Patent ID: 8334015
Filing Date: 2012-12-18
Classification: C23C

Abstract:
1. A combinatorial deposition method of forming material upon a substrate, the method comprising: concurrently providing a first plurality of flows of differing fluids to corresponding portions of a showerhead; flowing the plurality of flows of differing fluids over the substrate to form a radially axisymmetric flow pattern over a surface of the substrate, wherein isolated regions of the surface of the substrate are concurrently exposed to different portions of the radially axisymmetric flow pattern; providing a substantially uniform conductance around a periphery of the substrate; providing a plurality of flows of a substantially uniform fluid to corresponding portions of the showerhead; depositing a substantially uniform material layer from flows of the substantially uniform fluid over multiple isolated regions of the substrate; and modifying a spatial relationship between the flow pattern of the fluid volume and the isolated regions to change an exposure of at least one of the isolated regions while maintaining the showerhead stationary and wherein providing the substantially uniform conductance includes evacuating the plurality of flows of differing fluids from a surface below the substrate.