Patent ID: 7991217
Filing Date: 2011-08-02
Classification: G06K,G06T

Abstract:
1. A defect reviewing apparatus comprising: a scanning electron microscope; defect image extracting means for extracting an image of a defect from an image which is acquired by imaging a sample by employing said scanning electron microscope; classifier means made by connecting a rule-based classifier to an example-based classifier, said rule-based classifier classifying the image of the defect extracted by said defect image extracting means based upon a preset rule, and said example-based classifier classifying the defect extracted by said defect image extracting means based upon exemplified classification information; exemplifying means for exemplifying said classification information with respect to said example-based classifier of said classifier means; defect attribute information calculating means for calculating attribute information of the defect which is classified based upon said classification information exemplified by said exemplifying means; connection status correcting means for correcting a status of connection of said rule-based classifier and said example-based classifier based upon a result obtained by making said attribute information of the defect calculated by said defect attribute information calculating means compare with a result classified based upon the rule preset to said rule-based classifier; and output means for outputting the result classified by said classifier means, the connection status of which is corrected by said connection status correcting means.