Patent ID: 8421308
Filing Date: 2013-04-16
Classification: H01L,H02N

Abstract:
1. A vibratory actuator, comprising: a body including a plurality of piezoelectric layers stacked in a stacking direction; and internal electrodes, each of which is sandwiched between the piezoelectric layers, wherein external electrodes through which power is fed from outside are provided on a principal surface exposed to an outside of the outermost piezoelectric layer; the body has side surfaces which are parallel to the stacking direction, and side electrodes provided on the side surfaces; the side electrodes are connected to the internal electrodes, and are connected to the external electrode at an edge defined by the side surface and the principal surface on which the external electrode is provided; and at least one of the external electrodes is connected to a corresponding one or more of the internal electrodes through two or more of the side electrodes.