Diffusion behavior of dual capping layers in TiN/LaN/AlN/HfSiOx/Si stack
Diffusion behavior of dual capping layers in TiN/LaN/AlN/HfSiOx/Si stack
复制标题
TiN/LaN/AlN/HfSiOx/Si 叠层中双覆盖层的扩散行为
DOI:
10.1063/1.3643517
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发表时间:
2011-09
影响因子:
4
通讯作者:
肖志松
中科院分区:
文献类型:
--
作者:
肖志松
The diffusion behavior and interlayer interactions in the LaN/AlN dual capping layers of TiN/LaN/AlN/HfSiOx/Si stacks are investigated. Depth profiling and chemical state analysis performed after partial removal of the TiN gate indicate that Al-O replaces Al-N forming an Al-O dipole layer between the TiN and high-k layer after annealing. Meanwhile, La diffuses into HfSiOx and the La-based dipole is controlled by suppression of O diffusion to the bottom layer. Our results reveal that the properties of the TiN/LaN/AlN/HfSiOx/Si stack can be improved significantly by the dual capping layers.
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影响因子:
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影响因子:
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影响因子:
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