CPC H03H 9/2457 (2013.01) [B81B 7/0038 (2013.01); H03H 9/0595 (2013.01); H03H 9/1057 (2013.01); B81B 2201/0271 (2013.01); B81B 2203/0118 (2013.01)] | 18 Claims |
1. A resonator comprising:
a base;
at least three vibrating arms that include a pair of outer vibrating arms and at least one inner vibrating arm that is between the pair of outer vibrating arms in a plan view of the resonator, wherein each of the at least three vibrating arms includes a fixed end connected to a front end of the base and an open end spaced away from the front end, with each vibrating arm further including an arm portion that extends from the fixed end and a tip connected to the arm portion and opposite the fixed end;
a frame constructed for holding the base; and
a holding arm that connects the base to the frame and that includes a holding side arm that extends parallel to one outer vibrating arm of the pair of outer vibrating arms, such that the holding side arm extends between the outer vibrating arm and the frame in the plan view of the resonator,
wherein a width between a side surface of the tip of the one outer vibrating arm and a side surface of the frame facing the side surface of the tip is larger than a width between a side surface of the holding side arm and the side surface of the frame or a width between a side surface of the arm portion of the one outer vibrating arm and a side surface of the holding side arm that faces the arm portion, and
wherein a width between a side surface of the tip of the one outer vibrating arm and a side surface of the tip of the at least one inner vibrating arm that is directly next to the one outer vibrating arm and is facing the side surface of the tip is a same width as the width between the side surface of the tip of the outer vibrating arm and the side surface of the frame that is facing the side surface of the tip of the one outer vibrating arm.
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