Patent ID: 6362884
Filing Date: 2002-03-26
Classification: G01N,G02F

Abstract:
An apparatus for inspecting a substrate, comprising:a substrate holder that holds a substrate to be inspected; a driving mechanism that raises the substrate holder from a horizontal state to a predetermined angle; an observation unit supporting section comprising a horizontal member that extends across the substrate holder and support columns that support the horizontal member at end portions thereof, said observation unit supporting section being movable along side edges of the substrate holder when the substrate holder is in the horizontal state; a micro observation unit that is movable along the horizontal member of the observation unit supporting section intersecting a moving direction of the observation unit supporting section, said micro observation unit allowing micro observation of the substrate when the substrate is mounted on the substrate holder; and a macro illumination unit that illuminates a surface of the substrate at a predetermined angle, thereby allowing macro observation of the substrate placed on the holder.