| 摘要 |
<p>The present invention provides a roughening copper foil, a copper foil laminate, and a printed wiring board. The present invention reduces the transmission loss of an electric signal and maintains a specific peel strength even if the electric signal of a high frequency is transmitted. The present invention includes: a base material; and a plating layer having a base plating layer which is solidified on a main surface of at least one base material, and a roughening plating layer. After final annealing process, a plating layer solidifying surface is greater than 80% of total orientation ratio of a cube set which is indicated by multiplying a peak strength ratio (A), a surface external orientation ratio (B), and a surface internal orientation ratio (C). When the frequency of the electric signal is f, the thickness of the plating layer is between 0.4μm and 6.3/ (f)^1/2μm, and the score 10 average illumination (Rz) of the surface of the plating layer is between 0.6μm and 1.2μm.</p> |
