Patent ID: 6707546
Filing Date: 2004-03-16
Classification: G01N,G02F

Abstract:
An inspecting apparatus comprising:a main body; a substrate holder which is arranged horizontally above an upper surface of the main body and which holds a substrate to be inspected; a pair of guide rails arranged on the main body along respective sides of the substrate holder in an opposing manner; an observation unit supporting section comprising a pair of support columns respectively traveling along the guide rails and a horizontal arm section connecting the support columns; a micro inspection unit which is movable along the horizontal arm section in a direction perpendicular to the guide rails, and which includes an objective lens for microscopically observing a surface of the substrate to be inspected; a storage section which stores position coordinates of at least one defect on the substrate to be inspected; and a control section which controls movement of the observation unit supporting section and the micro inspection unit so that an observation optical axis of the objective lens of the micro inspection unit is adjusted to the defect on the substrate to be inspected based on the position coordinates of the defect read from the storage section.