Patent ID: 8082525
Filing Date: 2011-12-20
Classification: G03F,G06F

Abstract:
1. A computer-implemented method for determining a mask pattern to be used on a photo-mask in a lithography process, comprising: receiving at least a portion of a first mask pattern including first regions that violate pre-determined rules associated with the photo-mask; and determining, using the computer, a second mask pattern based on at least the portion of the first mask pattern, wherein the second mask pattern includes second regions that are estimated to comply with the pre-determined rules; wherein the second regions correspond to the first regions; wherein the second mask pattern is determined using a different technique than that used to determine the first mask pattern; wherein at least the portion of the first mask pattern further includes third regions that surround corresponding first regions; wherein the third regions are unchanged during the determination of the second mask pattern; and wherein a size of the third regions corresponds to an interaction range associated with the lithographic process.