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:
Mar. 17, 2020

Filed:

Sep. 10, 2018
Applicant:

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

Inventors:

Norihiro Arai, Tokyo, JP;

Katsuo Sakatsume, Tokyo, JP;

Takeshi Nosaki, Tokyo, JP;

Masumi Ishii, Tokyo, JP;

Joji Ariga, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/12 (2006.01); H01G 4/30 (2006.01); H01G 4/232 (2006.01); H01G 4/008 (2006.01); C04B 35/486 (2006.01); C04B 35/465 (2006.01); C04B 35/49 (2006.01); H01G 4/248 (2006.01);
U.S. Cl.
CPC ...
H01G 4/1209 (2013.01); C04B 35/465 (2013.01); C04B 35/486 (2013.01); C04B 35/49 (2013.01); H01G 4/008 (2013.01); H01G 4/1227 (2013.01); H01G 4/1236 (2013.01); H01G 4/1245 (2013.01); H01G 4/232 (2013.01); H01G 4/30 (2013.01); C04B 2235/3203 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/3409 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/768 (2013.01); H01G 4/248 (2013.01);
Abstract

A multi-layer ceramic capacitor includes: a ceramic body that includes a plurality of ceramic layers laminated in one axial direction and includes polycrystal having a Perovskite structure as a main phase, the Perovskite structure containing calcium and zirconium and being expressed by a general expression ABO, the polycrystal containing silicon, boron, and lithium; first and second internal electrodes alternately disposed between the ceramic layers; a first external electrode provided on an outer surface of the ceramic body and connected to the first internal electrodes; and a second external electrode provided on the outer surface of the ceramic body and connected to the second internal electrodes, the multi-layer ceramic capacitor satisfying 0.2858V+0.4371≤C≤0.1306V+3.0391, where V (mm) represents a volume of the ceramic body, and C(atm %) represents a concentration of the lithium when a concentration of a B-site element of the main phase of the polycrystal is 100 atm %.


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