Patent ID: 6602112
Filing Date: 2003-08-05
Classification: B24B

Abstract:
A method for polishing metal on a semiconductor substrate, comprising the steps of:dispensing hydrogen peroxide onto a polishing pad to prepare the polishing pad for polishing, leaving a quantity of the hydrogen peroxide on the polishing pad, polishing a surface of the metal on a semiconductor substrate by using the polishing pad and the quantity of the hydrogen peroxide and a polishing composition, removing particles of the metal from the seimiconductor substrate by said polishing, dissolving the particles of the metal in the quantity of the hydrogen peroxide, continuing to polish the surface of the metal using the polishing pad and the polishing composition until the surface is smoothed to produce reduced quantities of particles by polishing, and continuing to polish the surface of the metal using the polishing pad and the polishing composition after the hydrogen peroxide has dissipated.