Patent ID: 9106200
Filing Date: 2015-08-11
Classification: H03H

Abstract:
1. A piezoelectric vibrating piece comprising: an excitation unit in a rectangular shape including a first side and a second side, the first side extending in a first direction, the second side extending in a second direction perpendicular to the first direction; a framing portion that surrounds the excitation unit and has a space; and a connecting portion that connects the first side of the excitation unit and the framing portion, the connecting portion having a first thickness in a third direction perpendicular to the first direction and the second direction, wherein the excitation unit includes a first region, a second region, and a third region, a pair of excitation electrodes are disposed on two main surfaces of the first region, the second region includes at least a part of the first side, the second region with the first thickness being directly connected to the connecting portion, the third region is disposed between the first region and the second region, the third region is a region other than the first region and the second region, the third region has a second thickness in the third direction, and a thickness of the second region in the third direction is thicker than the second thickness, wherein the space of the framing portion is located at regions other than the connecting portion between the excitation unit and the framing portion.