Patent ID: 7732995

Claim:
A piezoelectric device, comprising: a lower substrate; an upper substrate; an intermediate substrate sandwiched between the lower substrate and the upper substrate, the intermediate substrate including: a piezoelectric vibrating portion; a frame surrounding a periphery of the piezoelectric vibrating portion; a connecting portion coupling the piezoelectric vibrating portion and the frame; a first exciting electrode disposed on an upper surface of the piezoelectric vibrating portion; a second exciting electrode disposed on a lower surface of the piezoelectric vibrating portion; a first wiring line electrically coupled to the first exciting electrode; and a second wiring line electrically coupled to the second exciting electrode; and an inside surface coupling an upper surface and a lower surface of the frame and having a slanted surface having an interior angle with respect to one of the upper surface and the lower surface, the angle being more than 90 degrees, one of the first wiring line and the second wiring line being disposed to a surface of the slanted surface.