Patent ID: 7459833
Filing Date: 2008-12-02
Classification: H01G,H01H,H01L

Abstract:
1. A thin film piezoelectric actuator comprising a driving part at least one end of which is supported by an anchor portion, the driving part including: a piezoelectric film; a first lower electrode provided under a first region of the piezoeleciric film; a second lower electrode provided under a second region different from the first region of the piezoelectric film; a first upper electrode provided opposite to the first lower electrode on the piezoelectric film; a second upper electrode provided opposite to the second lower electrode on the piezoelectric film; a first connection part that electrically connects the first lower electrode and the second upper electrode via a first via hole formed in the piezoelectric film; and a second connection part that electrically connects the second lower electrode and the first upper electrode via a second via hole formed in the piezoelectric film.