发明名称 EXPOSURE APPARATUS AND DEVICE FABRICATION METHOD
摘要 <p>The present invention provides an exposure apparatus comprising a projection optical system configured to project a pattern of a reticle onto a substrate, a driving unit configured to drive a plurality of optical elements which form the projection optical system so as to adjust an imaging state of light which passes through the projection optical system, a detecting unit configured to detect a driving error when the driving unit drives a first optical element of the plurality of optical elements, and a control unit configured to control the driving unit to drive a second optical element different from the first optical element of the plurality of optical elements so as to reduce a change in the imaging state of the light which passes through the projection optical system due to the driving error.</p>
申请公布号 KR20090046727(A) 申请公布日期 2009.05.11
申请号 KR20080109328 申请日期 2008.11.05
申请人 CANON KABUSHIKI KAISHA 发明人 TAKESHITA BUNSUKE
分类号 H01L21/027 主分类号 H01L21/027
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