezoelectric actuator and fluid ejection head having the same Piezoelectric actuator and fluid ejection head having the same

2007-09-04

2007-09-04

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S331000

Reexamination Certificate

active

10498600

ABSTRACT:
A first common electrode is formed on a vibration plate and to be fixed at a predetermined potential. A first piezoelectric layer is laminated on the first common electrode and having a first thickness. A drive electrode is laminated on the first piezoelectric layer, to which a drive signal is supplied externally. A second piezoelectric layer is laminated on the drive electrode and having a second thickness thicker than the first thickness. A second common electrode is laminated on the second piezoelectric layer and to be fixed at the predetermined potential.

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