Patent ID: 6527817
Filing Date: 2003-03-04
Classification: C09G,C09K,G11B,H01L

Abstract:
A composition for planarizing or polishing a surface comprising (a) a liquid carrier, (b) a chemical accelerator, wherein the chemical accelerator is (i) an oxidizer selected from the group consisting of oxidizing metal salts, oxidizing metal complexes, nonmetallic oxidizing acids, ammonium salts, phosphonium salts, and trioxides, (ii) a sulfur-containing compound selected from the group consisting of thiols, thioesters, and thioethers, (iii) a nitrogen-containing compound selected from the group consisting of imines, amides, imides, iminodiacetic acid, oligomeric imines, oligomeric amides, oligomeric imides, polymeric imines, polymeric amides, and polymeric imides, (iv) a phosphate ion, (v) a phosphonate ion, or combinations thereof, and (c) solids comprising about 5-90 wt. % of fumed metal oxide and about 10-95 wt. % of abrasive particles, wherein about 90% or more of the abrasive particles (by number) have a particle size no greater than 100 nm.