The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 26, 2017

Filed:

Aug. 21, 2014
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Hajime Kubota, Kawasaki, JP;

Masayuki Itoh, Kawasaki, JP;

Masakazu Kishi, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/053 (2006.01); H01L 41/22 (2013.01); H03H 9/17 (2006.01); H01L 41/047 (2006.01); H01L 41/29 (2013.01); H03H 3/02 (2006.01); H03H 9/10 (2006.01); H03H 9/21 (2006.01);
U.S. Cl.
CPC ...
H03H 9/17 (2013.01); H01L 41/0475 (2013.01); H01L 41/29 (2013.01); H03H 3/02 (2013.01); H03H 9/1035 (2013.01); H03H 9/1021 (2013.01); H03H 9/21 (2013.01); Y10T 29/42 (2015.01);
Abstract

A crystal resonator includes: lower glass plates on which first electrodes are formed so as to extend from side surfaces to a bottom surface of the lower glass plates; a crystal plate which is provided over the lower glass plates and on which second electrodes to be coupled to the first electrodes are formed on a surface in contact with the lower glass plates; and an upper glass plate which is provided over the crystal plate; wherein the side surfaces of the lower glass plates on which the first electrodes are formed are provided with a protrusion that extends in parallel with a top surface and the bottom surface of the lower glass plates and that extends from one end to the other end of each of the side surfaces, and wherein the first electrodes are formed on the side surfaces that include surfaces of the protrusion.


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