Patent ID: 7767982

Claim:
A system for inspecting a specimen, the system comprising: an illumination system including an illumination source for providing an illumination flux; a light pattern plate associated with a pattern; an optical system for guiding the illumination flux and projecting the pattern onto a surface of a specimen; a detection system for detecting the illumination flux reflected from the surface of the specimen; a stage system for receiving a first control signal and in response to at least the first control signal moving the specimen in one or more of a first dimension, a second dimension, and a third dimension, the first dimension and the second dimension forming a plane, the third dimension being perpendicular to the plane; an image processing system for generating one or more images based on at least information associated with the detected illumination flux, each of the one or more images including a first image part for the pattern and a second image part for the specimen; a focus processing system for receiving information associated with the one or more images from the image processing system, sending at least the first control signal to the stage system, and generating at least a second control signal; and an electron-beam inspection system for receiving at least the second control signal and in response to at least the second control signal performing one or more inspections for the specimen at one or more locations.