Patent ID: 8068662
Filing Date: 2011-11-29
Classification: G06T

Abstract:
1. A method for determining a defect during charged particle beam inspection of a sample, comprising: providing at least one charged particle microscopic image of said sample; aligning each of said images with its corresponding database graphic of said sample; locating, within each said image, at least one examination region by making reference to corresponding said database graphic, each located said examination region concerning at least one element of said sample, each concerned said element having at least one characteristic; generating, for each point in located said examination regions, at least one point response value by collectively processing at least one pixel response value from a predefined neighborhood of concerned said point by using at least one point response evaluator; and determining the presence of a defect at the location of concerned said point by applying at least one decision tree operator to generated said point response values of concerned said point.