Patent ID: 6800020
Filing Date: 2004-10-05
Classification: B24B

Abstract:
A polishing pad conditioner for use in a chemical mechanical polishing (CMP) apparatus, comprising:a fixed abrasive polishing pad having an abrasive polishing surface; a web dressing media having a contact surface defined between a first point and a second point, the first point being separate from the second point, wherein the web dressing media is configured to be positioned over the fixed abrasive polishing pad such that the contact surface of the web dressing media is configured to be applied to the abrasive polishing surface of the fixed abrasive polishing pad; a pressure application plate configured to be applied against an application surface of the web dressing media that is an opposite surface to the contact surface and is defined between a first position and a second position of the application surface of the web dressing media; a feed-roll positioned above the fixed abrasive polishing pad, the feed-roll being configured to have a supply of the web dressing media, the feed-roll is positioned at about the first point; and a take-up roll positioned above the fixed abrasive polishing pad, the take-up roll being configured to collect at least a linear portion of the web dressing media, the take-up roll is positioned at about the second point, wherein the dressing media, the feed-roll, and the take-up roll define a web handling system, the web handling system being enclosed in a housing configured to rotate.