发明名称 Alignment apparatus and exposure apparatus using the same
摘要 An exposure apparatus that includes a first movable stage which holds a first wafer and aligns the first wafer at a predetermined position, a second movable stage which holds a second wafer and aligns the second wafer at a predetermined position, first stator coils for driving in a first direction one of the first and second movable stages located in a measurement region for measuring an exposure result, second stator coils for driving the other of the first and second movable stages located in an exposure region for performing exposure in the first direction independently of the movable stage in the measurement region, third stator coils for independently driving the first and second movable stages in a second direction perpendicular to the first direction, and a current control device for supplying to the first to third stator coils control currents having phase differences to generate driving forces between movable element magnets of the first and second movable stages and the stator coils facing the movable element magnets.
申请公布号 US2005248219(A1) 申请公布日期 2005.11.10
申请号 US20050178568 申请日期 2005.07.12
申请人 CANON KABUSHIKI KAISHA 发明人 KORENAGA NOBUSHIGE
分类号 G03F7/20;G03F9/00;G05D3/00;H01L21/027;H02K9/19;H02K9/22;H02K16/02;H02K41/02;H02K41/03;H02N15/02;H02P25/06;(IPC1-7):H02K41/00;G03B27/58 主分类号 G03F7/20
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