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.

Date of Patent:
Jul. 16, 2019

Filed:

Apr. 10, 2018
Applicant:

Samsung Electro-mechanics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;

Inventors:

Jae Sung Park, Suwon-si, KR;

Jong Han Kim, Suwon-si, KR;

Jin Seong Kim, Suwon-si, KR;

Jeong Yun Park, Suwon-si, KR;

Jae Yeol Choi, Suwon-si, KR;

Sea Han Na Doo, Suwon-si, KR;

Assignee:

SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si, Gyeonggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/30 (2006.01); H01G 4/12 (2006.01); H01G 4/248 (2006.01); H01G 4/012 (2006.01);
U.S. Cl.
CPC ...
H01G 4/1209 (2013.01); H01G 4/30 (2013.01); H01G 4/012 (2013.01); H01G 4/248 (2013.01);
Abstract

A multilayer ceramic capacitor includes: a ceramic body having first and second surfaces opposing each other and third and fourth surfaces connecting the first and second surfaces to each other; a plurality of internal electrodes disposed in the ceramic body, exposed to the first and second surfaces, and each having one end exposed to the third or fourth surface; and first and second side margin portions disposed on the first and second surfaces and covering exposed surfaces of the internal electrodes. A dielectric composition contained in the first and second side margin portions is different from a dielectric composition contained in the ceramic body, the first and second side margin portions contain a barium titanate-based base material powder and magnesium (Mg), manganese (Mn), and aluminum (Al) as accessory ingredients, and a content ratio of manganese (Mn) to magnesium (Mg), manganese (Mn), and aluminum (Al) satisfies 0.316≤Mn/(Mn+Mg+Al)≤0.500, based on a molar content of Mn, Mg and Al in the first and second side margin portions.


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