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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 9672963 B1

PDFFull Text
Date of Patent:
Jun. 06, 2017

Filed:

Jun. 16, 2014

Ceramic electronic component and method of manufacturing the same

Applicant:

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

Inventors:

Kenichi Hamanaka, Nagaokakyo, JP;

Kota Zenzai, Nagaokakyo, JP;

Taku Dekura, Nagaokakyo, JP;

Kiyotaka Maegawa, Nagaokakyo, JP;

Assignee:

MURATA MANUFACTURING CO., LTD., Kyoto, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Thomas Dougherty

Int. Cl.
CPC ...
H01L 41/047 (2006.01); H01L 41/083 (2006.01); H01C 7/00 (2006.01); H01G 4/30 (2006.01); H01F 27/29 (2006.01); H01L 41/293 (2013.01); H01C 1/148 (2006.01); H01C 7/18 (2006.01); H01G 4/232 (2006.01); H01G 4/12 (2006.01); H01F 17/00 (2006.01); H01F 41/04 (2006.01);
U.S. Cl.
CPC ...
H01C 7/008 (2013.01); H01C 1/148 (2013.01); H01C 7/18 (2013.01); H01F 27/292 (2013.01); H01G 4/232 (2013.01); H01G 4/2325 (2013.01); H01G 4/30 (2013.01); H01L 41/0472 (2013.01); H01L 41/0477 (2013.01); H01L 41/293 (2013.01); H01F 17/0013 (2013.01); H01F 41/046 (2013.01); H01G 4/12 (2013.01); Y10T 29/42 (2015.01); Y10T 29/43 (2015.01); Y10T 29/4902 (2015.01); Y10T 29/49085 (2015.01);
Abstract

A ceramic electronic component includes a rectangular or substantially rectangular parallelepiped shaped laminate in which a ceramic layer and an internal electrode are alternately laminated and an external electrode provided on a portion of a surface of the laminate and electrically connected to the internal electrode. The external electrode includes an inner external electrode covering a portion of the surface of the laminate and including a mixture of a resin component and a metal component and an outer external electrode covering the inner external electrode and including a metal component. The inner external electrode includes, as a metal component, a first metal component of which a portion forms an alloy with the internal electrode so as to connect the internal electrode and the inner external electrode to each other, and a second metal component higher in melting point than the first metal component, of which a portion forms an alloy with the first metal component so as to connect the inner external electrode and the outer external electrode to each other. A concentration of a metal in a surface layer of the inner external electrode is not lower than about 17%.

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