Patent ID: 7772745
Filing Date: 2010-08-10
Classification: B81B,H01G,H01H,H01L

Abstract:
1. A MEMS device comprising: a substrate; a supporting unit provided on the substrate; a fixed electrode provided on the substrate; an actuator including a first electrode, a first piezoelectric film formed on the first electrode, and a second electrode formed on the first piezoelectric film, one end of the actuator being fixed onto the substrate with the supporting unit, the actuator extending in a direction connecting the supporting unit and the fixed electrode, the first electrode being located to face the fixed electrode; only one stopper unit located above a straight line connecting the supporting unit and the fixed electrode, and being located on the substrate so as to face the first electrode; a first contact electrode provided on the substrate; and a second contact electrode provided on the actuator so as to face the first contact electrode, wherein: the stopper unit is provided between the supporting unit and the fixed electrode; and the first contact electrode is located on the straight line connecting the supporting unit and the fixed electrode, and is located on the opposite side of the fixed electrode from the stopper unit.