<p>An aromatic polyimide film directly laminated with a metal foil and an aromatic polyimide film directly laminated on both sides with a metal foil are disclosed. The polyimide film (substrate) comprises an aromatic polyimide layer-A of 6 - 200 mu m thick whose polyimide is derived from a biphenyltetracarboxylic acid or its derivative and a phenylenediamine and an aromatic polyimide layer-B of 0.2 - 15 mu m thick whose polyimide is derived from an aromatic tetracarboxylic acid or its derivative and an aromatic diamine having plural benzene rings, and the polyimide layer-A has a thickness of not less than 55 % of the total thickness of the aromatic polyimide substrate film. The polyimide layer-B is fixed to the polyimide layer-A under the condition that the layer-B cannot be peeled from the layer-A along the interface between these layers-A and -B. The metal foil is directly fixed on the surface of the polyimide layer-B via no adhesive.</p>
