Patent ID: 8251774

Claim:
A method of conditioning an oxide surface of a wafer, the method comprising: providing a structured abrasive article comprising: an at least translucent film backing; and an abrasive layer disposed on the at least translucent film backing and comprising a plurality of shaped abrasive composites, wherein the shaped abrasive composites comprise abrasive particles dispersed in a binder, wherein the abrasive particles consist essentially of ceria particles having an average primary particle size of less than 100 nanometers, wherein the binder comprises a polyether acid and a reaction product of components comprising a carboxylic(meth)acrylate and a poly(meth)acrylate, and wherein based on a total weight of the abrasive layer, the abrasive particles are present in an amount of at least 70 percent by weight; conditioning the abrasive layer; contacting the at least translucent film backing with a subpad, the subpad having a first window extending therethrough; securing the subpad to a platen, the platen having a second window extending therethrough and contiguous with the first window; frictionally contacting the abrasive layer with the oxide surface of the wafer; and moving at least one of the abrasive layer or the wafer to abrade the surface of the wafer while in contact with a working fluid; and monitoring a surface characteristic of the wafer using a visible light beam directed through the first window, the second window, and the structured abrasive article.