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Patent Searching and Data


Title:
CRYSTAL OSCILLATING PIECE AND CRYSTAL OSCILLATOR
Document Type and Number:
WIPO Patent Application WO/2017/006941
Kind Code:
A1
Abstract:
A crystal oscillating piece according to the present invention is characterized by: being formed in a plate shape, said piece being provided with an AT-cut crystal piece formed in a rectangular shape when viewed from the direction of a normal to the principal surface thereof, and a first external electrode and a second external electrode that are provided to the principal surface so as to be aligned along the short-side direction along which the short side of the principal surface extends; the long side of the principal surface being substantially parallel to the Z' axis of the crystal piece, the short side of the principal surface being substantially parallel to the X axis of the crystal piece, the frequency of principal vibration of the crystal piece being 20.0-60.0 MHz, and 0.050≤P≤−0.0047×F+1.728, where the short-side-direction interval between the first external electrode and the second external electrode is represented by P (mm) and the frequency of principal vibration of the crystal piece is represented by F (MHz).

Inventors:
KAWAI RYUICHI (JP)
YAMAMOTO HIROYUKI (JP)
KAIDA HIROAKI (JP)
Application Number:
PCT/JP2016/069935
Publication Date:
January 12, 2017
Filing Date:
July 05, 2016
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/19; H03H9/10
Foreign References:
JP2011061418A2011-03-24
JP2007251918A2007-09-27
JP2013021667A2013-01-31
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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