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Surface-processing-enhanced copper diffusion into fluorosilicate glass

delete2001-01-01
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PRE
AI
B
Bing‐Yue Tsui
K
Kuo-Lung Fang
S
Shyh-Dar Lee
DOI:10.1149/1.1407249delete
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摘要

摘要

En 中文
This study investigated copper diffusion into processed fluorosilicate glass (FSG). It is observed that the surface process enhances the flatband voltage shift of the Cu/FSG/Si capacitor structure under bias-temperature stress. Secondary-ion mass spectroscopy analysis confirmed that the flatband voltage shift was due to Cu diffusion into the FSG film. Thermal desorption spectrometer analysis indicated that the surface damage layer took up more moisture. A surface-damage-layer-enhanced Cu ionization model was then proposed to explain the observation. The investigation concludes that the diffusion of Cu into FSG is strongly dependent on the surface condition of the FSG film. The proposed model also provides explanation for the inconsistent results reported in previous literature. (C) 2001 The Electrochemical Society.
Keyword:
LOW-KAPPA
SIOF
TECHNOLOGY
DEPOSITION
FLUORINE
STRESS
OXIDE
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期刊

Journal of the Electrochemical Society 封面图
Journal of the Electrochemical Society
IF:
3.3
论文数:
3.3W
被引数:
9.4W

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