Patent ID: 8286344

Claim:
A method for fabricating a semiconductor device, comprising: (a) depositing an insulating film on a semiconductor substrate; (b) forming a recess in the insulating film; (c) depositing a conductive film on the insulating film while filling the recess with the conductive film; and (d) polishing the conductive film, wherein the process (d) includes a first polishing sub-process using a first polisher pad conditioned with a first dresser and a second polishing sub-process using a second polisher pad conditioned with a second dresser different from the first dresser, wherein a ratio of a polish rate of the conductive film to a polish rate of the insulating film is controlled based on at least one of an abrasive grain arrangement density, a ratio of cuboctahedron abrasive grains, and arrangement of abrasive grains.