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Patent Searching and Data


Title:
SURFACE-TREATED COPPER FOIL AND LAMINATE USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/073693
Kind Code:
A1
Abstract:
Provided are a surface-treated copper foil which adheres favorably to resin and achieves excellent visibility when seen through the resin, and a laminate using the same. A surface-treated copper foil having a surface treatment performed on at least one surface thereof, and having a color difference (ΔE*ab) based on JIS Z8730 of the treated surface of 40 or higher, wherein: the copper foil is laminated, from the treated-surface side, with a polyimide having a ΔB (PI) of 50 to 65, inclusive, prior to adhesion to the copper foil; and afterward, an observation point/brightness graph prepared by measuring the brightness at each observation point in a direction perpendicular to the direction in which the observed copper foil extends, in an image obtained by imaging the copper foil using a CCD camera through the polyimide, illustrates that the difference ΔB (ΔB=Bt-Bb) between the top average value (Bt) and the bottom average value (Bb) of a brightness curve produced from the end of the copper foil to a section not having the copper foil is 40 or higher.

Inventors:
ARAI,Hideta (JX Nippon Mining & Metals Corporation3-1,Shirogane-cho 3-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
MIKI,Atsushi (JX Nippon Mining & Metals Corporation3-1,Shirogane-cho 3-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
ARAI,Kohsuke (JX Nippon Mining & Metals Corporation3-1,Shirogane-cho 3-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
NAKAMURO,Kaichiro (JX Nippon Mining & Metals Corporation3,Kurami,Samukawamachi,Koza-gu, Kanagawa 01, 〒2530101, JP)
Application Number:
JP2013/080478
Publication Date:
May 15, 2014
Filing Date:
November 11, 2013
Export Citation:
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Assignee:
JX NIPPON MINING & METALS CORPORATION (6-3Otemachi 2-chome, Chiyoda-ku Tokyo, 64, 〒1008164, JP)
International Classes:
C25D1/04; B21B1/40; B21B3/00; C25D7/06; H05K1/03; H05K1/09
Foreign References:
JP2012212529A2012-11-01
JP2012211351A2012-11-01
JP2011240625A2011-12-01
JP2012224941A2012-11-15
JPH0987889A1997-03-31
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (Shimbashi i-mark Bldg, 6-2 Shimbashi 2-ChomeMinato-k, Tokyo 04, 〒1050004, JP)
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