Abstract:
An aqueous polishing composition comprising (A) abrasive ceria particles and (B) amphiphilic nonionic surfactants selected water-soluble and water-dispersible, linear and branched polyoxyalkylene blockcopolymers of the general formula I: R[(B1)m/(B2)nY]p (I), wherein the indices and the variables have the following meaning: m, n, and p integers≧1; R hydrogen atom or monovalent or polyvalent organic residue, except C5-C20 alkyl groups; (B1) block of oxyethylene monomer units; (B2) block of substituted oxyalkylene monomer units wherein the substituents are selected from two methyl groups, alkyl groups of more than two carbon atoms and cycloalkyl, aryl, alkyl-cycloalkyl, alkyl-aryl, cycloalkyl-aryl and alkyl-cycloalkyl-aryl groups; and Y hydrogen atom or monovalent organic residue, except C5-C20 alkyl groups; with the proviso that when (B) contains more than one block (B1) or (B2) two blocks of the same type are separated by a block of the other type.
Abstract:
Described are a chemical-mechanical polishing (CMP) composition comprising abrasive particles in the form of organic/inorganic composite particles as well as the use of said composite particles as abrasive particles in a CMP composition and processes for the manufacture of a semiconductor device comprising chemical mechanical polishing of a substrate in the presence said CMP composition.
Abstract:
A chemical mechanical polishing (CMP) composition comprising (A) Colloidal or fumed inorganic particles or a mixture thereof, (B) a poly (amino acid) and or a salt thereof, and (M) an aqueous medium.
Abstract:
A chemical mechanical polishing (CMP) composition Abstract Use of a chemical mechanical polishing (CMP) composition comprising (A) inorganic particles, organic particles, or a mixture thereof, (B) a heteropolyacid or a salt thereof, (C) a salt comprising chloride, fluoride, bromide, or a mixture thereof as anion, and (D) an aqueous medium, for polishing a substrate comprising a self-passivating metal, germanium, nickel phosphorous (NiP), or a mixture thereof.