Silane activation by Ti(NMe2)4 and NH3 during chemical vapor deposition of Ti-Si-N films

被引:7
作者
Amato-Wierda, CC [1 ]
Norton, ET [1 ]
Wierda, DA [1 ]
机构
[1] Univ New Hampshire, Mat Sci Program, Durham, NH 03824 USA
关键词
D O I
10.1021/cm990174j
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Molecular beam mass spectrometry has been used to observe the activation of silane, predominantly in the gas phase, during the chemical vapor deposition of Ti-Si-N thin films using Ti(NMe2)(4), tetrakis(dimethylamido)titanium, silane, and ammonia at 450 degrees C. The extent of silane reactivity was dependent upon the relative amounts of Ti(NMe2)(4) and NH3. Ti-Si-N thin films were deposited using similar process conditions as the molecular beam experiments. RES and XPS were used to determine the atomic composition of these films. The variations of the Ti:Si ratio as a function of Ti(NMe2)(4) and NH3 flows were consistent with the changes in silane reactivity under similar conditions.
引用
收藏
页码:2775 / 2779
页数:5
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