Patent ID: 8251774
Filing Date: 2012-08-28
Classification: B24B,B24D

Abstract:
1. A method of conditioning an oxide surface of a wafer, the method comprising: providing a structured abrasive article comprising: 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.