Title:
LAMINATED COIL DEVICE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2014/061670
Kind Code:
A1
Abstract:
A laminated coil device includes a magnetic part (5) that includes a metallic magnetic material and a first glass component, and a non-magnetic part (6) that includes a ceramic material and a second glass component, and a coil conductor (1) is formed such that at least a main surface of the coil pattern contacts the non-magnetic part (6). The magnetic part (5) is formed such that the volume content of the first glass component in the total of the metallic magnetic material and the first glass component is 46 to 60 volume%. The non-magnetic part (6) is formed such that the volume content of the second glass component in the total of the ceramic material and the second glass component is 69 to 79 volume%. As a result, it is possible to achieve a highly reliable laminated coil device and manufacturing method therefor which can provide good high-frequency characteristics and good magnetic characteristics without impairing insulation, and can reduce the occurrence of structural defects such as cracks or peeling.
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Inventors:
MAEDA EIICHI (JP)
Application Number:
PCT/JP2013/077997
Publication Date:
April 24, 2014
Filing Date:
October 15, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01F17/00; H01F41/04
Domestic Patent References:
| WO2012005069A1 | 2012-01-12 |
Foreign References:
| JP2013033966A | 2013-02-14 | |||
| JP2013055078A | 2013-03-21 | |||
| JP2009239159A | 2009-10-15 | |||
| JP2007266245A | 2007-10-11 | |||
| JP2005317748A | 2005-11-10 | |||
| JP2006041081A | 2006-02-09 | |||
| JPH01318213A | 1989-12-22 |
Attorney, Agent or Firm:
KUNIHIRO YASUTOSHI (JP)
Kunihiro Yasutoshi (JP)
Kunihiro Yasutoshi (JP)
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