Patent ID: 8013498
Filing Date: 2011-09-06
Classification: H03H,Y10T

Abstract:
1. A piezoelectric vibrating reed, comprising: a piezoelectric plate having a pair of vibrating arms extending parallel to each other, a base portion integrally fixing the pair of vibrating arms thereto at a base end side thereof, and groove portions on principal surfaces of the pair of vibrating arms, the groove portions having the same length from base end portions toward tip end portions of the vibrating arms; and an electrode film comprising a base metal layer and a finishing metal layer, the electrode film laminated on outer surfaces of the piezoelectric plate and configured to vibrate the pair of vibrating arms when a predetermined voltage is applied thereon, wherein the finishing metal layer of the electrode film is at least partially discontinuous such that the base metal layer is exposed in regions of the vibrating arms between the base end portions and the tip end portions.