Patent ID: 8647518

Claim:
A method for manufacturing a resin coated copper foil, comprising: adding diamines of 2,2-bis[4-(4-aminophenoxy)phenyl] propane and 4,4′-oxydianiline into a polar aprotic solvent, and adding acid anhydrides of pyromellitic diandydride and oxydiphthalic anhydride into the polar aprotic solvent to form a mixture, and stirring the mixture to form a second mixed solution; heating the second mixed solution to a temperature of 170° C. to 190° C. to cause a cross-linking reaction between the diamines and the acid anhydrides, thereby forming a thermoplastic polyimide adhesive fluid; and applying the thermoplastic polyimide adhesive fluid over a copper foil, and pre-curing the thermoplastic polyimide adhesive fluid to form a thermoplastic polyimide adhesive layer over the copper foil, thereby obtaining a resin coated copper foil.