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.
摘要:
A substrate holder (WT) for use in a lithographic apparatus and configured to support a substrate (W), the substrate holder comprising: • a main body (21) having a main body surface (22); • a plurality of burls (20) projecting from the main body surface to support the substrate spaced apart from the main body surface; and • a liquid control structure (200) provided in a peripheral region (22a) of the main body surface and configured to cause liquid to preferentially flow toward the periphery of the main body surface.
摘要:
A support table, a method of loading a substrate, a lithographic apparatus and a method of manufacturing a device using a lithographic apparatus are disclosed. In one arrangement, a support table is configured to support a substrate. The support table has a base surface. The base surface faces a bottom surface of the substrate when the substrate is supported by the support table. One or more gas cushion members are provided above the base surface. Each of the gas cushion members includes a recess. The recess is shaped and configured such that a lowering of the substrate into a position on the support table at which the substrate is supported by the support table causes a localized build-up of pressure within the recess. The localized build-up of pressure provides a localized gas cushioning effect during the lowering of the substrate,