Invention Grant
US08476804B2 Piezoelectric MEMS element, voltage control oscillator, communication apparatus, and method of manufacturing piezoelectric drive type MEMS element 有权
压电MEMS元件,压控振荡器,通信装置和制造压电驱动型MEMS元件的方法

Piezoelectric MEMS element, voltage control oscillator, communication apparatus, and method of manufacturing piezoelectric drive type MEMS element
Abstract:
A piezoelectric drive type MEMS element includes: a first substrate including, in a portion thereof, a movable part which is driven by a piezoelectric drive section to be displaced in a convex shape, a movable electrode being provided on a surface of the movable part; and a second substrate which is bonded to the first substrate and supports a fixed electrode facing the movable electrode via a prescribed gap, wherein the piezoelectric drive section includes a piezoelectric film provided on a region of the first substrate which forms the movable part as a portion of the movable part, and a pair of electrodes disposed so as to sandwich the piezoelectric film.
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