Patent ID: 6493082
Filing Date: 2002-12-10
Classification: G03F,G06T,H01J,H01L

Abstract:
An Inspection apparatus for a circuit pattern, comprising;an irradiating apparatus which is constructed by a plurality of lenses and irradiates light, a laser bean, or a charged particle beam onto a surface of a substrate on which a circuit pattern has been formed; a detector for detecting a signal which is generated from said substrate; a memory for storing the signal detected by said detector and visualized as an image; a comparing apparatus for comparing said stored signal with a signal obtained by visualizing a corresponding comparison pattern in another region as an image; a discriminating apparatus for discriminating a defect on said circuit pattern from a result of comparison in said comparing apparatus; a monitor; and a processor programmed to selectively display on a region of said monitor an inspecting condition picture plane for displaying or inputting inspecting conditions including a sampling rate setting region which indicates an area rate of a region irradiated by said light, said laser beam, or said charged particle beam.