Patent ID: 7121926
Filing Date: 2006-10-17
Classification: B24B,B24D,Y10T

Abstract:
1. A planarization method comprising: providing a semiconductor substrate or substrate assembly including at least one region of a platinum-containing surface having a nonplanar topography; providing a fixed abrasive article; providing a planarization composition at an interface between the at least one region of platinum-containing surface and the fixed abrasive article; and planarizing the at least one region of platinum-containing surface with the fixed abrasive article to remove platinum-containing material; wherein the fixed abrasive article comprises a plurality of abrasive particles having a hardness of no greater than about 6.5 Mohs dispersed within a binder adhered to at least one surface of a backing material; wherein the rate of removal of the platinum-containing material is greater than the rate of removal of material from a generally planar surface of the same material under the same conditions.