Patent ID: 6110627
Filing Date: 2000-08-29
Classification: B82Y,G03F,H01J

Abstract:
In a method for microlithographically transferring a pattern, defined by a reticle, onto a resist-coated substrate using a charged particle beam, wherein the pattern includes a feature tending to exhibit resist heating when exposed onto an exposure location on the resist-coated surface by the charged particle beam, an improvement comprising:(a) if the pattern is defined by a stencil reticle and if the feature is larger than a predetermined value, then dividing the feature into first and second sets of feature portions and defining the first set of feature portions separately from the second set of feature portions such that each set is separately exposed at the exposure location such that the first and second exposed sets collectively form the complete feature at the exposure location; and(b) if the pattern is defined by a membrane reticle, then defining the feature on the reticle by a corresponding charged-particle-beam (CPB) transmitting void in a layer of CPB-scattering material deposited on a membrane, and if the void has a size that is larger than a predetermined value, then providing the void with an interior region including at least one CPB-scattering body.