摘要:
The solution is useful for removing a barrier material from a semiconductor substrate. The solution comprises, by weight percent, 0.01 to 25 oxidizer, 0 to 15 inhibitor for a nonferrous metal, 0 to 15 abrasive, 0 to 20 complexing agent for the nonferrous metal, 0.01 to 12 barrier removal agent and balance water. The barrier removal agent is selected from the group comprising imine derivative compounds, hydrazine derivative compounds and mixtures thereof.
摘要:
An aqueous composition is useful for polishing semiconductor wafers. The composition comprises a nonionic surfactant that suppresses removal rate of silicon carbide-nitride and has a hydrophilic group and a hydrophobic group. The hydrophobic group has a carbon chain length of greater than three. And the nonionic surfactant suppresses silicon carbide-nitride removal rate at least 100 angstroms per minute greater than its decrease in silicon nitride removal rate as measured with a microporous polyurethane polishing pad pressure measured normal to a wafer of 13.8 kPa.
摘要:
An aqueous composition is useful for polishing semiconductor wafers. The composition comprises a nonionic surfactant that suppresses removal rate of silicon carbide-nitride and has a hydrophilic group and a hydrophobic group. The hydrophobic group has a carbon chain length of greater than three. And the nonionic surfactant suppresses silicon carbide-nitride removal rate at least 100 angstroms per minute greater than its decrease in silicon nitride removal rate as measured with a microporous polyurethane polishing pad pressure measured normal to a wafer of 13.8 kPa.
摘要:
The aqueous polishing composition is useful for polishing semiconductor substrates. The polishing solution comprises 0.001 to 2 wt % of a polyvinylalcohol copolymer, the polyvinylalcohol copolymer having a first component, a second component and a weight average molecular weight of 1,000 to 1,000,000 grams/mole, and the first component being 50 to 95 mole percent vinyl alcohol and the second component being more hydrophobic than the vinyl alcohol and 0.05 to 50 wt % silica abrasive particles; and the composition having a pH of 8 to 12.
摘要:
An aqueous composition is useful for polishing semiconductor wafers. The composition comprises a nonionic surfactant that suppresses removal rate of silicon carbide-nitride and has a hydrophilic group and a hydrophobic group. The hydrophobic group has a carbon chain length of greater than three. And the nonionic surfactant suppresses silicon carbide-nitride removal rate at least 100 angstroms per minute greater than its decrease in silicon nitride removal rate as measured with a microporous polyurethane polishing pad pressure measured normal to a wafer of 13.8 kPa.
摘要:
The solution is useful for removing a barrier material from a semiconductor substrate. The solution comprises, by weight percent, 0.01 to 25 oxidizer, 0 to 15 inhibitor for a nonferrous metal, 0 to 15 abrasive, 0 to 20 complexing agent for the nonferrous metal, 0.01 to 12 barrier removal agent and balance water. The barrier removal agent is selected from the group comprising imine derivative compounds, hydrazine derivative compounds and mixtures thereof.
摘要:
An aqueous slurry is useful for chemical mechanical planarizing a semiconductor substrate. The slurry includes by weight percent, 0.1 to 25 oxidizing agent, 0.1 to 20 silica particles having an average particle size of less than 200 nm, 0.005 to 0.8 polyvinyl pyrrolidone for coating the silica particles, 0.01 to 10 inhibitor, 0.001 to 10 complexing agent and a balance water and incidental impurities; and the aqueous slurry having a pH of at least 7.
摘要:
A method of manufacturing polymer-coated particles is useful for chemical mechanical polishing magnetic, optical, semiconductor or silicon substrates. First it provides a dispersion of particle cores in a non-aqueous solvent. Then introducing a polymeric precursor into the dispersion to react the polymeric precursor forms a polymer. The polymer coats at least a portion of the surface of the particle cores with the polymer and forms the polymer-coated particles having a solid outer polymeric shell. Substituting the non-aqueous solvent with water forms an aqueous mixture containing the polymer-coated particles. And it forms an aqueous chemical mechanical polishing formulation with the polymer-coated particles without drying the polymer-coated particles.
摘要:
The present invention provides an aqueous composition useful for polishing nonferrous metal interconnects on a semiconductor wafer comprising oxidizer, inhibitor for a nonferrous metal, complexing agent for the nonferrous metal, modified cellulose, 0.01 to 5% by weight copolymer of acrylic acid and methacrylic acid, and balance water, wherein the copolymer of acrylic acid and methacrylic acid has a monomer ratio (acrylic acid/methacrylic acid) in the range of 1:30 to 30:1 and the copolymer has a molecular weight in the range of 1K to 1000K.
摘要:
The present invention provides an aqueous composition useful for polishing copper interconnects on a semiconductor wafer comprising by weight percent up to 25 oxidizer, 0.05 to 1 inhibitor for a nonferrous metal, 0.01 to 5 complexing agent for the nonferrous metal, 0.01 to 5 modified cellulose, and balance water, wherein the composition is free of polyacrylic acid, the amount of modified cellulose providing a copper removal function and a wafer clear of copper.