Patent ID: 7037174
Filing Date: 2006-05-02
Classification: B24B,H01L,Y02P

Abstract:
1. A method for processing a substrate having a conductive material formed thereon, comprising: positioning the substrate in a polishing apparatus having a rotational carrier head and a rotatable platen, wherein the substrate is disposed in the rotational carrier head and the platen has a polishing article disposed thereon; rotating the carrier head at a first carrier head rotational rate and rotating the platen at a first platen rotational rate; contacting the substrate with the polishing article at a polishing pressure of less than about 2 psi; accelerating the first carrier head rotational rate to a second carrier head rotational rate and accelerating the first platen rotational rate to a second platen rotational rate; and removing a substantial portion of the conductive material from the substrate at the second carrier head rotational rate and at the second platen rotational rate.