Patent ID: 6934410
Filing Date: 2005-08-23
Classification: G03F

Abstract:
1. A process of designing a mask for use in a photolithographic process to form a predetermined feature on a substrate using a process light intensity, the process comprising steps of: a) defining a mask for use in the photolithographic process, wherein the mask has at least one boundary matching a boundary of the feature; b) identifying a location of the process light intensity relative to the mask boundary; c) segmenting the mask boundary into a plurality of regions, each region having a midpoint; d) calculating a distance Δ normal to the boundary in each region between the respective region midpoint and the location of the process light intensity; e) identifying if a close connection exists relative to the respective region; and f) for each region, moving the region a distance Δ′ based on the distance Δ calculated in step (d) and the identification in step (e).