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:
Sep. 11, 2012
Filed:
Jul. 03, 2008
Naoto Inose, Saitama, JP;
Toshiaki Takeuchi, Saitama, JP;
Naoto Inose, Saitama, JP;
Toshiaki Takeuchi, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
Crystal devices are disclosed, of which an exemplary device includes a crystal frame comprising a crystal vibrating piece having an electrode pattern and an outer frame supporting the crystal vibrating piece. The device also includes a crystal package base including at least one connection electrode formed on a first main surface and at least one external electrode formed on a second main surface, wherein the second main surface is opposite the first main surface. The crystal frame and crystal base are layered together with a lid wafer to form a 3-layer sandwich. The layers of the sandwich are bonded together by siloxane bonding, which results in the connection electrodes contacting the electrode pattern on the crystal vibrating piece.