| 摘要 |
<p>Disclosed is a piezoelectric device which includes a piezoelectric element which is stacked to alternate a positive electrode layer and a negative electrode layer on a device layer, a polymer layer which is stacked on at least one surface of the piezoelectric element, a first external electrode which is stacked to be in contact with the polymer layer, and a second external electrode which is separated from the first external electrode and is stacked to be in contact with the polymer layer.</p> |
