Completely automatic completion of VLSI designs

Most VLSI designs consist of a number of blocks, like RAMs, ROMs, data paths, and random logic, which ultimately must be integrated. Methods for performing this integration have generally required manual intervention, such as the iterative operation of placement programs and routing programs. Here, the term fusion is introduced to denote any automatic method which performs that integration completely. The basic inner workings of such a fusion service is described, concentrating on a place/route algorithm that accommodates blocks of unrelated sizes and pinouts and always guarantees 100% completion of wiring