Patent ID: 7537804
Filing Date: 2009-05-26
Classification: C23C,H01L

Abstract:
1. A method of forming a material over a substrate, the method comprising utilization of at least one iteration of an ALD pulse sequence comprising the pulse subsets M 2 -M 1 -R- and M 1 -(R-M 2 -) x ; where x is at least 2; where M 1 is a first metal-containing precursor comprising a first metal, M 2 is a second metal-containing precursor comprising a second metal different from the first metal, and R is a reactant which reacts with one or both of the first and second metals; where the material formed over the substrate comprises the first and second metals; where at least a portion of the material is product from reaction of the reactant with one or both of the first and second metals; and where the hyphen between pulses means that the second pulse directly follows the first pulse, with the term “directly follows” indicating that the second pulse either immediately follows the first pulse or that only a purge separates the first and second pulses.