Invention Grant
US07905764B2 Polishing head using zone control 有权
抛光头使用区域控制

Polishing head using zone control
Abstract:
A polishing head for a chemical mechanical polishing apparatus is provided which includes at least two polishing head zones configured to provide different temperatures for transferring heat to at least two zones of a substrate corresponding to the at least two polishing head zones. The present disclosure addresses chemical mechanical polishing which allows a control of the polishing profile even if slurries are used, which show almost no dependency between polishing rate and down force.
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