Patent ID: 7808613
Filing Date: 2010-10-05
Classification: G03F

Abstract:
1. A device manufacturing method comprising: identifying a substrate to be processed; performing a manufacturing step of a patterned layer on the substrate; storing a correction map comprising a spatial distribution of correction data for the substrate or the data to generate the correction map, in association with the identification of the substrate, the correction map comprising, for each of a plurality of points on the substrate, a predicted error caused by an apparatus used to process the substrate, wherein the correction map comprises one or more selected from: a surface correction map of a substrate table, a contamination correction map comprising substrate table contamination induced errors, a tilt correction map comprising substrate table local tilt induced errors, a substrate heating correction map comprising thermal induced substrate deformation errors caused by thermal heating of the substrate during an exposure, a polishing correction map comprising polishing system induced errors, a bake plate correction map comprising bake plate induced errors, an etch tool correction map comprising etch tool induced errors, or an aberration correction map comprising projection system induced errors caused by aberrations of a projection system used to transfer a pattern to the substrate; and transferring a pattern of a patterning device onto the substrate wherein alignment of the substrate with respect to the patterning device is corrected using information of the correction map identified for the substrate or the data to generate the correction map, or measuring overlay errors on the substrate and correcting measured overlay errors using information of the correction map identified for the substrate or the data to generate the correction map, or both the transferring and measuring.