Patent ID: 8884712

Claim:
An oscillator comprising: a sealing member; a pair of electrode pads configured to electrically couple a piezoelectric resonator that effects piezoelectrical vibration; a plurality of connection pads configured to electrically couple an integrated circuit element constituting an oscillation circuit with the piezoelectric resonator; and wiring patterns configured to establish electrical continuity between the pair of electrode pads and the plurality of connection pads, wherein the piezoelectric resonator and the integrated circuit element are disposed side by side in plan view, the wiring patterns further comprising: an output wiring pattern configured to establish electrical continuity between one of the connection pads and an alternating current output terminal of the oscillation circuit; and a power source wiring pattern configured to establish electrical continuity between one of the connection pads and a direct current power source terminal of the oscillation circuit, wherein the electrode pads and the connection pads are disposed on one principal surface of a base material constituting the sealing member, and the wiring patterns are disposed at least on the one principal surface of the base material constituting the sealing member, wherein the power source wiring pattern has an extended portion which extends along a direction of the piezoelectric resonator and the integrated circuit element, wherein on the one principal surface, the pair of electrode pads are disposed closer to the extended portion of the power source wiring pattern than the output wiring pattern, and are arranged along the extended portion, wherein a cavity is disposed on the one principal surface of the base material constituting the sealing member, and a wall portion is provided in a manner as to enclose the cavity, wherein a bottom face of the cavity is formed in an approximately rectangular shape and is of a curved surface, and wherein on condition of (m<n), the plurality of connection pads are disposed in a (m×n) matrix shape on the bottom face of the cavity, and an n arrangement direction is a long side direction of the cavity.