Patent ID: 8502954
Filing Date: 2013-08-06
Classification: G03F

Abstract:
1. A lithographic apparatus, comprising: a substrate support configured to support a substrate; a projection system configured to project a patterned beam onto a target portion on a surface of the substrate, the patterned beam having predetermined spatial characteristics relative to the substrate support for a desired exposure pattern on the surface of the substrate support; a temperature measuring system configured to measure a temperature of the substrate at a plurality of regions of the substrate; a calculating system configured to develop a model of a dimensional response of the substrate to the measured temperature; and an adjusting system comprising a system configured to develop a map of a change in position of points on the substrate relative to a coordinate system given the measured temperature at the plurality of regions of the substrate and the dimensional response model, the adjusting system configured to adjust the spatial characteristics of the patterned beam relative to the substrate support in accordance with the change in position map to compensate for the calculated dimensional response.