Patent ID: 7601643

Claim:
A method of fabricating a semiconductor wafer, comprising: (a) mixing an aqueous slurry containing an abrasive material and a nonaqueous solvent in a mixing unit so as to create a first volume of an aqueous slurry/nonaqueous solvent mixture with a first weight % of said nonaqueous solvent prior to being disposed onto said semiconductor wafer; (b) disposing said first volume of the aqueous slurry/nonaqueous solvent mixture containing an abrasive material onto said semiconductor wafer; (c) polishing the semiconductor wafer with a polishing pad using said first volume; (d) mixing said aqueous slurry containing an abrasive material and said nonaqueous solvent so as to create a second volume of an aqueous slurry/nonaqueous solvent mixture having a greater weight % of said nonaqueous solvent than said first weight % prior to being disposed onto said semiconductor wafer; (e) disposing said second volume of said aqueous slurry/nonaqueous solvent mixture containing an abrasive material onto said semiconductor wafer; and (f) polishing said semiconductor wafer using said second volume.