Title:
COIL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2024/047926
Kind Code:
A1
Abstract:
[Problem] To enhance insulation between a conductor post, and a terminal electrode and a magnetic element body in a coil component in which a coil pattern and the conductor post are embedded in the magnetic element body. [Solution] A coil component 1 comprising: a magnetic element body M having a mounting surface 4; a coil pattern 130 embedded in the magnetic element body M; a conductor post P1, which is embedded in the magnetic element body M, and one end of which is connected to the coil pattern 130; a post protection film 15 provided between the conductor post P1 and the magnetic element body M; a cover insulation film 21 that covers the mounting surface 4 of the magnetic element body M; and a terminal electrode E1 provided on the cover insulation film 21 and connected to the other end of the conductor post P1 though an opening 21a in the cover insulation film 21. The post protection film 15 comprises an insulation material that is different from the cover insulation film 21.
Inventors:
YOSHIKAWA KAZUHIRO (JP)
FUJII NAOAKI (JP)
TAKAHASHI NOBUYA (JP)
SATO HIRONORI (JP)
KAWAGUCHI YUUICHI (JP)
FUJII NAOAKI (JP)
TAKAHASHI NOBUYA (JP)
SATO HIRONORI (JP)
KAWAGUCHI YUUICHI (JP)
Application Number:
PCT/JP2023/015315
Publication Date:
March 07, 2024
Filing Date:
April 17, 2023
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H01F27/29; H01F17/00; H01F17/04; H01F27/02; H01F27/32
Foreign References:
| JP2021057482A | 2021-04-08 | |||
| JP2018160611A | 2018-10-11 | |||
| JP2020077839A | 2020-05-21 |
Attorney, Agent or Firm:
WASHIZU Mitsuhiro et al. (JP)
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