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Patent Searching and Data


Title:
MULTILAYER CHIP COIL
Document Type and Number:
WIPO Patent Application WO/2015/016079
Kind Code:
A1
Abstract:
The purpose of this invention is to provide a high-Q multilayer chip coil containing linear conductors, the length of each of which is equal to half the circumference of a ring-shaped path when viewed along the layering direction. Said multilayer chip coil (1) comprises a multilayer body (20), a coil (30) comprising linear conductors (32a through 32e) and via conductors (34a through 34d), and external electrodes (40a, 40b). The coil (30) forms the abovementioned ring-shaped path when viewed along the layering direction. The linear conductors include a linear conductor (32a) that contacts one of the external electrodes (40b) and linear conductors (32b through 32d), the length of each of which is equal to half the circumference of the ring-shaped path, that each form part of said ring-shaped path when viewed along the layering direction. Part of the former linear conductor (32a) is a coil section (36a) that forms part of the ring-shaped path when viewed along the layering direction. One end of the next linear conductor (32b) is connected to the aforementioned linear conductor (32a) by a via conductor (34a), and the other end does not overlap said linear conductor (32a) when viewed along the layering direction.

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Inventors:
YAMAUCHI Kouji (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
ODAHARA Mitsuru (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2014/069069
Publication Date:
February 05, 2015
Filing Date:
July 17, 2014
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H01F17/00; H01F27/28
Foreign References:
JPS5896717A1983-06-08
JPS5922303A1984-02-04
JPH11260644A1999-09-24
JP2008053368A2008-03-06
JP2005045103A2005-02-17
Attorney, Agent or Firm:
PROFIC PC (Iyo Building, 2-21 Minamihommachi 4-chome, Chuo-ku, Osaka-sh, Osaka 54, 〒5410054, JP)
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