Patent ID: 8655478

Claim:
A method of dressing a polishing member with a diamond dresser while moving the diamond dresser and the polishing member relative to each other, the diamond dresser having diamond particles arranged on a surface thereof, said method comprising: calculating sliding distances of the diamond dresser at respective predefined points on a surface of the polishing member using temporary dressing conditions; correcting the calculated sliding distances in accordance with a depth of the diamond particles thrusting into the polishing member such that differences between the calculated sliding distances are reduced; modifying the temporary dressing conditions based on the corrected sliding distances; searching dressing conditions for a preset distribution of the sliding distances from the modified temporary dressing conditions; and dressing the polishing member with the diamond dresser under the dressing conditions searched, wherein said correcting of the calculated sliding distances is performed by multiplying the calculated sliding distances by correction factors, respectively, which vary such that the differences between the calculated sliding distances are reduced.