Patent ID: 9576100
Date: 2017-02-21
CPC Classifications: G03F,G06F

Claim:
1. A pattern verification method comprising: with use of a computer, extracting, from a waveform of an optical image calculated using mask pattern data of a mask pattern, at least one of a maximum value and a minimum value, the maximum value being a vertex value of a single waveform (wave shape), the minimum value being a bottom value of the single waveform, the optical image being an optical image at a predetermined resist height when a resist on a substrate is exposed using a mask with the mask pattern; and when a resist pattern is formed using the mask pattern, determining whether the resist pattern becomes pattern failure, based on at least one of a first result of comparison and a second result of comparison, the first result of comparison being a comparison between the maximum value and a first threshold value, the second result of comparison being a comparison between the minimum value and a second threshold value.