Patent ID: 8310137

Claim:
A resonator element, comprising: three or more resonating arms, each of the resonating arms including: a lower electrode provided above a first surface of the resonating arm; a piezoelectric film formed above an upper side of the lower electrode; an upper electrode formed above an upper side of the piezoelectric film; a first wiring line coupled to the lower electrode; and a second wiring line coupled to the upper electrode; and a base to which the resonating arms are connected, wherein the resonating arm vibrates in a thickness direction of the resonating arm, wherein the resonating arms adjacent to each other vibrate in opposite directions from each other, wherein the first surface is opposed to a second surface in the thickness direction, and wherein the second wiring line is drawn out to the second surface through side surfaces of the resonating arm so as to surround the resonating arm with the second wiring line.