Patent ID: 11869779
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A wafer cleaning method applied to the wafer cleaning equipment according to claim 1, the wafer cleaning method comprising:
placing the measuring wafer on the wafer carrying structure;
during wafer cleaning operation, detecting the landing position of the cleaning agent sprayed by the nozzle onto the surface of the measuring wafer; and
when it is determined that the detected landing position of the cleaning agent onto the surface of the measuring wafer deviates from the preset target region, adjusting at least one of the position or the spray angle of the nozzle, and the flow rate of the spayed cleaning agent, so that the landing position of the cleaning agent sprayed by the nozzle onto the surface of the measuring wafer is within the preset target region.