Patent ID: 7107572

Claim:
A method of forming a patterned reticle, comprising: providing a design which is ultimately to be printed in radiation-sensitive material utilizing radiation passing through the patterned reticle, the design having first and second features which are at different locations but otherwise desired to be identical in printed dimension to one another; utilizing a set of design rules to develop an approximation of a plan of the pattern for the patterned reticle, the approximation comprising first and second patterns corresponding to regions of the patterned reticle which are to be utilized for forming the first and second features, respectively; the first and second patterns being identical to one another; after utilizing the set of design rules, altering the first pattern relative to the second pattern; after altering the first pattern, performing an optical proximity correction to form a plan dataset; and utilizing the plan dataset either directly or with modification to tape an arrangement of relatively opaque regions and relatively transparent regions onto a reticle to form the patterned reticle; the patterned reticle ultimately producing the first and second features of the design more similar to one another than it would if identical first and second patterns had been utilized during the optical proximity correction.