Patent ID: 7090567
Filing Date: 2006-08-15
Classification: B24B

Abstract:
1. A method of polishing a surface comprising the step of setting into rotation at least one workpiece having at least one planar surface for polishing while pressing said planar surface against a polishing element that is driven with rotary or linear motion, wherein, throughout the duration of the polishing process, points of said planar surface of the workpiece that are situated outside a circumference of given radius of center coinciding with the center of rotation of the workpiece travel, during rotation of said workpiece, along a path comprising first and second portions, with the rate of polishing over said second portion being smaller than over said first portion, so as to compensate at least in part for the over-polishing effect that occurs on the edge of said workpiece over the first portion of the path, in which the region of the workpiece situated outside said circumference is of a width lying in the range 0.1% to 30% of the diameter or the main dimension of said workpiece.