Patent ID: 8035668
Filing Date: 2011-10-11
Classification: G03F

Abstract:
1. An exposure apparatus which forms a pattern on an object, said apparatus comprising: an exposure head structure in which a plurality of elemental exposure units are arrayed, each elemental exposure unit including (i) at least one light source for emitting exposure light and (ii) an optical element which forms an image of the at least one light source on the object, for exposing the object; a sensor which detects a position of a surface of the object in a direction perpendicular to the surface and which produces a detection result; and a controller which receives the detection result from said sensor and controls said exposure head structure such that a pattern is formed on the object by the exposure, while at least one of said plurality of elemental exposure units, which can form the image while satisfying a given exposure condition, is selected to expose the object, based on the detection result by said sensor, wherein said plurality of elemental exposure units are adjusted before exposure of the object, such that positions of the images, formed by the at least one light source of said plurality of elemental exposure units, vary in the direction perpendicular to the surface of the object to include plural positions different from each other.