THERMAL MANAGEMENT WITH FILLED POLYMERIC POLISHING PADS AND APPLICATIONS THEREFOR

• Main Authors: YOKLEY, EDWARD, M, OBENG, YAW, S
• Format: Patent
• Language: English; French
• Published: 25.09.2003
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; PERFORMING OPERATIONS; POLISHING; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TOOLS FOR GRINDING, BUFFING, OR SHARPENING; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention is directed, in general, to a method of planarizing a surface on a semiconductor wafer and, more specifically, to a method of altering the properties of polishing pads to improve thermal management during chemical-mechanical planarization, the resulting heat conductive pad and a polishing apparatus that includes the pad. The pad includes a polishing body composed of a thermoconductive polymer comprising an substrate and filler particle containing a Group II salt and within the substrate. La présente invention concerne, de manière générale, un procédé de planarisation d'une surface sur une plaquette à semi-conducteurs et, plus particulièrement, un procédé de modification des propriétés de tampons de polissage pour améliorer la gestion thermique au cours de la planarisation chimio-mécanique, le tampon thermoconducteur ainsi obtenu et un appareil de polissage qui comprend ledit tampon. Ledit tampon comprend un corps de polissage constitué d'un polymère thermoconducteur présentant un substrat à particules de charge contenant un sel du groupe II.