Patent ID: 6292255
Filing Date: 2001-09-18
Classification: G03F

Abstract:
A scanning photolithographic device having a corrected exposure dose comprising:an illumination source providing electromagnetic radiation;a reticle stage, positioned to receive the electromagnetic radiation from said illumination source;projection optics positioned to receive the electromagnetic radiation from a reticle placed on said reticle stage;a substrate stage positioned to receive the electromagnetic radiation from said projection optics;a stage control coupled to said reticle stage and said substrate stage, said stage control controlling the movement of said reticle and substrate stages providing a scanning exposure of a photosensitive resist covered substrate and having a direction of scan; anda dose control, said dose control modifying an exposure dose resulting in a predetermined exposure dose of electromagnetic radiation being received by the photosensitive substrate as a function of position along the direction of scan,whereby variations in linewidth in the direction of scan are reduced.