Patent ID: 7027128
Filing Date: 2006-04-11
Classification: G03F,G21K

Abstract:
1. A scanning exposure apparatus for exposing a substrate to light via a pattern of a reticle, said apparatus comprising: an exposure system configured to expose the substrate to light with respect to a unit region, to which the pattern is transferred, of the substrate, by relatively moving the reticle and the substrate; and controller configured to determine whether a condition of an exposure performed by said exposure system is within a first tolerance during the exposure, to cause said exposure system to continue exposing a remaining region in the unit region of the substrate to light, even after said controller determines that the condition is out of the first tolerance for the unit region, and to stop an exposure sequence to be performed by said exposure system if a number of successive unit regions with respect to which the condition is out of the first tolerance exceeds a second tolerance.