Polishing pad, method of polishing and polishing apparatus

A polishing pad according to the invention comprises a pad body having a polishing surface and a support surface and a plurality of hole apertures extending from the polishing surface to the support surface, each of the plurality of apertures having a noncircular shaped opening oriented at a predete...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	NAKAGAWA YASUTADA,KOIKE EIJIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS DRESSING OR CONDITIONING OF ABRADING SURFACES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS GRINDING MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING PERFORMING OPERATIONS POLISHING SEMICONDUCTOR DEVICES TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING
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Beschreibung
Zusammenfassung:	A polishing pad according to the invention comprises a pad body having a polishing surface and a support surface and a plurality of hole apertures extending from the polishing surface to the support surface, each of the plurality of apertures having a noncircular shaped opening oriented at a predetermined angle with respect to a radial direction of the polishing pad.