Method and device for the injection of CMP slurry
Disclosed is an apparatus for injecting slurry onto the polishing pad surface of a chemical mechanical polishing (CMP) tool. The disclosed apparatus includes a rectilinear shaped injector bottom, where multiple slots are created in the top surface of the injector bottom, allowing the injector bottom...
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Format | Patent |
Language | English |
Published |
30.09.2014
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Subjects | |
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Abstract | Disclosed is an apparatus for injecting slurry onto the polishing pad surface of a chemical mechanical polishing (CMP) tool. The disclosed apparatus includes a rectilinear shaped injector bottom, where multiple slots are created in the top surface of the injector bottom, allowing the injector bottom to flex and to conform to the polishing pad profile. CMP slurry or components thereof are introduced through one or more top surface openings, travel through the injector body, and exit through a slit or bottom surface opening. The slurry is spread into a thin film by the injector, and is introduced at the gap between the surface of the polishing pad and the wafer, along the leading edge of the wafer, in quantities small enough that all or most of the slurry is introduced between the wafer and the polishing pad. |
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AbstractList | Disclosed is an apparatus for injecting slurry onto the polishing pad surface of a chemical mechanical polishing (CMP) tool. The disclosed apparatus includes a rectilinear shaped injector bottom, where multiple slots are created in the top surface of the injector bottom, allowing the injector bottom to flex and to conform to the polishing pad profile. CMP slurry or components thereof are introduced through one or more top surface openings, travel through the injector body, and exit through a slit or bottom surface opening. The slurry is spread into a thin film by the injector, and is introduced at the gap between the surface of the polishing pad and the wafer, along the leading edge of the wafer, in quantities small enough that all or most of the slurry is introduced between the wafer and the polishing pad. |
Author | SAMPURNO YASA ADI BORUCKI LEONARD JOHN PHILIPOSSIAN ARA |
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RelatedCompanies | SAMPURNO YASA ADI ARACA INC BORUCKI LEONARD JOHN PHILIPOSSIAN ARA |
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Snippet | Disclosed is an apparatus for injecting slurry onto the polishing pad surface of a chemical mechanical polishing (CMP) tool. The disclosed apparatus includes a... |
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SubjectTerms | DRESSING OR CONDITIONING OF ABRADING SURFACES FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING PERFORMING OPERATIONS POLISHING TRANSPORTING |
Title | Method and device for the injection of CMP slurry |
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