Patent ID: 6799130
Filing Date: 2004-09-28
Classification: G01N

Abstract:
An inspection apparatus comprising:an image acquiring unit which inspects an object to be inspected on which a wiring pattern is formed so as to acquire an image including a defect of the object to be inspected; an image storage unit which stores an image including the defect acquired by the image acquiring unit; an inspection processing operation unit which detects at least a defect from the image including the defect stored in the image storage unit so as to extract inspection data including information about a position and a size of each detected defect; a storage unit which inputs data of a circuit layout pattern of the object to be inspected, and creates circuit layout pattern information of various LSI function blocks which constitute a chip about the wiring pattern of the object to be inspected and pattern density data being indicated by a line width and a space width of the wiring pattern in each of various LSI function blocks so as to store the circuit layout pattern information and the pattern density data; and a judging unit which judges criticality of each detected defect by setting label attachment to said detected defect according to correlation of the size of each detected defect with the line width and the space width of the wiring pattern in each LSI function block, and calculates a number of defects belonging to the same label in each LSI function block so that a priority order of review can be selected.