Patent ID: 6373553
Filing Date: 2002-04-16
Classification: G03F

Abstract:
A lithography method, comprising the steps of:utilizing a mask having a mask pattern for printing an image pattern; and forming Talbot sub-images of an illuminated grating on a photosensitive target to print said image pattern on the photosensitive target such that said image pattern printed has a pitch equal to half the pitch of the mask pattern, wherein said Talbot sub-images on the photosensitive target are formed by moving the photosensitive target away from an image plane by a Talbot distance obtained, during exposure of a light beam onto the photosensitive target via said mask, through one of a grating equation of L2/2&lgr; where L represents the pitch of the mask pattern and &lgr; represents a wavelength of the light beam selected for optical lithography, and the use of a lithography simulator.