SURFACE TREATED COPPER FOIL, LAMINATE USING THE SAME, PRINTED WIRING BOARD, ELECTRONIC APPARATUS AND METHOD FOR MANUFACTURING PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To provide a surface treated copper foil excellently bonded with a resin and excellent in transparency of the resin after a copper foil is removed by etching, and a laminate using the same.SOLUTION: In an observation point-lightness graph, Sv defined by a formula (1) is 3.5 or more when a difference between a top average value Bt and a bottom average value Bb in a lightness curve is set toΔB, a value showing a position of the intersection nearest to a line-shaped mark is set to t1 out of intersections between the lightness curve and Bt, and a value showing a position of the intersection nearest to the line-shaped mark is set to t2 out of intersections between the lightness curve and 0.1ΔB in a depth range to 0.1ΔB from the intersections between the lightness curve and the Bt using the Bt as a reference. The surface treated copper foil includes any one or more kinds of elements selected from Ni and Co on the surface treated surface. Sv=(ΔB×0.1)/(t1-t2) (1)