Patent ID: 11861818
Assignee: ASML NETHERLANDS B.V.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A defect inspection system comprising:
an inspection tool for inspecting a wafer;
a memory storing instructions implemented as a plurality of modules, each of the plurality of modules being configured to detect defects with a different property; and
a controller electronically coupled to the inspection tool and memory, the controller being configured to cause the defect inspect system to:
receive, from the inspection tool, inspection data representing an image of the wafer;
input first inspection data to a first module of the plurality of modules, wherein the first module outputs a first set of points of interests (POIs) having a first property;
input second inspection data to a second module of the plurality of modules, wherein the second inspection data does not include the first set of POIs, and the second module outputs a second set of POIs having a second property;
input the second set of POIs to a third module of the plurality of modules, wherein the third module outputs a third set of POIs having a third property; and
report the third set of POIs as defects having both the second property and the third property.