Title:
ELECTROMAGNETIC WAVE SHIELD-USE METAL FOIL, ELECTROMAGNETIC WAVE SHIELD MATERIAL AND SHIELD CABLE
Document Type and Number:
WIPO Patent Application WO/2015/001817
Kind Code:
A1
Abstract:
Provided are an electromagnetic wave shield-use metal foil, electromagnetic wave shield material, and a shield cable which are superior in resistance to corrosion, and which are of low cost. [Problem] On one surface or both surfaces of a substrate comprising a metal foil (1), a Sn-Ni alloy layer (2) is formed, and an oxide (3) is formed on the surface of the Sn-Ni alloy layer, wherein the Sn-Ni alloy layer includes Sn in 20 to 80% by weight, and is of a thickness of 30 to 500 nm. Depth-direction analysis is performed using XPS with the depth from the outermost surface as Xnm When the atom concentration (in %) of the Sn is ASn(X), the atom concentration (in %) of the Ni is ANi(X), the atom concentration (in %) of oxygen is AO(X), and X when AO(X) = 0 is X0, 30 nm ≥ X0 ≥ 0.5 nm is satisfied, and in the interval [0, X0], 0.4 ≥ ∫ ANi(X) dx/∫ ASn(X) dx ≥ 0.05 is satisfied.
Inventors:
TANAKA KOICHIRO (JP)
Application Number:
PCT/JP2014/053976
Publication Date:
January 08, 2015
Filing Date:
February 20, 2014
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP (JP)
International Classes:
H05K9/00; B32B9/00; C22C13/00; C22C19/03; C23C8/12; C23C14/06; C23C28/00; H01B7/17; C25D5/12; C25D5/50
Domestic Patent References:
| WO2009144973A1 | 2009-12-03 | |||
| WO2011040280A1 | 2011-04-07 | |||
| WO2009144973A1 | 2009-12-03 |
Foreign References:
| JP2005281794A | 2005-10-13 | |||
| JP2008274417A | 2008-11-13 | |||
| JP2013007092A | 2013-01-10 |
Other References:
See also references of EP 3018986A4
Attorney, Agent or Firm:
AKAO Kenichiro et al. (JP)
Ken-ichiro Akao (JP)
Ken-ichiro Akao (JP)
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