Patent ID: 8024674
Filing Date: 2011-09-20
Classification: G06F

Abstract:
1. A semiconductor circuit design method using a simulator on a computer, simulating behaviors of a plurality of transistors with simulation parameters, and generating circuit characteristics of a semiconductor circuit including the plurality of transistors, the computer executing: converting component parameters extracted from dimensions of design patterns of components of the plurality of transistors configuring the semiconductor circuit or in-design physical characteristics of the transistors into simulation parameters inputted to the simulator; organizing the plurality of transistors included in the semiconductor circuit into a plurality of groups; selecting a selection group from the plurality of groups; setting fixed parameter values as the component parameters of the non-selected groups other than the selection group in the plurality of groups; setting combinations of the component parameters in the selection group; executing the simulation through the converting the component parameters; acquiring circuit characteristics with respect to each of the combination of the component parameters; selecting a group as a next selection group different from the selected groups; repeatedly executing the setting the fixed parameter values through the selecting a group as a next selection group different; obtaining a first mapping relation representing a relation between the plurality of circuit characteristics of the semiconductor circuit and the component parameters on the basis of results of the plurality of simulations executed based on the plural combinations of the component parameters; calculating values of the circuit characteristics corresponding to plurality of component parameters by use of the first mapping relation; selecting a part of the values of the plurality of circuit characteristics on the basis of at least any one of the values of the circuit characteristics and restriction items containing the component parameters; and obtaining component parameters corresponding to the selected values of the circuit characteristics, design patterns corresponding to the component parameters, or in-design physical characteristics of the transistors corresponding to the component parameters.