Patent ID: 6162112
Filing Date: 2000-12-19
Classification: B24B

Abstract:
A chemical-mechanical polishing apparatus for polishing a workpiece, said apparatus comprising:a rotatable table having a surface for holding a workpiece to be polished;a table drive mechanism for rotating said rotatable table;a polishing tool rotatable around a rotation axis and being rectilinearly movable in an axial direction along the rotation axis;a polishing tool drive mechanism for rotating and rectilinearly moving said polishing tool, said polishing tool drive mechanism pressing said polishing tool against the workpiece to be polished at a predetermined pressure;means for supplying an abrasive material between said polishing tool and the workpiece to be polished; andforeign substance removing means for removing a foreign substance on the surface of said table, said removing means being located rotationally downstream of said table relative to said polishing tool.