Patent ID: 6143580
Filing Date: 2000-11-07
Classification: H01J,H01L

Abstract:
A method of forming a mask pattern comprising:providing a first surface over which a mask pattern is to be formed;providing a material having a second surface over the first surface;applying a mixture comprising mask particles therein onto the second surface; the mixture, as applied, leaving a first distribution of mask particles over the second surface, the first distribution having a first optically-quantifiable characteristic; andafter applying the mixture to the second surface, laterally dispersing the mask particles over the second surface and into a second distribution over the first surface by placing a particle-dispersing structure directly into the mixture on the second surface, and moving the particle-dispersing structure laterally through the mixture on the second surface, wherein the second distribution has a second optically-quantifiable characteristic, distinct from the first optically-quantifiable characteristic.