Patent ID: 6582623
Filing Date: 2003-06-24
Classification: C09G,C09K,H01L

Abstract:
A chemical mechanical polishing composition comprising a dispersion including at least one silane modified abrasive particle that is the product of the combination of a metal oxide abrasive having at least one surface metal hydroxide and at least one silane compound having the formula:Yâ€”Siâ€”(X1X2R) and dimers, trimers and oligomers thereof, wherein Y is hydroxy (â€”OH) or a hydrolyzable substituent, X1 and X2 are each independently selected from hydroxy, a hydrolyzable substituent, and a non-hydrolyzable substituent, and R is a non-hydrolyzable substituent wherein the non-hydrolyzable moieties are each independently selected from the group consisting of alkyl, cyloalkyl, aromatic, functionalized alkyl, functionalized aromatic, functionalized cycloalkyl, alkenes, disilane, and trisilane, one or more of which carbon atoms may be substituted with one or more atoms selected from oxygen, nitrogen, sulfur, phosphorous, halogen and combinations thereof wherein the silane is not an aminosilane and wherein the silane is not trialkyl silane.