Invention Grant
US07727055B2 Flexible membrane for carrier head 有权
用于载体头的柔性膜

Flexible membrane for carrier head
Abstract:
A carrier head that has a base assembly, a retaining ring assembly, a carrier ring, and a flexible membrane is described. The flexible membrane has a main portion and an outer annular portion, wherein a junction between the main portion and the outer annular portion comprises a peripheral edge hinge and an annular recess above the hinge along the outer wall of the outer annular portion.
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