Title:
CRYSTAL OSCILLATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/162948
Kind Code:
A1
Abstract:
Provided is a crystal oscillation device which does not readily transfer heat to a temperature-sensitive element or a crystal oscillator. This crystal oscillation device (1) comprises: a mounting substrate (2); connection electrodes (4a, 4b), each of which extends to the upper surface (2a) of the mounting substrate (2) via a side surface of the mounting substrate (2); a first package material (9) which is provided on the mounting substrate (2); the crystal oscillator (7) which is provided on the upper surface (9a) of the first package material (9); and the temperature-sensitive element (14) which is installed on the lower surface (9b) of the first package material (9). The connection electrodes (4a, 4b) each have a first section (4A) which is positioned on the upper surface (2a) of the mounting substrate (2). In a planar view, if a first direction is the direction in which the first sections (4A) of the connection electrodes (4a, 4b) extend towards electrode lands (5a, 5b), and if a second direction is the direction orthogonal to the first direction, a dimension in the second direction along one part of the first sections (4A) of the connection electrodes (4a, 4b) is shorter than a dimension in the second direction along the remaining section of the connection electrodes (4a, 4b).
Inventors:
MORITA TORU (JP)
KAKUYA TOSHIYUKI (JP)
TAKAYAMA KENJI (JP)
KAKUYA TOSHIYUKI (JP)
TAKAYAMA KENJI (JP)
Application Number:
PCT/JP2015/051345
Publication Date:
October 29, 2015
Filing Date:
January 20, 2015
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03B5/32; H01L23/34; H03H9/02
Foreign References:
| JP2007049764A | 2007-02-22 | |||
| JP2007235284A | 2007-09-13 | |||
| JP2006050529A | 2006-02-16 | |||
| JP2009194652A | 2009-08-27 |
Attorney, Agent or Firm:
MIYAZAKI & METSUGI (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
Patent business corporation Miyazaki and table-of-contents patent firm (JP)
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