SEMICONDUCTOR DEVICE AND ITS LAYOUT DESIGN METHOD AND RECORDING MEDIUM RECORDING LAYOUT DESIGN PROGRAM

摘要

PROBLEM TO BE SOLVED: To develop a semiconductor device in a short period by changing the physical configuration of a distribution plane layout that is selected from the distribution plane layout of a 1st layout corresponding to a 1st net list and generating a 2nd layout corresponding to a 2nd net list. SOLUTION: A 1st net list N1 is prepared in a process S100 and a 1st layout is generated based on the list N1 in a process S200. A 2nd net list N2 is prepared in a process S300 and (n-1) pieces or less of distribution plane layouts are selected from 1st to n-th distribution plane layouts in a process S400. Then the physical configurations (patterns) of selected (n-1) pieces or less of distribution plane layouts are changed in process S500. A 2nd layout is generated from those changed distribution plane layouts and the remaining plane layouts of the 1st layout based on the list N2 in a process S600.