Invention Grant
US08128461B1 Chemical mechanical polishing with multi-zone slurry delivery 有权
化学机械抛光与多区浆料输送

Chemical mechanical polishing with multi-zone slurry delivery
Abstract:
Chemical-mechanical polishing or planarization (CMP) is enhanced with multi-zone slurry delivery. A polishing pad is provided that contacts with the work piece, and a multi-zone platen is displaced proximate to the polishing pad to facilitate slurry delivery. The platen includes multiple fluid distribution layers that each include a fluid-distributing channel extending from a fluid source to a distribution point on layer. The distribution points on each of the fluid distribution layers correspond to different locations on the polishing surface to thereby create multiple fluid-delivery zones on the pad.
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