SEMICONDUCTOR INTEGRATED CIRCUIT DESIGN EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide design equipment for a master slice type semiconductor integrated circuit which enables effective automatic wiring by arranging circuit elements, in which irregularity of characteristic of resistance elements is restrained. SOLUTION: As a means of assigning circuit elements to base elements on a master slice, element constitution priority assignment (S302) which tries assignment on the basis of a given element constitution method and automatic element selection assignment (S304) which tries assignment to the base elements, wherein the wiring length is shorter than the connection relation between circuit elements are installed. The respective assignment results are evaluated (S305), and assignment whose evaluation value becomes higher is adopted. Until assignment for all circuit elements is finished, processes S302-S307 up to S308 are repeated.