发明名称 |
Electron-beam exposure device and a method of detecting a mark position for the device |
摘要 |
An electron-beam exposure device having at least one deflector for deflecting an electron beam and detecting a position of a position-detection mark with the electron beam includes a plurality of detectors detecting electrons scattered from the position-detection mark, a plurality of amplifiers, each of the amplifiers amplifying an output of a corresponding one of the detectors, and a setting unit for setting amplification factors of the amplifiers such that a magnitude of an output from each of the amplifiers is constant irrespective of a deflected position of the electron beam at a time of detection of the position of the position-detection mark.
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申请公布号 |
US5708276(A) |
申请公布日期 |
1998.01.13 |
申请号 |
US19960600456 |
申请日期 |
1996.02.13 |
申请人 |
FUJITSU LIMITED |
发明人 |
OHKAWA, TATSURO;KENICHI, KAWAKAMI;OOAE, YOSHIHISA;IKEDA, TOHRU;ISHIDA, KAZUSHI |
分类号 |
G01B15/00;G03F7/20;G03F9/00;H01J37/304;H01J37/305;H01L21/027;(IPC1-7):H01J37/304 |
主分类号 |
G01B15/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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