Patent ID: 7600213

Claim:
A pattern data verification method comprising: preparing exposure data of mask pattern related to a circuit pattern to be formed on a substrate, the preparing being performed by using a computer; calculating a characteristic of an image of an exposure pattern on a resist film to be applied on the substrate, the exposure pattern corresponding to the exposure data, the calculating being performed by using the computer; calculating a film thickness of a resist pattern resulting from developing the resist film based on the characteristic of the image of the exposure pattern, the film thickness of the resist pattern being varied from a thickness of the resist film before being developed, the calculating being performed by using the computer; and determining whether the exposure data is acceptable or rejectable based on the film thickness of the resist pattern resulting from developing the resist film, wherein the exposure data is proximity effect correction applied design data related to the circuit pattern; and the calculating a characteristic of an image of an exposure pattern comprises performing a calculation based on an intensity distribution of exposure light or charged beam on the resist film corresponding to the exposure pattern obtained by light exposure simulation or charged beam exposure simulation.