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:
Jan. 14, 2025

Filed:

Feb. 08, 2022
Applicant:

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

Inventor:

Yasutomo Suga, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/20 (2006.01); H01G 4/232 (2006.01); H01G 4/248 (2006.01); H01G 4/30 (2006.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
H01G 4/2325 (2013.01); H01G 4/248 (2013.01); H01G 4/30 (2013.01); H05K 1/181 (2013.01); H05K 2201/10015 (2013.01); H05K 2201/10234 (2013.01); H05K 2201/10636 (2013.01); H05K 2201/10977 (2013.01);
Abstract

A ceramic electronic component includes an element body having a dielectric and internal electrodes, the element body having an upper surface, a lower surface, and side surfaces; external electrodes formed on multiple surfaces of the element body, and an oxide layer formed on the upper surface of the element body. Each of the external electrodes has a base layer and a plating layer, the base layer containing metal and having a lower part formed on the lower surface of the element body and a side part formed on one of the side surfaces of the element body and being connected to one or more of the internal electrodes, the plating layers being formed on the lower part of the corresponding base layer. The oxide layer has a surface roughness Ra that is equal to or greater than 0.20 micrometers.


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