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:
Apr. 14, 2009
Filed:
Mar. 22, 2007
Hideo Tanaya, Suwa, JP;
Hideo Tanaya, Suwa, JP;
Epson Toyocom Corporation, , JP;
Abstract
[Problem to be Solved] A piezoelectric device is provided in which, when the piezoelectric device is miniaturized, drive level characteristics are favorable, stress does not remain in a bonding portion of a housing body, and a factor causing deterioration of characteristics does not remain. [Solution] A piezoelectric device includes a base substrate, a resonator elementwith a frame, and a lidlayered over and fixed to the resonator element with a frame, in which the base substrate, the resonator element with a frame, and the lid are all formed from a same material. The resonator elementwith a frame includes a resonator element main bodyand a frame section. Each bonding surface bonding the base substrate, the resonator element with a frame, and the lid is bonded by surface activation bonding and hermetically sealed. An electrode for driving of the resonator element main bodyis routed to the frame section as an extraction electrode. As a result of bonding, the extraction electrode of the frame section is electrically connected to a mounting electrode serving as an external terminal provided on the base substrate, via a conductive pattern formed on the bonding surface of the base substrate.