Patent ID: 11901214
Assignee: ZEUS COMPANY LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 14:
15. The wafer processing apparatus of claim 14, wherein the chucking module includes:
a chucking base installed in the rotary chuck unit;
a chucking rotating part connected to the chucking base to rotate the chucking base;
a plurality of first chucking link parts that move radially when the chucking base rotates;
a plurality of wafer assembly restraining parts connected to the plurality of first chucking link parts and configured to press the retainer ring portion to be positioned and fixed to the vacuum chuck unit as the plurality of first chucking link parts move radially;
a plurality of second chucking link parts that move radially when the chucking base rotates; and
a plurality of cover restraining parts connected to the plurality of second chucking link parts and the ring cover unit to move the ring cover unit upward or downward in conjunction with movement of the plurality of second chucking link parts.