Patent ID: 6611953
Filing Date: 2003-08-26
Classification: G03F

Abstract:
A process of designing a mask for use in a photolithographic process to offset effects of light diffraction comprising steps of:a) identifying at least one region of each of a plurality of edges of a mask feature, each identified region having a length along the respective edge; b) identifying a light value associated with distance from a center of a disk of light; c) identifying a length of each line between a midpoint of each region and each of a plurality of points along edges of the mask feature; d) for each line, deriving a contribution of movement factor each based on the light value associated with the length of the line, the length of the respective region and a size of the disk of light; e) deriving a matrix of contributions of movement from the plurality of contribution of movement factors; and f) moving each region by an amount derived from the matrix.