Patent ID: 9342880
Filing Date: 2016-05-17
CPC Classification: G06T

Claim Text:
1. A defect analyzing apparatus of analyzing a defect of a substrate, the defect analyzing apparatus comprising: an imaging unit configured to image target substrates; a defect feature value extracting unit configured to extract a defect feature value in a surface of the substrate based on the substrate image; a defect feature value accumulating unit configured to calculate an accumulated defect feature value with respect to the substrates; a defect determination unit configured to determine whether the accumulated defect feature value exceeds a preset critical value; and an output display unit configured to output a determination result from the defect determination unit, wherein the defect feature value is at least any one of a defect height or a defect width, and the defect feature value accumulating unit is configured to update an accumulation data including at least any one of a total defect height or a total defect width, by accumulating at least any one of the defect height or the defect width of the substrate into at least any one of the total defect height or the total defect width with respect to each of the same coordinates on the substrates.