Patent ID: 7418363
Filing Date: 2008-08-26
Classification: G06T

Abstract:
1. A computer-readable recording medium comprising a micropattern measuring program, which is recorded on the medium, the micropattern measuring program comprising: computer readable program code which acquires an image of a micropattern including plural layers; computer readable program code which extracts a rough outline of the micropattern in the image as a sequence of points including plural points; computer readable program code which divides the plural points composing the sequence of points into groups; computer readable program code which makes each of the groups as each of patterns belong to any of the plural layers; and computer readable program code which acquires edge coordinates of a pattern to be measured from the patterns which are made to belong to the respective layers; wherein the computer readable program code which divides the plural points into groups comprises: computer readable program code which searches for points composing the rough outline in each of search directions with a representative point as a center and counts a distance from the representative point to each of detected points and the number of detected points in each of the search directions, computer readable program code which ranks sequences of points, based on the distance from the representative point to each of the points in respective searches, computer readable program code which divides the respective sequences of points as subgroups based on the number of detected points and the ranking in the respective searches, and computer readable program code which connects the subgroups to constitute one group when a distance between end points of the respective subgroups is a threshold value or less.