Patent ID: 7073161
Filing Date: 2006-07-04
Classification: G03F

Abstract:
1. A method of forming a patterned reticle, comprising: providing a design which is ultimately to be printed in radiation-sensitive material utilizing the patterned reticle; utilizing a first set of design rules to develop a first approximation of a pattern layout of the patterned reticle for producing the design, the first approximation comprising a first set of layout elements; performing an optical proximity correction on the first approximation to form a second approximation of the pattern layout; after the optical proximity correction, adding additional layout elements to the second approximation to form a pattern layout dataset; the second approximation having principal layout elements with one or more planes of symmetry therethrough and the additional layout elements being added proximate one or more of the principal layout elements and asymmetrically relative to at least one of the planes of symmetry of the principal layout elements; and utilizing the pattern layout dataset during taping of a reticle to form the patterned reticle.