Patent ID: 6813757
Filing Date: 2004-11-02
Classification: G03F,G06F

Abstract:
A method for evaluating a mask pattern for a product; said product being manufactured by a process; at least a part of said process being described by a mathematical process model; the method comprising the steps of, in said mathematical process model:(a) selecting a reference locus; (b) determining a sampling direction from said reference locus; (c) selecting a sampling locus in said sampling direction; (d) evaluating a model factor at said sampling locus; (e) applying at least one predetermined criterion to said model factor to determine a conclusion; (f) if said conclusion is a first inference, repeating steps (c) through (e); (g) if said conclusion is a second inference, determining whether said evaluation is complete; and (h) repeating steps (a) through (g) until said evaluating is complete.