Patent ID: 7074493

Claim:
An insulated integrated circuit comprising: an integrated circuit; and an insulating layer having a dielectric constant of less than about 2.5 is disposed on said integrated circuit, wherein said insulating layer is a polyimide film that is the polymerization product of an aromatic diamine having the general formula (I): and an aromatic dianhydride having the formula (II): wherein R is an organic substituent selected from the group consisting of CF 3 , o-trifluoromethyl phenyl, m-trifluoromethyl phenyl, p-trifluoromethyl phenyl and 3,5 bis[(m-trifluoromethyl) phenyl]; or the polymerization product of an aromatic dianhydride having the general formula (III): and an aromatic diamine having the formula (IV): wherein R is a substituent selected from the group consisting of trifluoromethyl, o-trifluoromethyl phenyl, m-trifluoromethyl phenyl, p-trifluoromethyl phenyl and 3,5â€²-bis[(m-trifluoromethyl) phenyl].