| 摘要 |
A liquid immersion lithography apparatus and method exposes a substrate with light via a projection system and a liquid. A table assembly has a top surface and is movable relative to the projection system while supporting the substrate. The table assembly top surface has a first opening portion, and a top surface of a sensor is arranged inside of the first opening portion. The sensor top surface is positionable opposite the projection system by the table assembly such that a gap, in which the liquid can be maintained, is formed between the projection system and the sensor top surface. The table assembly and sensor top surfaces are apposed on a substantially same plane, or are substantially co-planar.
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