Patent ID: 7553214

Claim:
A method of forming a polishing article, comprising: contacting a non-solid material to a non-linear edge of a sheet of polishing material, the sheet of polishing material having a polishing surface; causing the non-solid material to solidify to form a window that contacts the non-linear edge of the sheet of polishing material, the window extending along a first axis, the first axis being parallel to the polishing surface, the non-linear edge of the sheet of polishing material extending parallel to the first axis; and contacting the non-solid material to a second non-linear edge of a second sheet of polishing material, the second sheet of polishing material having a second polishing surface, and causing the non-solid material to solidify to form the window, the window contacting the second non-linear edge of the second sheet of polishing material, the first axis being parallel to the second polishing surface, the second non-linear edge of the second sheet of polishing material extending parallel to the first axis.