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Patent Searching and Data


Title:
MAGNETIC METAL SUBSTRATE AND INDUCTANCE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/031680
Kind Code:
A1
Abstract:
An inductance element (4) is provided with a magnetic metallic substrate (2), a first gap layer (24) arranged on the surface of the magnetic metallic substrate (2), and a first magnetic-flux-generating layer (26) arranged on the first gap layer (24). The magnetic metallic substrate is provided with a metallic substrate (10) having a first magnetic permeability, a first insulating layer (16a) arranged inside the metallic substrate (10), and a first metallic-wiring layer (22) arranged on the first insulating layer (16a) and having a second magnetic permeability. Provided are: the magnetic metallic substrate, which is thin, capable of handling a large electric current, and exceptional in high-frequency characteristics; and the inductance element, in which the magnetic metallic substrate is applied, the inductance element being thin, capable of forming a small mounting area, high in inductance value, capable of handling a large electric current, and exceptional in high-frequency characteristics.

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Inventors:
TSURUMI NAOAKI (JP)
FUKAE KEISUKE (JP)
Application Number:
JP2012/071427
Publication Date:
March 07, 2013
Filing Date:
August 24, 2012
Export Citation:
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Assignee:
ROHM CO LTD (JP)
TSURUMI NAOAKI (JP)
FUKAE KEISUKE (JP)
International Classes:
H01F17/00; H01F5/00; H01F17/04; H05K1/05
Foreign References:
JP2010114302A2010-05-20
JP2004014837A2004-01-15
JP2009049335A2009-03-05
JPH0935937A1997-02-07
JP2004172396A2004-06-17
JP2007214424A2007-08-23
JPH09139313A1997-05-27
JPH0888119A1996-04-02
Other References:
See also references of EP 2750148A4
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
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Claims: