Patent ID: 7324186
Filing Date: 2008-01-29
Classification: G03F

Abstract:
1. A system, comprising: an illumination system configured to generate a beam of radiation; a patterning device configured to pattern the beam of radiation; a projection system configured to project the patterned beam onto a target portion of a substrate, the substrate located within a first plane, the projection system including an array of focusing elements located within a second plane, the array supporting the focusing elements; and an actuator system coupled to a side surface of the array and configured to move the array of focusing elements along an axis that is perpendicular to the first and second planes, wherein the illumination system generates a second beam of radiation, and the system further comprises: a second patterning device that patterns the second beam of radiation; and a second projection system that projects the second patterned beam onto a second target portion of the substrate, the second projection system including a second array of focusing elements, wherein each of the second array of focusing elements projects a respective portion of the second patterned beam onto a corresponding portion of the second target portion of the substrate, and wherein the actuator system moves the first array of focusing elements relative to the second array of focusing elements.