Simultaneous computation of multiple points on one or...

Details Simultaneous computation of multiple points on one or... Simultaneous computation of multiple points on one or...

2007-10-18

2010-11-23

Carter, Aaron W (Department: 2624)

Image analysis

Applications

Manufacturing or product inspection

C716S030000

Reexamination Certificate

active

07840057

ABSTRACT:
Methods, and program storage devices, for performing model-based optical proximity correction by providing a region of interest (ROI) having an interaction distance and locating at least one polygon within the ROI. A cut line of sample points representative of a set of vertices, or plurality of cut lines, are generated within the ROI across at least one lateral edge of the polygon(s). An angular position, and first and second portions of the cut line residing on opposing sides of an intersection between the cut line and the lateral edge of the polygon are determined, followed by generating a new ROI by extending the original ROI beyond its interaction distance based on such angular position, and first and second portions of the cut line. In this manner, a variety of new ROIs may be generated, in a variety of different directions, to ultimately correct for optical proximity.

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