Radiant energy – Irradiation of objects or material – Irradiation of semiconductor devices
Reexamination Certificate
2005-03-22
2005-03-22
Lee, John R. (Department: 2881)
Radiant energy
Irradiation of objects or material
Irradiation of semiconductor devices
C250S491100, C250S492200, C250S492240, C250S492300, C250S492100, C250S397000, C250S398000, C250S3960ML, C250S3960ML, C430S296000
Reexamination Certificate
active
06870171
ABSTRACT:
An electron beam exposure apparatus which exposes a wafer (118) by using a plurality of electron beams corrects the positional error of the electron beams by using multi-deflector arrays (105, 106) capable of independently deflecting the positions of the electron beams, and pattern data to be projected onto the wafer (118). More specifically, when each of the electron beams is deflected to a predetermined exposure position on the basis of the pattern data, a static positional error independent of the deflection position is corrected by the multi-deflector arrays (105, 106), and a dynamic positional error depending on the deflection position is corrected on the basis of the pattern data.
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Hosoda Masaki
Muraki Masato
Ohta Hiroya
Yoda Haruo
Hitachi High-Technologies Corporation
Lee John R.
Souw Bernard E.
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