Patent ID: 11887296
Assignee: KLA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A system configured to set up care areas for inspection of a specimen, comprising:
an imaging subsystem configured for generating images of a specimen; and
a computer subsystem configured for:
determining a number of defects detected in predefined cells within one or more of the images generated in a repeating patterned area formed on the specimen;
comparing the number of the defects detected in each of two or more of the predefined cells to a predetermined threshold, wherein the predetermined threshold is selected to be lower than numbers of defects detected when systematic noise is present;
designating any one or more of the two or more of the predefined cells in which the number of the defects is greater than the predetermined threshold as one or more care areas; and
storing information for the one or more care areas for use in inspection of the specimen.