POLISHING COMPOSITIONS FOR CONTROLLING METAL INTERCONNECT REMOVAL RATE IN SEMICONDUCTOR WAFERS

A polishing composition suitable for polishing semiconductor substrates comprises 0.001 to 2 wt % of a thermoplastic polymer; and 0.001 to 1 wt % of polyvinylpyrrolidone; wherein varying the weight ratio of thermoplastic polymer to the polyvinylpyrrolidone controls the removal rate of the non-ferrou...

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Hauptverfasser: QUANCI JOHN, LAVOIE JR. RAYMOND LEE, YE QIANQIU
Format: Patent
Sprache:eng
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Zusammenfassung:A polishing composition suitable for polishing semiconductor substrates comprises 0.001 to 2 wt % of a thermoplastic polymer; and 0.001 to 1 wt % of polyvinylpyrrolidone; wherein varying the weight ratio of thermoplastic polymer to the polyvinylpyrrolidone controls the removal rate of the non-ferrous interconnect.