Title:
COIL COMPONENT AND MANUFACTURING METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2019192748
Kind Code:
A
Abstract:
To provide a coil component using a magnetic element assembly containing magnetic powder, capable of preventing wraparound of a solder during the mounting.SOLUTION: A coil component comprises: a magnetic element assembly 10 containing a magnetic powder; a coil conductor embedded in the magnetic element assembly 10; and outer terminals E1 and E2 exposing to a first surface S1 of the magnetic element assembly 10 while being connected to the coil conductor. The magnetic element assembly 10 further includes a second surface S2 to which the outer terminals E1 and E2 are not exposed, and a surface roughness of the first surface S1 is larger than that of the second surface S2. According to the present invention, since the surface roughness of the first surface S1 of the magnetic element assembly 10 is larger, a creepage distance of the first surface S1 becomes large. Thus, wraparound of a solder during the mounting along the first surface S1 is prevented, and so an unintended part of the magnetic element assembly 10 is not covered with the solder.SELECTED DRAWING: Figure 1
Inventors:
KAWAGUCHI YUICHI
SUZUKI MASANORI
FUJII NAOAKI
NISHIKAWA TOMONAGA
SUZUKI MASANORI
FUJII NAOAKI
NISHIKAWA TOMONAGA
Application Number:
JP2018082868A
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
TDK CORP
International Classes:
H01F17/04; H01F17/00; H01F27/29; H01F41/04
Domestic Patent References:
| JP2016018885A | 2016-02-01 | |||
| JP2017076735A | 2017-04-20 | |||
| JP2006108383A | 2006-04-20 |
Foreign References:
| WO2015115180A1 | 2015-08-06 | |||
| WO2016013643A1 | 2016-01-28 |
Attorney, Agent or Firm:
Mitsuhiro Washito
Ogata Japanese
Yasuyuki Kurose
Ogata Japanese
Yasuyuki Kurose