Method for compensating for an exposure error, a device manufacturing method, a substrate table, a lithographic apparatus, a control system, a method for measuring reflectivity and a method for measuring a dose of EUV radiation

摘要

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.