Invention Grant
- Patent Title: Coil component
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Application No.: US15947682Application Date: 2018-04-06
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Publication No.: US10546683B2Publication Date: 2020-01-28
- Inventor: Tomonaga Nishikawa , Kouji Kawamura , Hidenori Tsutsui , Mitsuo Natori , Hitoshi Ozawa
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Young Law Firm, P.C.
- Priority: JP2017-078275 20170411
- Main IPC: H01F27/29
- IPC: H01F27/29 ; H01F5/00 ; H02M7/00

Abstract:
Disclosed herein is a coil component that includes a spiral conductor, a magnetic material layer covering the spiral conductor and having a through hole exposing an end of the spiral conductor, a through-hole conductor embedded in the through hole and has first region and second regions that are exposed from the magnetic material layer, a first conductor layer formed on an upper surface of the magnetic material layer and covering the first region of the through-hole conductor without covering the second region, and a second conductor layer covering the first conductor layer and the second region of the through-hole conductor, wherein the second conductor layer has a lower resistance than the first conductor layer.
Public/Granted literature
- US20180294090A1 COIL COMPONENT Public/Granted day:2018-10-11
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