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:
Aug. 19, 2014
Filed:
Oct. 14, 2011
Takehiro Takahashi, Saitama, JP;
Takehiro Takahashi, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
In a piezoelectric device, a piezoelectric substrate includes a vibrating piece with respective excitation electrodes on each principal surface thereof. The piezoelectric substrate is surrounded by an outer frame separated therefrom by a through-void except for a supporting portion connecting the vibrating piece to the frame. Extraction electrodes extend from the excitation electrodes across the supporting portion to the frame, and on edge surfaces of the supporting portion. The piezoelectric substrate is sandwiched between a lid and a package base to form a piezoelectric device. The outer surface of the package base is a mounting surface to which the extraction electrodes extend via an edge surface of the through-void in a region that does not overlap the excitation electrode.