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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.:

US 9153382 B1

PDFFull Text
Date of Patent:
Oct. 06, 2015

Filed:

Jul. 08, 2013

Multilayer ceramic capacitor and method for manufacturing multilayer ceramic capacitor

Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;

Inventors:

Takafumi Okamoto, Nagaokakyo, JP;

Noriyuki Inoue, Nagaokakyo, JP;

Assignee:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Eric Thomas

Int. Cl.
CPC ...
H01G 4/06 (2006.01); C04B 35/00 (2006.01); H01G 4/12 (2006.01); C01G 23/00 (2006.01); C01G 25/00 (2006.01); C04B 35/468 (2006.01); C04B 35/49 (2006.01); H01B 3/12 (2006.01); H01G 4/30 (2006.01);
U.S. Cl.
CPC ...
H01G 4/1209 (2013.01); C01G 23/006 (2013.01); C01G 25/006 (2013.01); C04B 35/4682 (2013.01); C04B 35/49 (2013.01); H01B 3/12 (2013.01); H01G 4/1227 (2013.01); H01G 4/30 (2013.01); C01P 2002/34 (2013.01); C01P 2002/50 (2013.01); C01P 2006/40 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3227 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/652 (2013.01); C04B 2235/6582 (2013.01); C04B 2235/6584 (2013.01); C04B 2235/6588 (2013.01);
Abstract

A multilayer ceramic capacitor exhibits superior life characteristics in a high temperature load test despite the use of very thin dielectric layers. As a dielectric ceramic constituting a dielectric layer of the multilayer ceramic capacitor, a perovskite-type compound is used and contains Ba and Ti (a portion of Ba can be replaced with at least one of Ca and Sr, and a portion of Ti can be replaced with Zr) as a main component, and including La within the range of 2-6 parts by mole, Mg within the range of 3-5 parts by mole, and Mn within the range of 1.5-3 parts by mole in a case where a total content of Ti and Zr is 100 parts by mole.

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