CMP system for metal deposition

A system for dished metal redevelopment by providing a metal deposition solution at an interface between a moving semiconductor wafer and a moving polishing pad, which deposits metal onto dished metal in trenches in a layer of an interlayer dielectric; and by polishing the wafer with a relatively re...

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Bibliographic Details
Main Authors Thomas, Terence M, So, Joseph K
Format Patent
LanguageEnglish
Published 01.08.2006
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Summary:A system for dished metal redevelopment by providing a metal deposition solution at an interface between a moving semiconductor wafer and a moving polishing pad, which deposits metal onto dished metal in trenches in a layer of an interlayer dielectric; and by polishing the wafer with a relatively reduced polishing pressure to polish metal being deposited. A polishing fluid is disclosed for use in a CMP polishing system, the polishing fluid being a metal deposition solution for dished metal redevelopment.