Electrical properties of stacked gate dielectric (SiO2/ZrO2) deposited on strained SiGe layers

被引:17
作者
Chatterjee, S
Samanta, SK
Banerjee, HD
Maiti, CK [1 ]
机构
[1] Indian Inst Technol, Dept Elect & ECE, Kharagpur 721302, W Bengal, India
[2] Indian Inst Technol, Ctr Mat Sci, Kharagpur 721302, W Bengal, India
关键词
zirconium tetratert butoxide; chemical vapor deposition; silicon;
D O I
10.1016/S0040-6090(02)00995-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Stacked silicon and zirconium dioxide (SiO2/ZrO2) films have been deposited on strained-Si(0.91)Geo(0.09) layer at a low temperature using zirconium tetratert butoxide (ZTB) and ZTB/O-2 in a microwave plasma deposition system. Electrical properties of the as-deposited and annealed (in N-2 at 500 degreesC) samples have been measured from the high frequency capacitance-voltage, conductance-voltage and current-voltage characteristics of metal insulator semiconductor capacitor structures fabricated using the stacked dielectrics. The superiority of stacked (SiO2/ZrO2) gate dielectric is shown. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:33 / 38
页数:6
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