Patent ID: 11928808
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 3:
4. The method of claim 1, wherein the first detection result comprises a first defect position where a wafer defect exists in the second picture, and the second detection result comprises a second defect position where the wafer defect exists in each third picture;
wherein determining the total detection result of the original wafer picture according to the first detection result and the plurality of second detection results comprises:
mapping the first defect position in the first detection result and the second defect position in each second detection result into a coordinate system of the original wafer picture to acquire a plurality of third defect positions; and
determining a total defect position where the wafer defect exists in the original wafer picture according to the plurality of third defect positions.