| abstract |
A surface metal film material including, in this order, a substrate, a polymer layer that receives a plating catalyst or a precursor thereof, and a metal film formed by plating, wherein, when x µm represents surface roughness (Ra) at an interface between the substrate and the polymer layer, and y µm represents surface roughness (Ra) at an interface between the polymer layer and the metal film, x > y and 5 µm > x > 0.1 µm. |