| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface-treated copper film, a laminate sheet, a printed wiring board and a printed circuit board having good suppressed transmission loss even when used in a high frequency circuit base board.SOLUTION: There is provided a surface-treated copper film having a surface-treated layer and being in an area surrounded by 4 linear lines of x=0, y=0, y=-0.000189x+1.400000 and y=-0.002333x+9.333333 in the coating weight-surface roughness graph drawn with x axis as the total coating weight (μg/dm) of Co, Ni, Fe and Mo in the surface-treated layer and y axis as the surface roughness of the surface-treated layer Rz(μm). |
