Patent ID: 6238852
Filing Date: 2001-05-29
Classification: G03F

Abstract:
A microlithographic system using a writable DMD spatial light modulator to provide the selected pattern over a number of partially overlapping scans to provide a seamless composite pattern on a photosensitive substrate, having a radiation source (1) providing a radiation beam (2) to a DMD (3) to provide via a projection subsystem (4) a dynamic partial pattern of selected `on` pixels under control of control means (7) as a stage (6), also under control of control means (7), provides a relative motion for scanning said selected partial pattern of selected `on` pixels onto a photosensitive layer (5) on a substrate panel (8)characterized bysecond projection subsystem (4-c) arranged to accept a dynamic partial pattern of selected `c-on` pixels, which is a negative of said dynamic partial pattern of selected `on` pixels;a second substrate panel (8-c), having a second photosensitive layer (5-c), mounted for common scanning motion with said substrate panel (8) on said stage (6);whereby a first pattern is imaged onto said first substrate panel (8) and a second pattern related to said first pattern is simultaneously imaged on said second substrate panel (8-c), utilizing all the radiation output of said radiation source (1).