Title:
INDUCTOR BUILT INTO SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2018/147398
Kind Code:
A1
Abstract:
This inductor built into a substrate is provided with: a multilayer substrate (1) that has a plurality of core insertion holes (2 and 3) and comprises a laminate of a plurality of insulating layers (4), with coil patterns (5) being disposed around at least one core insertion hole (2 or 3); and a core (7) that consists of at least a first magnetic body (7a) and a second magnetic body (7b) and forms a closed magnetic path that sandwiches the multilayer substrate (1) via a core insertion hole (2 or 3). The first magnetic body (7a) and the second magnetic body (7b) face each other with a predetermined gap (9a) therebetween, and the shortest spatial distance between the gap (9a) and the coil patterns (5) is equal to or greater than a predetermined value.
Inventors:
AZUMA TAKESHI
YASUJIMA SHUHEI
AKASHI HIROKI
ISHII TAKUYA
YASUJIMA SHUHEI
AKASHI HIROKI
ISHII TAKUYA
Application Number:
PCT/JP2018/004507
Publication Date:
August 16, 2018
Filing Date:
February 09, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01F27/24; H01F17/00; H01F17/04
Foreign References:
| JP2013175657A | 2013-09-05 | |||
| JP2005228758A | 2005-08-25 | |||
| JPS5642974Y | ||||
| JPH0520310U | 1993-03-12 | |||
| JP2013175654A | 2013-09-05 | |||
| JPH0855723A | 1996-02-27 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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