Patent ID: 7049607
Filing Date: 2006-05-23
Classification: B82Y,H01J

Abstract:
1. Electron beam writing equipment, comprising: an electron beam source for emitting an electron beam a sample stage provided with a detection mark; first deflection means for deflecting the emitted electron beam within a deflection field at a first speed; second deflection means for deflecting the emitted electron beam in an area including the detection mark at a second speed slower than the first speed; a detector for detecting a secondary electron, a backscattered electron or a transmission electron generated by irradiating the electron beam to the detection mark; a control means for correcting a position or a deflection distance of the electron beam from the detected result of said detector; and means for moving the deflection field in an area including the detection mark, wherein a repetition of a scan by said second deflection means is synchronized with a cycle of a scan by said first deflection means.