Patent ID: 11900586
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. The method according to claim 15, wherein the step of acquiring the plurality of defect images and training the machine learning model comprises:
acquiring a plurality of defect images obtained by the inspection tool performing hot scans, under a plurality of optical modes, on a wafer manufactured with a design of a semiconductor product and selecting an optimal optical mode for detecting the hot spot defects from among the plurality of optical modes based on a separability of defects to nuisances in the defect images obtained under each optical mode; and
training the machine learning model for classifying the defects from the nuisances with the defect images obtained under the selected optimal optical mode to evaluate optimal filters for detecting the hot spot defects for the optimal optical mode.