Invention Grant
US08454413B2 Multi-chamber carrier head with a textured membrane 有权
具有纹理膜的多腔载体头

Multi-chamber carrier head with a textured membrane
Abstract:
A flexible membrane for use in a carrier head has a generally circular main portion with a lower surface, an annular outer portion for connection to a base assembly, and an annular flap extending from the main portion on a side opposite the lower surface for connection to the base assembly. At least one surface of the flap has a surface texture to prevent adhesion.
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