Title:
SURFACE TREATED COPPER FOIL, SURFACE TREATED COPPER FOIL WITH VERY THIN PRIMER RESIN LAYER, METHOD FOR MANUFACTURING THE SURFACE TREATED COPPER FOIL, AND METHOD FOR MANUFACTURING THE SURFACE TREATED COPPER FOIL WITH VERY THIN PRIMER RESIN LAYER
Document Type and Number:
WIPO Patent Application WO/2008/053878
Kind Code:
A1
Abstract:
This invention provides a surface treated copper foil which, without use of chromium
in an antirust treated layer in an electrolytic copper foil, is excellent in good
properties after fabrication into a printed wiring board, for example, in peel
strength of a circuit and the percentage deterioration in chemical resistance
regarding the peel strength. In the surface treated copper foil, an antirust
treated layer and a silane coupling agent layer are provided on a face of lamination
of an electrolytic copper foil onto an insulating resin base material. The surface
treated copper foil is characterized in that the antirust treated layer comprises
a nickel alloy layer having a weight thickness of 5 mg/m2 to 50 mg/m2
and a tin layer having a weight thickness of 5 mg/m2 to 40 mg/m2
stacked in that order and a silane coupling agent layer is provided on the surface
of the antirust treated layer. Further, the present invention further provides,
for example, a surface treated copper foil with a very thin primer resin layer,
characterized in that a very thin primer resin layer having an equivalent thickness
of 1 μm to 5 μm is provided on a face of lamination of the surface treated
copper foil (not subjected to roughening treatment) on the insulating resin
base material.
Inventors:
MATSUNAGA TETSUHIRO (JP)
MATSUSHIMA TOSHIFUMI (JP)
SATO TETSURO (JP)
MATSUSHIMA TOSHIFUMI (JP)
SATO TETSURO (JP)
Application Number:
PCT/JP2007/071098
Publication Date:
May 08, 2008
Filing Date:
October 30, 2007
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO (JP)
MATSUNAGA TETSUHIRO (JP)
MATSUSHIMA TOSHIFUMI (JP)
SATO TETSURO (JP)
MATSUNAGA TETSUHIRO (JP)
MATSUSHIMA TOSHIFUMI (JP)
SATO TETSURO (JP)
International Classes:
C23C28/00; B32B15/08; C25D5/10; C25D7/06; H05K1/09
Foreign References:
| JP2004047681A | 2004-02-12 | |||
| JPH01109796A | 1989-04-26 | |||
| JP2005053218A | 2005-03-03 | |||
| JPH07170064A | 1995-07-04 | |||
| JP2004047681A | 2004-02-12 |
Other References:
EU MARKET, 1 July 2003 (2003-07-01)
See also references of EP 2100987A4
See also references of EP 2100987A4
Attorney, Agent or Firm:
YOSHIMURA, Katsuhiro (Omiya F Bldg. 5-4, Sakuragicho 2-chome,Omiya-ku, Saitama-sh, Saitama 54, JP)
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