Invention Grant
- Patent Title: Chemical mechanical polishing with multi-zone slurry delivery
- Patent Title (中): 化学机械抛光与多区浆料输送
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Application No.: US12140035Application Date: 2008-06-16
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Publication No.: US08128461B1Publication Date: 2012-03-06
- Inventor: Fergal O'Moore , Steve Schultz
- Applicant: Fergal O'Moore , Steve Schultz
- Applicant Address: US CA San Jose
- Assignee: Novellus Systems, Inc.
- Current Assignee: Novellus Systems, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: B24B1/00
- IPC: B24B1/00

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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