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Patent Searching and Data


Title:
PIEZOELECTRIC OSCILLATING DEVICE, AND METHOD OF MANUFACTURING PIEZOELECTRIC OSCILLATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/003315
Kind Code:
A1
Abstract:
[Problem] To improve the hermeticity of an annular sealing and joining material which seals an oscillating portion. [Solution] In a crystal oscillator 10, an oscillating-side first joining pattern 251 formed in an annular fashion on a crystal oscillating plate 2 is joined to a sealing-side first joining pattern 321 formed in an annular fashion on a first sealing member 3, and an oscillating-side second joining pattern 252 formed in an annular fashion on the crystal oscillating plate 2 is joined to a sealing-side second joining pattern 421 formed in an annular fashion on a second sealing member 4, thereby forming annular joining materials 11a, 11b. An oscillating member 22 which performs piezoelectric oscillation is hermetically sealed by the joining materials 11a, 11b. Inner peripheral edge portions 111a, 111b and outer peripheral edge portions 112a, 112b of the joining materials 11a, 11b are formed more densely than intermediate portions 113a, 113b between the inner peripheral edge portions 111a, 111b and the outer peripheral edge portions 112a, 112b.

Inventors:
YOSHIOKA HIROKI (JP)
Application Number:
PCT/JP2017/018088
Publication Date:
January 04, 2018
Filing Date:
May 12, 2017
Export Citation:
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Assignee:
DAISHINKU CORP (JP)
International Classes:
H03H9/02; H01L23/02; H03B5/32; H03H9/10
Domestic Patent References:
WO2010001885A12010-01-07
Foreign References:
JP2015122568A2015-07-02
JP2015216322A2015-12-03
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
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