Patent ID: 7572173
Filing Date: 2009-08-11
Classification: B24B,Y10T

Abstract:
1. A polishing apparatus comprising: a polishing head for releasably holding a first polishing pad that is clamped by a clamping device having first and second clamping elements; the first clamping element, comprising; the second clamping element, comprising: wherein during polishing the first polishing pad is attached flatly with the bottom surface of the polishing head for polishing an article, the first clamping element and the second clamping element clamp the first polishing pad and are fastened on the periphery of the polishing head; wherein when the first polishing pad needs replacing, the first clamping element and the second clamping element are released from the polishing head such that the first polishing pad will be disconnected from the bottom surface of the polishing head and replaced by a second polishing pad.