Patent ID: 6666755
Filing Date: 2003-12-23
Classification: B24B

Abstract:
A linear belt-type chemical mechanical planarization (CMP) system, comprising:a first drum and a second drum; a belt pad having a width, a preparation surface, and an undersurface, the belt pad being disposed around the first drum and the second drum, the belt pad configured to move linearly around the first drum and the second drum, the belt pad further configured to traverse over a wafer preparation location; a platen being defined between the first drum and the second drum and inside of the belt pad, the platen providing support at the wafer preparation location; and a wiper blade disposed between the first drum and the second drum and inside of the belt pad, the wiper blade being configured to extend across width of the belt pad and to be in contact with the undersurface of the belt pad, the wiper blade being capable of removing fluid from the underside of the belt pad.