MAGNETIC METAL SUBSTRATE AND INDUCTANCE ELEMENT

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:

PCT/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:

JP2010114302A	2010-05-20
JP2004014837A	2004-01-15
JP2009049335A	2009-03-05
JPH0935937A	1997-02-07
JP2004172396A	2004-06-17
JP2007214424A	2007-08-23
JPH09139313A	1997-05-27
JPH0888119A	1996-04-02

Other References: