Patent ID: 6992290

Claim:
An electron beam inspection system comprising: an electron irradiation gun for irradiating a primary electron beam to a surface of a sample; stage for supporting and moving the sample in a direction; a secondary optical system for magnifying and projecting secondary electrons generated from the sample by irradiating the primary electron beam to form an image of the surface of the sample; a TDI (Time Delay Integration)-CCD (Charged Coupled Device) for detecting the secondary electrons and integrating electric charges converted from the detected secondary electrons in a surface array direction of the TDI-CCD; and a magnetic lens for rotating an image formed by the secondary electrons passing the magnetic lens such that a scanning direction of the sample as scanned by moving the stage coincides with an integration direction for integrating the electric charges in the surface array direction of the TDI-CCD by controlling the intensity of magnetic field which is produced by the magnetic lens and applied to the secondary electrons.