Lithographic apparatus and device manufacturing method
A lithographic apparatus is provided comprising a substrate table WT for holding a substrate W, a projection system PL for projecting the patterned beam onto a target portion of the substrate W, and an isolated reference frame MF for providing a reference surface with respect to which the substrate...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A lithographic apparatus is provided comprising a substrate table WT for holding a substrate W, a projection system PL for projecting the patterned beam onto a target portion of the substrate W, and an isolated reference frame MF for providing a reference surface with respect to which the substrate W is measured, wherein the reference frame MF comprises a material having a high coefficient of thermal expansion. |
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