Patent ID: 7304320
Filing Date: 2007-12-04
Classification: B82Y,H01J

Abstract:
1. A charged beam exposure apparatus comprising: a first shaping aperture provided with a plurality of rectangular openings which are different from each other in at least one of area and shape thereof; a second shaping aperture provided with a pattern having a shape corresponding to that of a pattern to be drawn onto a substrate; a charged beam generator which generates a charged beam to apply the charged beam to the first shaping aperture; a projector which projects the charged beam that has passed through an arbitrary opening of the first shaping aperture onto the second shaping aperture; a deflection unit provided between the charged beam generator and the projector to deflect the charged beam; a deflection controller which controls the deflection unit so that the opening of the first shaping aperture is selected which enables adjustments of a drawing time and a resolution conforming to requirements/specifications of the pattern to be drawn; and a demagnification projector which projects the charged beam that has passed through the second shaping aperture onto the substrate in a demagnification form.