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. 14, 2004
Filed:
Dec. 24, 2002
Young Min Kim, Kyungki-do, KR;
Jong Hee Kim, Seoul, KR;
Dong Sook Shin, Seoul, KR;
Young Tae Moon, Kyungki-do, KR;
Abstract
Disclosed is a nonreducible dielectric composition. Provided is a highly reliable TC based dielectric composition prepared by adding a sintering additive having excellent qualities to a conventional (Ca Sr ) (Zr Ti )O based dielectric composition, so that it can be sintered under a reducing atmosphere to be used in formation of a nickel electrode, can be sintered at a low temperature of less than 1,250° C., and has a small dielectric loss and a high resistivity. The composition of the present invention includes a nonreducible dielectric composition comprising a main component expressed by the general formula, (Ca Sr ) (Zr Ti )O , which has the ranges of 0≦x≦1, 0.09≦y≦0.35, and 0.7≦m≦1.05; and 0.5-10 wt % of a minor component expressed by the general formula, aMnO-bSiO -dR O-eR O (a+b+d+e=100, R is at least one element selected from the group consisting of Mg, Ca, Sr and Ba, and R is at least one element of Zr and Ti), which has the ranges of 20≦a≦60, 10≦b≦65, and 0≦(d+e)≦65.
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