Patent ID: 6394883
Filing Date: 2002-05-28
Classification: B24B,B24D

Abstract:
A microelectronic substrate processing medium, comprising:a planarizing section having a first body composed of a first material, the first body having a relatively firm planarizing surface configured to engage a substrate, the first body supporting abrasive particles at the planarizing surface to remove material from the substrate during a planarizing cycle; a finishing section having a second body composed of a second material coupled to the planarizing section, the second body having a buffing surface softer than the planarizing surface, the buffing surface adapted to clean the substrate of abrasive particles and other matter during a finishing cycle; and a ridge extending along the processing medium over the planarizing and finishing sections, the ridge partitioning the processing medium to prevent the planarizing liquid on the planarizing section from mixing with a cleaning fluid on the finishing section.