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. 25, 2025

Filed:

Mar. 23, 2021
Applicant:

Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;

Inventors:

Yong Hui Li, Suwon-si, KR;

Byung Soo Kang, Suwon-si, KR;

Ju Hwan Yang, Suwon-si, KR;

Seung Min Lee, Suwon-si, KR;

Yoon Mi Cha, Suwon-si, KR;

Boum Seock Kim, Suwon-si, KR;

Byeong Cheol Moon, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/29 (2006.01); H01F 17/00 (2006.01); H01F 27/32 (2006.01);
U.S. Cl.
CPC ...
H01F 27/292 (2013.01); H01F 17/0013 (2013.01); H01F 27/324 (2013.01); H01F 2017/002 (2013.01);
Abstract

A coil component is disposed. The coil component according to an aspect of the present disclosure includes: a body; a coil portion disposed in the body; an external electrode portion including a first metal layer disposed on the body, and connected to the coil portion; and a surface insulating layer disposed on the body to cover a first region of the first metal layer and open a second region of the first metal layer. Surface roughness of an interface of the first region of the first metal layer with the surface insulating layer is higher than surface roughness of an outer surface of the second region of the first metal layer.


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