Patent ID: 6331139
Filing Date: 2001-12-18
Classification: B24B,B24D

Abstract:
A support pad for supporting a polishing pad of a web-format planarizing apparatus relative to a microelectronic substrate during planarization of the microelectronic substrates, the support pad comprising an elongated movable pad body having a first surface facing toward the polishing pad when the support pad is installed on the planarizing apparatus and a second surface facing opposite the first surface, the first surface including a first portion contacting the polishing pad and a second portion spaced apart from the polishing pad when the support pad is installed on the planarizing apparatus and the polishing pad moves relative to the support pad, and a platen attached to the pad body, the platen further comprising an elongated flexible sheet that is generally incompressible in a direction generally perpendicular to at least one of the first and second surfaces of the pad body.