Characterization of PZT thin films for micromotors
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چکیده
Piezoelectric membranes consisting of sputter deposited PbZrxTi1−xO3 (PZT) films on silicon diaphragms have been investigated for their resonance and piezoelectrical properties, in view of their application as stator of a micromotor. The behavior of resonance frequencies was studied as a function of membrane thickness and dc-bias, in order to derive the total stress in the films and the piezoelectric coupling constant (d31≈40 pm/V). The latter was also derived from the quasi-static deflections.
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تاریخ انتشار 2014