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:
Feb. 23, 2021

Filed:

Nov. 01, 2018
Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventors:

Norihiro Arai, Takasaki, JP;

Takeshi Nosaki, Takasaki, JP;

Masumi Ishii, Takasaki, JP;

Jyouji Ariga, Takasaki, JP;

Hiroyuki Moteki, Takasaki, JP;

Manabu Ozawa, Takasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/232 (2006.01); H01G 4/008 (2006.01); H01G 4/12 (2006.01); H01G 4/30 (2006.01);
U.S. Cl.
CPC ...
H01G 4/2325 (2013.01); H01G 4/0085 (2013.01); H01G 4/1236 (2013.01); H01G 4/30 (2013.01);
Abstract

A multilayer ceramic capacitor includes: a ceramic multilayer structure designated to have ceramic dielectric layers and internal electrode layers alternately stacked, the internal electrode layers being mainly composed of a transition metal other than an iron group, end edges of the internal electrode layers being alternately exposed to a first end face and a second end face; and a pair of external electrodes provided on the first end face and the second end face, wherein: the external electrodes have a base conductive layer and a first plated layer; the base conductive layer directly contacts the ceramic multilayer structure; a main component of the base conductive layer is a noble metal or a transition metal other than an iron group; and a total concentration of Si and B in a second-phase not contacting the ceramic multilayer structure is 0.3 wt % or less, in the base conductive layer.


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