Patent ID: 7508489
Filing Date: 2009-03-24
Classification: G03B,G03F

Abstract:
1. A lithographic method of manufacturing a miniaturized device using a projection exposure system, the method comprising: illuminating an object plane of an imaging optics of the projection exposure system with measuring light; detecting, for each of a plurality of locations on an image plane of the imaging optics, an angular distribution of an intensity of the measuring light traversing the image plane at the respective location; adjusting a telecentricity of the projection exposure system based on a selected patterning structure to be imaged and based on the plurality of the detected angular distributions; disposing the selected patterning structure to be imaged in a region of the object plane of the imaging optics; disposing a substrate carrying a resist in a region of the image plane of the imaging optics and exposing the resist with imaging light using the projection exposure system with the adjusted telecentricity; and developing the exposed resist and processing the substrate with the developed resist.