Patent ID: 11908720
Assignee: HANGZHOU SIZONE ELECTRONIC TECHNOLOGY INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A chemical mechanical planarization (CMP) wafer cleaning equipment, comprising a cleaning input unit, a megasonic cleaning unit, a number of scrubbing units, and a spin-drying unit arranged in sequence, in addition, the megasonic cleaning unit further comprises a transfer robot located above the cleaning equipment, comprising a horizontal movement axis, a vertical movement axis and a number of wafer grabbing devices, which transports wafers between the units, the wafer grabbing device near the side of the spin-drying unit grabs and flips the wafers with own wafer flipping function,
wherein the CMP wafer cleaning equipment further comprises a buffer unit, which is located in front of the cleaning input unit and temporarily stores a number of wafers,
wherein a water injector is installed in the buffer unit to prevent the wafers from being dried without being cleaned.