Patent ID: 6821891
Filing Date: 2004-11-23
Classification: C23C,H01L,Y10S

Abstract:
A method of forming a copper film on a substrate, comprising:sequentially introducing a source reagent and a reducing gas during a deposition cycle within a process chamber, comprising: flowing the source reagent having the chemical structure of FIG. 1 or FIG. 2, wherein R is hydrogen or methyl, Râ€² is hydrogen or an alkyl group having from one to four carbon atoms, and Râ€³ is an alkyl group having from one to four carbon atoms into the process chamber, and wherein the source reagent is substantially free of solvents and excess ligands; stopping the flow of the source reagent; purging the source reagent from the process chamber; flowing the reducing gas selected from the group of hydrogen, silane, organosilanes, ammonia, diborane, or combinations thereof into the process chamber; stopping the flow of the reducing gas; and purging the reducing gas from the process chamber.