Effect of postoxidation annealing on Si/SiO2 interface roughness

被引:5
|
作者
Chen, XD [1 ]
Gibson, JM [1 ]
机构
[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
关键词
D O I
10.1149/1.1392047
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
We use a plan-view transmission electron microscope technique to unambiguously image the "physical" interface position between Si and furnace grown SiO2 layers. The effect of postoxidation annealing on the interface roughness of Si/SiO2 was studied with this technique. While no obvious effect due to postoxidation annealing on roughness was observed for silicon (111) a postoxidation annealing at 900 degrees C dramatically removed roughness at Si(100)/SiO2 interfaces. A model was developed to explain our experimental results based on the idea of kinetic smoothening and oxidation induced roughening. Qualitative agreement has been reached. (C) 1999 The Electrochemical Society. S0013-4651(98)05-046-0. All rights reserved.
引用
收藏
页码:3032 / 3038
页数:7
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