Patent ID: 9145612
Filing Date: 2015-09-29
Classification: C23C

Abstract:
1. A method of depositing an aluminum alloy film by atomic layer deposition (ALD), the method comprising: exposing a substrate surface to a metal halide precursor comprising a metal halide selected from TiCl purging metal halide; exposing the metal halide at the substrate surface to an alkyl aluminum precursor comprising one or more of dimethyaluminum hydride, diethylhydridoaluminum, methyldihydroaluminum, or an alkyl aluminum hydrides of the formula [(CxHy) exposing the substrate surface to an alane-containing precursor comprising one or more of dimethylethylamine alane, methylpyrrolidinealane, di(methylpyrolidine)alane, or a compound having formula wherein each R is independently C1-C6, to provide an aluminum alloy film consisting essentially of TiAl, TaAl, or HfAl, and less than 10% carbon.