摘要:
A chemical mechanical polishing aqueous dispersion that is used to polish a polishing target that includes a wiring layer that contains tungsten, the chemical mechanical polishing aqueous dispersion including: (A) a cationic water-soluble polymer; (B) an iron (III) compound; and (C) colloidal silica having an average particle diameter calculated from a specific surface area determined by the BET method of 10 to 60 nm, the content (MA) (mass %) of the cationic water-soluble polymer (A) and the content (MC) (mass %) of the colloidal silica (C) satisfying the relationship “MA/MC=0.0001 to 0.003”, and the chemical mechanical polishing aqueous dispersion having a pH of 1 to 3.
摘要:
A chemical mechanical polishing method comprises polishing an organic film using a slurry including polymer particles having a surface functional group and a water-soluble polymer.
摘要:
A chemical mechanical polishing aqueous dispersion preparation set including: a first composition which includes colloidal silica having an average primary particle diameter of 15 to 40 nm and a basic compound and has a pH of 8.0 to 11.0; and a second composition which includes poly(meth)acrylic acid and an organic acid having two or more carbonyl groups other than the poly(meth)acrylic acid and has a pH of 1.0 to 5.0.
摘要:
A chemical mechanical polishing method of the present invention comprises conducting polishing by the use of a chemical mechanical polishing aqueous dispersion (A) containing abrasive grains and then conducting polishing by the use of a chemical mechanical polishing aqueous composition (B) containing at least one organic compound having a heterocyclic ring in addition to the chemical mechanical polishing aqueous dispersion (A). Also A chemical mechanical polishing agent kit of the present invention comprises the chemical mechanical polishing aqueous dispersion (A) and the chemical mechanical polishing aqueous composition (B). The polishing method and the polishing agent kit can prevent an increase of dishing and corrosion of wiring portion to enhance the yield.