Patent ID: 11860551
Assignee: APPLIED MATERIALS ISRAEL LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 14:
15. The system according to claim 11 wherein the imager is configured to illuminate with the charge particle beam, another dense pattern of the substrate and generate images of the other dense pattern; and
wherein the processor is configured to:
search for another rare stochastic defect in another dense pattern of the substrate; wherein the other rare stochastic defect appears in another functional pattern of the substrate with a defect density that is below 10−9 and appears in the other dense pattern with a defect density that is above 10−7; wherein the other dense pattern is a dense representation of the other functional pattern that differs from the other functional pattern by at least one out of (a) a distance between features of the other dense pattern, and (b) a width of the features of the other dense pattern; wherein the other rare stochastic defect differ from rare stochastic defect by type; and
estimate the occurrence of the other rare stochastic defect within the other functional pattern based on an outcome of the searching for the other rare stochastic defect.