| 摘要 |
An electron beam exposure apparatus for projecting an image formed by electron beams onto a wafer via a reduction electron optical system, irradiates collimated electron beams toward an aperture board having an arcuated aperture sandwiched between two arcs having, as the center, the axis of the reduction electron optical system, and exposes the wafer with electron beams having an arcuated sectional shape that have been transmitted through the aperture.
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