Patent ID: 8501275
Filing Date: 2013-08-06
Classification: C23C,H01L

Abstract:
1. A method for depositing a noble metal, the method comprising: contacting a substrate in a reaction chamber comprising quartz walls with a vapor phase reactant comprising a metal halide or metal organic reactant thereby forming a surface termination comprising the metal halide or metal organic on the substrate, wherein the vapor phase reactant does not comprise a noble metal, wherein the substrate and the chamber walls are at the same temperature and wherein the temperature is selected such that the halide or metal organic reacts with the substrate surface but not with the reaction chamber walls; removing excess vapor phase reactant; and depositing noble metal on the surface termination comprising the metal halide or metal organic in the quartz reaction chamber by an atomic layer deposition (ALD) process by providing a noble metal reactant and an oxygen reactant.