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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.

Patent No.:

US 9881726 B1

PDFFull Text
Date of Patent:
Jan. 30, 2018

Filed:

Feb. 05, 2014

Method for manufacturing magnetic substrate and common mode filter

Applicant:

Samsung Electro-mechanics Co., Ltd., Suwon, Gyunggi-do, KR;

Inventors:

Sung Kwon Wi, Seoul, KR;

Jeong Bok Kwak, Suwon-si, KR;

Sang Moon Lee, Seoul, KR;

Young Seuck Yoo, Seoul, KR;

Yong Suk Kim, Yongin-si, KR;

Assignee:

SAMSUNG ELECTRO-MECHANIS CO., LTD., Suwon-si, Gyeonggi-do, KR;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Mangtin Lian

Assistant Examiner:

Kazi Hossain

Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01F 27/28 (2006.01); H01F 27/24 (2006.01); H01F 27/02 (2006.01); H01F 17/00 (2006.01); H01F 27/34 (2006.01); H01F 19/00 (2006.01); H01F 41/04 (2006.01); H05K 1/02 (2006.01); H05K 1/16 (2006.01); H05K 3/46 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2804 (2013.01); H01F 17/0013 (2013.01); H01F 27/288 (2013.01); H01F 27/343 (2013.01); H01F 19/00 (2013.01); H01F 27/24 (2013.01); H01F 27/28 (2013.01); H01F 41/042 (2013.01); H01F 2017/008 (2013.01); H01F 2017/0066 (2013.01); H01F 2017/0093 (2013.01); H05K 1/0233 (2013.01); H05K 1/165 (2013.01); H05K 3/4629 (2013.01); Y10T 29/4902 (2015.01); Y10T 29/49002 (2015.01); Y10T 29/49208 (2015.01); Y10T 29/49211 (2015.01); Y10T 29/49936 (2015.01);
Abstract

A common mode filter is manufactured to include a coil part including an insulation layer and a conductor pattern formed in the insulation layer; and a magnetic substrate coupled to one surface or both surfaces of the coil part. The magnetic substrate includes: an electrostatic absorbing layer made of an electrostatic absorbing material; a magnetic layer provided on one surface or both surfaces of the electrostatic absorbing layer and made of a magnetic material; and an electrode provided between the magnetic layer and the electrostatic absorbing layer and made of a conductive material. Therefore, common mode filter may maintain high efficiency characteristics while preventing an electrostatic discharge phenomenon.

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