| 摘要 |
A configuration is provided in which at least one end of a piezoelectric body active portion is defined by an end of a second electrode, a portion of configuring the piezoelectric body active portion of a first electrode is covered with a piezoelectric body layer, the first electrode and the piezoelectric body layer are extended to the outside of the end of the second electrode which defines the end of the piezoelectric body active portion, the first electrode includes an exposure portion which is not covered with the piezoelectric body layer and extends further outside than the end of the second electrode, and on the end of the piezoelectric body layer which forms the exposure portion, an independent electrode which is electrically independent from the second electrode is provided.
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