Importance

Loading Importance Indicators...

Abstract

The embodiments of the invention generally relate to a method and apparatus for processing a substrate with reduced fluid consumption. Embodiments of the invention may be beneficially utilized in chemical mechanical and electrochemical mechanical polishing processes, among other processes where conservation of a processing fluid disposed on a rotating pad is desirable. In one embodiment, a processing fluid delivery arm assembly is provided that includes a nozzle assembly supported at a distal end of an arm. The nozzle assembly includes a nozzle that is adjustable to control the delivery of fluid exiting therefrom in two planes relative to the arm. In another embodiment, processing fluid in the form of electrolyte fills holes formed at least partially through the pad as they enter the wet zone, and a current is driven through the electrolyte, filling the holes between a substrate and an electrode disposed below the surface of the pad.

Loading the Abstract Image...

First Claim