Abstract:
A barrier member (10) is disclosed for use in immersion lithography. The barrier member comprises an extractor assembly (70) on a bottom surface configured to face the substrate (W) . The extractor assembly includes a plate (200) configured to split the space between a liquid removal device and the substrate in two such that a meniscus (310) is formed in an upper channel (220) between the liquid removal device and the plate and such that a meniscus (320) is formed in a lower channel (230) below the plate between the plate and the substrate.
Abstract:
A method for compensating for an exposure error in an exposure process of a lithographic apparatus that comprises a substrate table, the method comprising: obtaining a dose measurement indicative of a dose of IR radiation that reaches substrate level, wherein the dose measurement can be used to calculate an amount of IR radiation absorbed by an object in the lithographic apparatus during an exposure process; and using the dose measurement to control the exposure process so as to compensate for an exposure error associated with the IR radiation absorbed by the object during the exposure process.
Abstract:
A barrier member (10) is disclosed for use in immersion lithography. The barrier member comprises an extractor assembly (70) on a bottom surface configured to face the substrate (W) . The extractor assembly includes a plate (200) configured to split the space between a liquid removal device and the substrate in two such that a meniscus (310) is formed in an upper channel (220) between the liquid removal device and the plate and such that a meniscus (320) is formed in a lower channel (230) below the plate between the plate and the substrate.
Abstract:
A method for compensating for an exposure error in an exposure process of a lithographic apparatus that comprises a substrate table, the method comprising: obtaining a dose measurement indicative of a dose of IR radiation that reaches substrate level, wherein the dose measurement can be used to calculate an amount of IR radiation absorbed by an object in the lithographic apparatus during an exposure process; and using the dose measurement to control the exposure process so as to compensate for an exposure error associated with the IR radiation absorbed by the object during the exposure process.
Abstract:
A barrier member (10) is disclosed for use in immersion lithography. The barrier member comprises an extractor assembly (70) on a bottom surface configured to face the substrate (W) . The extractor assembly includes a plate (200) configured to split the space between a liquid removal device and the substrate in two such that a meniscus (310) is formed in an upper channel (220) between the liquid removal device and the plate and such that a meniscus (320) is formed in a lower channel (230) below the plate between the plate and the substrate.