Patent ID: 6759655
Filing Date: 2004-07-06
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 beam, 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 temporarily 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 monitor for displaying a defect on said circuit pattern from a result in said comparing apparatus; an input device for designating a size of a pixel for use in displaying an image of said defect on said monitor in accordance with the width of said circuit pattern; and a processor responsive to said input device to set the size of a pixel at the detection of said signal in accordance with an input from said input device.