Patent ID: 7779373

Claim:
A position-dependent variation amount computation method used when a characteristic parameter or a shape parameter of each element constituting a design target semiconductor integrated circuit is estimated using computer wherein the method comprises: a position topology calculation step for calculating a position topology of an element to be calculated; and a position topology dependent variation calculation step for calculating, based on the position topology, a position-dependent variation amount of the element, wherein on-wafer or on-chip layout position information for the element of the semiconductor integrated circuit is received and then, based on the layout position information for the element, a position-dependent variation amount variable depending on an arrangement position of the element is calculated to estimate the characteristic parameter or the shape parameter of the element, wherein a simulation for the semiconductor integrated circuit is performed by using a computer and using the position-dependent variation amount of the element of the semiconductor integrated circuit calculated according to the position-dependent variation amount computation method, wherein in the position topology calculation step, the position topology is calculated using a position topology calculation equation set, based on fabrication process information for the semiconductor integrated circuit, and wherein the position topology calculation equation is determined according to any one of an ion injection direction, a light exposure direction, a polishing direction, a cleansing direction and a deposition direction in fabrication process.