Patent ID: 8237330
Filing Date: 2012-08-07
Classification: H01L,H02N,Y10T

Abstract:
1. A vibrating element of an ultrasonic motor, the vibrating element comprising: a vibrating member; and a piezoelectric body which is attached to the vibrating member and produces a traveling wave to vibrate the vibrating member when electric power is applied to the piezoelectric body, wherein the piezoelectric body comprises: a first piezoelectric layer having a first surface, a second surface opposite to the first surface, and an outer circumferential surface, the first piezoelectric layer being attached to the vibrating member, a second piezoelectric layer having a first surface, a second surface opposite to the first surface, and an outer circumferential surface, the second piezoelectric layer being attached to the first piezoelectric layer, an electrode part comprising a plurality of electrodes formed on the first surfaces and the second surfaces of the first and second piezoelectric layers, and an electrode connecting part formed on the outer circumferential surfaces of the first and second piezoelectric layers to selectively connect the plurality of electrodes to one other.