Patent ID: 6303391
Filing Date: 2001-10-16
Classification: C23C,H01L

Abstract:
A method of depositing bismuth or a bismuth-containing film on a substrate from a precursor therefor, comprising vaporizing a bismuth .beta.-diketonate precursor to form a vaporized precursor, and contacting the vaporized precursor with the substrate to deposit bismuth or a bismuth-containing film thereon, wherein the bismuth .beta.-diketonate precursor comprises tris (.beta.-diketonate) bismuth whose .beta.-diketonate moiety is selected from the group consisting of:2,2,6,6-tetramethyl-3,5-heptanedionato1,1,1 -trifluoro-2,4-pentanedionato;1,1,1,5,5,5-hexafluoro-2,4-pentanedionato;6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato;2,2,7-trimethyl-3,5-octanedionato;1,1,1,5,5,6,6,7,7,7decafluoro-2,4-heptanedionato; and1,1,1-trifluoro-6-methyl-2,4-heptanedionato.