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:
May. 26, 2009
Filed:
Mar. 15, 2007
Applicant:
Kouichi Moriya, Saitama, JP;
Inventor:
Kouichi Moriya, Saitama, JP;
Assignee:
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 5/32 (2006.01); H01L 41/053 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface mount crystal oscillator has a package body having a recess and formed with a step on an inner wall of the recess, a flat base plate having a peripheral region secured to the step, a crystal blank secured to the flat base plate, an IC chip having an oscillation circuit, using the crystal blank, integrated therein, and secured to a bottom surface of the recess, and a cover for closing the recess. The crystal blank is disposed above the IC chip within the recess, and the IC chip and the crystal blank are hermetically sealed within the recess.