Patent ID: 6114708
Filing Date: 2000-09-05
Classification: B82Y,H01J

Abstract:
An electron-beam exposure apparatus, comprising:(a) an electron gun for emitting an electron beam;(b) a first aperture for converting the electron beam to a prescribed shape;(c) a second aperture provided with openings for varying the cross-sectional shape of the electron beam passing through the first aperture, wherein the second aperture comprises:(i) a variable-shape opening means for defining the shape of the electron beam;(ii) at least one partial one-shot exposure opening; and(iii) a beam spot dimension correction opening means for passing the electron beam to an electron beam sensor means;(d) the electron beam sensor means for correcting dimensions of the electron beam to be passed through the variable-shape opening means based on the electron beam passed through the beam spot dimension correction opening means; and(e) a first deflector for deflecting the electron beam passing through the first aperture, provided between the first aperture and the second aperture.