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:
Jul. 07, 2009
Filed:
Feb. 05, 2007
Keisuke Kigawa, Nishitokyo, JP;
Mitsumasa Sakurai, Nagano, JP;
Keisuke Kigawa, Nishitokyo, JP;
Mitsumasa Sakurai, Nagano, JP;
Citizen Holdings Co., Ltd., Tokyo, JP;
Abstract
The present invention is to prevent melted sealant from flowing into the interior of a case of an electronic component package that is provided with a shielding electrode on the inner surface of the case, fill a through-hole with the sealant with reliability, and perform vacuum airtight sealing. The electronic component packagehas a casethat has an opening and stores an electronic component (piezoelectric oscillator) in the storage inside, and a lidthat is joined to the rim of the opening to cover the opening, and airtightly seals a through-holeprovided on the bottom partof the caseto communicate with the outside, by using a sealant. The electronic component package is provided with a shielding electrodeon the inner surface of the case to remove a noise influence, and further provided with a configuration to set a part (nonmetal part) between the through-holeand the shielding electrode, the part being low in wettability with the melted sealant, thereby making it difficult to flow the melted sealantfrom the through-holeinto the casealong the shielding electrode, preventing the melted sealantfrom flowing into the case