Patent ID: 8495530
Filing Date: 2013-07-23
Classification: G03F

Abstract:
1. A method, in a data processing system, for electrical yield enhancement retargeting of photolithographic layouts, the method comprising: performing, by an electrical yield enhancement retargeting mechanism in the data processing system, optical proximity correction on a set of target patterns in order to produce a set of optical proximity correction mask shapes; generating, by the electrical yield enhancement retargeting mechanism, a set of lithographic contours for each of the set of optical proximity correction mask shapes; determining, by the electrical yield enhancement retargeting mechanism, electrical yield sensitivities for at least one shape in a set of shapes in the set of target patterns; determining, by the electrical yield enhancement retargeting mechanism, an amount and a direction of retargeting for each shape in the set of shapes based on the electrical yield sensitivity of the shape; generating, by the electrical yield enhancement retargeting mechanism, a new set of target patterns with retargeted edges for each shape based on the amount and the direction of retargeting; determining, by the electrical yield enhancement retargeting mechanism, whether the new set of target patterns with retargeted edges satisfies all electrical constraints; and responsive to the new set of target patterns satisfying all electrical constraints associated with an initial set of target patterns, generating, by the electrical yield enhancement retargeting mechanism, a set of clean mask shapes.