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. 30, 2003
Filed:
May. 14, 2001
Seung Gyo Jeong, Kyungki-do, KR;
Ji Hwan Shin, Kyungki-do, KR;
Samsung Electro-Mechanics Co., Ltd., Kyungki-do, KR;
Abstract
In a method and a device for sealing a ceramic package of a SAW (Surface Acoustic Wave) filter, when making a ceramic package of an environmentally sensitive SAW filter such as a SAW duplexer filter or a SAW filter, a first sealing is carried out between a ceramic main body and a metal case so as to protect the chip component, and then, a second sealing is carried out also between the metal case and the ceramic main body again, so that the shielding effect against external electromagnetic fields would be superior, and so that costs are reduced and so that a workability improvement can be realized, and so that the sealing can be made more secure. The first sealing is carried out on a step that is formed on the top of the ceramic main body to bond the metal case thereupon. The second sealing is carried out on the top of the ceramic main body to bond the metal case on the ceramic main body.