lambda, an integrated master-slice LSI CAD system

Abstract Since 100% routing is essential for master-slice LSI layout design, it is urgently required to establish an integrated CAD system, which significantly reduces the design time. It is almost impossible for even sophisticated automatic programs to accomplish 100% routing without using any man-machine interaction. The lambda system has been developed to achieve complete net connectivity in as short a design time as possible, where efficient automatic procedures are implemented as well as highly interactive functions. The automatic and interactive functions are completely integrated in the system by exploiting human intelligence and the computer's high speed processing.