Patent ID: 6424405
Filing Date: 2002-07-23
Classification: G03F

Abstract:
An exposure apparatus, comprising:an illumination system for illuminating, with pulse light, a reticle having a pattern formed thereon; a reticle stage for scanning the reticle; a projection system for projecting the pattern onto a wafer; a wafer stage for scanning the wafer; an interface into which information related to a particular layer of the reticle is inputted; and a controller operable to determine whether exposure precision should be regarded or throughput should be regarded, said controller further being operable to change a scan speed of the reticle and the wafer on the basis of the information inputted to said interface, when said controller determines that precision is to be regarded, wherein the reticle is illuminated with the pulse light while the reticle and the wafer are scanned, by which the pattern of the reticle is transferred to the wafer sequentially.