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Title:
PIEZOELECTRIC OSCILLATOR
Document Type and Number:
WIPO Patent Application WO/2021/229872
Kind Code:
A1
Abstract:
A crystal oscillator 1 according to the present invention is provided with: a crystal oscillator element 40; a first substrate 10 on which the crystal oscillator element 40 is mounted; a resin layer 30 which is provided around the crystal oscillator element 40 on the first substrate 10; and a second substrate 20 which is arranged on a side of the first substrate 10, said side being provided with the crystal oscillator element 40 and the resin layer 30, so as to form an internal space 35 between itself and the first substrate 10, said internal space 35 being surrounded by the resin layer 30 and internally containing the crystal oscillator element 40. The second substrate 20 has a main surface 22, which serves as an external mounting surface that is mounted on an external substrate, on the reverse side of a surface that faces the first substrate 10.

Inventors:
KIZU TORU (JP)
KAIDA HIROAKI (JP)
NAGAMINE YUICHIRO (JP)
Application Number:
PCT/JP2021/004218
Publication Date:
November 18, 2021
Filing Date:
February 05, 2021
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/02
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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