| 摘要 |
A piezoelectric element having a structure capable of suppressing deformation during the fabrication thereof is disclosed. The piezoelectric element comprises a drive portion 101 including a plurality of ceramic layers 11 of a piezoelectric ceramic, a plurality of internal electrode layers 2 formed of a base metal as a main component for supplying electricity to the ceramic layers 11, and a dummy portion 103 formed at least on one end surface of the ceramic layers 11 of the drive portion 101 along the direction of stacking thereof, the ceramic layers 11 and the internal electrode layers 2 being stacked alternately. The dummy portion 103 is composed of ceramic and has at least one dummy electrode layer 3 of the same material as the internal electrode layers 2.
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