US Patent No. 10,658,972

PIEZOELECTRIC OSCILLATOR AND PIEZOELECTRIC OSCILLATION DEVICE


Patent No. 10,658,972
Issue Date May 19, 2020
Title Piezoelectric Oscillator And Piezoelectric Oscillation Device
Inventorship Tomohiro Oya, Nagaokakyo (JP)
Hiroaki Kaida, Nagaokakyo (JP)
Yoshihiro Ikeda, Nagaokakyo (JP)
Assignee MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu (JP)

Claim of US Patent No. 10,658,972

1. A piezoelectric oscillator comprising:a base member;
a first lid member disposed on and joined to a first main surface of the base member so as to define a first sealed space;
a piezoelectric resonator accommodated in the first sealed space;
a second lid disposed on and joined to the base member so as to define a second sealed space, the first lid member being located in the second sealed space;
wherein:
the base member has a recess;
the piezoelectric resonator is mounted on a bottom surface of the recess of the base member;
the first lid member has a recess that opens so as to face the bottom surface of the recess of the base member on which the piezoelectric resonator is mounted and the piezoelectric resonator is disposed in the recess of the first lid member; and
the second lid member is joined to a joining edge of the recess of the base member which joining edge is located above the bottom surface of the recess of the base member.