Patent ID: 7330248

Claim:
A method for inspecting defects, comprising steps of: determining a set of inspection conditions of an optical inspection system for detecting defects on a test specimen; inspecting a specimen by using said optical inspection system under said determined set of inspection conditions; and processing signals obtained by said inspecting to detect defects of said specimen under said determined set inspection conditions of said optical inspection system, said step of determining comprising: performing test inspections for inspecting said test specimen by changing conditions of said optical inspection system including at least one of a wavelength range of light, a polarization state of light, a power level of light, or a magnification of an image detected by a detector of said optical inspection system; specifying a coordinate of a defect to be inspected; detecting an image of said defect to be inspected by using said specified coordinate data and processing said detected image o said defect to be inspected to extract a feature of said detected image; and displaying, side by side on a screen together with said extracted feature, images of said defect to be inspected, said image being obtained by said optical inspection system under said respective condition used in said step of performing test inspections.