| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface-roughened aromatic polyimide film which is effectively roughened at the surface, resulting in a modified adhesion. SOLUTION: The surface-roughened aromatic polyimide film comprises a particle contained inside the film, wherein the particle has the following relations to regulate within their respective defined ranges: the relation between an average particle size a (μm) of the particle and an average roughness (Ra) of the film surface; and the relation between the average roughness (Ra) and the maximum roughness (Rmax) of the film surface. The method for producing the surface-roughened aromatic polyimide film is characterized by dispersing an abrasive agent having a specific gravity (d) of 7 or less in a liquid, which was then ejected on the surface of an aromatic polyimide film. |
