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:
Nov. 14, 2017
Filed:
Jun. 02, 2016
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyot-Fu, JP;
Abstract
A multilayer ceramic capacitor that includes an internal electrode containing at least one kind of metal A selected from the group consisting of In, Ga, Zn, Bi, and Pb and dissolved in Ni to form a solid solution. The internal electrode has a ratio of A of 1.4 atomic percent or more to a total amount of A and Ni in a near-interface region located to a depth of 2 nm from a surface of the internal electrode facing a corresponding ceramic dielectric layer. A relation between a value X of atomic percent representing the ratio of A in the near-interface region and a value Y of atomic percent representing the ratio of A in a central region in a thickness direction of the internal electrode is X−Y≧1.0. Such a multilayer capacitor is formed by annealing a ceramic stack under a predetermined condition to increase the ratio of metal A in the near-interface region of the internal electrode.