| 摘要 |
A copper foil composite comprising a copper foil and a resin layer laminated thereon, wherein equation 1:(f 3 x t 3 )/(f 2 x t 2 ) => 1 is satisfied when t 2 (mm) is a thickness of the copper foil, f 2 (MPa) is a stress of the copper foil under tensile strain of 4%, t 3 (mm) is a thickness of the resin layer, f 3 (MPa) is a stress of the resin layer under tensile strain of 4%, and equation 2:1 <= 33f 1 /(F x T) is satisfied when f 1 (N/mm) is 180° peeling strength between the copper foil and the resin layer, F(MPa) is strength of the copper foil composite under tensile strain of 30%, and T (mm) is a thickness of the copper foil composite. |
