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.
Patent No.:
Date of Patent:
Nov. 29, 2011
Filed:
Nov. 04, 2009
Kouichi Moriya, Saitama, JP;
Kouichi Moriya, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
There is provided a configuration in which a lead-out electrode that extends out from an excitation electrode provided on a lower surface of a crystal piece facing an inner bottom surface of a container main body, is connected to a crystal terminal of an IC chip via a conducting path provided on the inner bottom surface of the container main body, and the conducting path is superimposed, in plan view, on the excitation electrode of the lower surface of the crystal piece, and the excitation electrode of the lower surface and the conducting path have the same electric potential, to thereby suppress the occurrence of stray capacity therebetween. As a result, stray capacity occurring in the conducting path that connects the excitation electrode and the IC terminal is made small, thereby preventing variations in oscillating frequency.