Patent ID: 7884322
Filing Date: 2011-02-08
Classification: G06T,H01J

Abstract:
1. A scanning electron microscope comprising: a reference image storage unit for storing a reference image in which a reference pattern having an edge part is included; an inspected image pick-up unit for picking up, on the basis of the reference image, an inspected image in which an inspection pattern which matches with said reference pattern is included, wherein the inspected image pick-up unit carries out a pattern matching between the inspected image and the reference image; a critical dimension measuring unit for measuring critical dimensions of said inspection pattern by using said inspected image; a non-inspection area set-up unit which sets a non-inspection area including an edge part of a pattern in the inspected image and the reference image on which the pattern matching has been carried out; and a defect inspection unit for performing an inspection of a defect inside or outside said inspection pattern except the non-inspection area by comparing said reference image with said inspected image.