Establishes the requirements for adhesive coated dielectric film materials used in the cover sheets and flexible adhesive bonding films of fabricated flexible printed circuitry and flexible flat cable. Provides comprehensive data that will help users more easily determine both material capability and compatibility. IPC-4203 includes adhesive-coated flexible dielectric film material specification sheets which are identified by material type. Closely aligned with IPC-4202 and IPC-4204. Supersedes IPC-FC-232C with Amendment 1 included and, in turn, IPC-FC-232C, IPC-FC-232B, IPC-FC-232A, IPC-FC-232 and IPC-FC-233. 45 pages. Released May 2002.