Patent ID: 7267883

Claim:
A laminate comprising a metal layer and a polyimide film, the metal layer being directly formed on the polyimide film having a dynamic viscoelasticity whose tan δ peak is located in a range of not less than 310° C. but not more than 410° C., and whose tan δ value at 300° C. is not more than 0.05, the polyimide film prepared by copolymerizing an acid dianhydride component and a diamine component, the acid dianhydride component including a pyromellitic dianhydride represented by Equation (1): where R 1 is a residue selected from a group consisting of H—, CH 3 —, CF 3 , Cl—, Br—, F—, and CH 3 O—, and R 1 may be the same residues or different residues, and the diamine component including a paraphenylene diamine and a diaminodiphenyl ether, the paraphenylene diamine being represented by Equation (2): where R 2 is a bivalent aromatic group selected from a group consisting of: and each R 3 in the group is independently any one of —H, —CH 3 , —OH, —CF 3 , —SO 4 , —COOH, —CO—NH 2 , —Cl, —Br, —F, and —OCH 3 , and the diaminodiphenyl ether being represented by General Formula (3): where R 4 is a bivalent organic group selected from a group consisting of: and each R 5 in the group is independently any one of —H, —CH 3 , —OH, —CF 3 , —SO 4 , —COOH, —CO—NH 2 , —Cl, —Br, —F, and —OCH 3 , wherein: the acid dianhydride component further includes a bis(trimellitic monoester anhydride) being represented by General Formula (4): where R 6 is a bivalent organic group selected from a group consisting of: and each R 7 is independently any one of —H, —CH 3 , —OH, —CF 3 , —SO 4 , —COOH, and —CO—NH 2 .