Patent ID: 6419555
Filing Date: 2002-07-16
Classification: B24B

Abstract:
An apparatus for the machining of a workpiece, the workpiece having an upper and lower surface, a periphery, and a thickness, the apparatus comprising:(a) a planar carrier disk comprising: (i) a first portion comprising a base plate having a thickness less than the workpiece thickness, said first portion having a serrated outer periphery and at least one aperture therein, the aperture configured and arranged to receive a second portion; (ii) the second portion comprising a plastic material and having an aperture therein, the aperture configured and arranged to receive a workpiece, wherein the second portion is in the aperture of the first portion; (iii) a first adhesive layer positioned on a first surface of the first portion and on a first surface of the second portion, wherein the adhesive layer comprises an adhesive layer on a film carrier; and (b) a polishing system comprising an abrasive source and a system for imparting relative motion between the abrasive source and the planar carrier disk.