Patent ID: 7917872

Claim:
A simulation method to be implemented in a computer, the simulation method comprising: a first converting procedure carrying out, by the computer, a weighting with respect to layout parameters of a circuit, which is an analyzing target, based on priority information of cells forming the circuit, and converting, by the computer, the weighted layout parameters into physical characteristics and storing the physical characteristics in a memory part; a second converting procedure converting, by the computer, the physical characteristic read from the memory part into circuit parameters and storing, by the computer, the circuit parameters into the memory part; and an analyzing procedure analyzing, by the computer, the circuit based on a net list that includes the circuit parameters read from the memory part, wherein the priority information is a type of the cells or a number of the cells included in the circuit, and wherein the layout parameters include shape information of the cells, the physical characteristics include a threshold voltage of transistors included in the cells or a current flowing through the transistors included in the cells, and the circuit parameters include information for changing the physical characteristics.