Patent Document ID: 20060038986
Application ID: 11248697
Patent Status: 0

Claim One:
1. A method of reviewing a defect comprising: a defect image pick-up step for moving a field of view of a microscope to an inspection position on a sample based on information from an inspection tool that has detected a defect and picking up an image at said inspection position; and a defect area extraction step for extracting a defect area at said inspection position from the image of said inspection position; wherein said defect area extraction step further includes: a reference image generation step for generating a reference image based on the image of said inspection position or based on stored reference images in such a manner that a pattern in a local area in the reference image is synthesized from a plurality of local areas in the image of said inspection position that are determined to have the same pattern as in the local area in the reference image, or synthesized from a plurality of said stored reference images that are determined to have the same pattern as in the local area in the reference image; and a defect area calculation step for extraction a defect area by comparing the image of said inspection position with said reference image synthesized in said reference image generation step.