Patent ID: 8093784
Filing Date: 2012-01-10
Classification: H01L,H02N

Abstract:
1. A piezoelectric power generating element comprising: a support member; a strip-shaped vibration beam; a piezoelectric layer; and a pair of electrodes that sandwich the piezoelectric layer therebetween, wherein first and second ends of the vibration beam are fixed to the support member, the piezoelectric layer and the pair of electrodes are provided on a surface of the vibration beam, the vibration beam extends in a plane when the vibration beam is not vibrating, the vibration beam has a first portion that extends from the first end fixed to the support member, a second portion that extends from the second end fixed to the support member, and a third portion that connects an end of the first portion opposite to the first end and an end of the second portion opposite to the second end, and the vibration beam has a shape such that, when viewed in a direction perpendicular to the plane,