Germanium effect on oxygen precipitation in Czochralski silicon

被引:35
作者
Li, H [1 ]
Yang, DR [1 ]
Ma, XY [1 ]
Yu, XG [1 ]
Que, DL [1 ]
机构
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.1790578
中图分类号
O59 [应用物理学];
学科分类号
摘要
The oxygen precipitation in germanium-doped Czochralski (GCZ) silicon has been investigated. After a prolonged annealing at 800 and 1000degreesC, it was found that the Ge-doping enhanced the formation of oxygen precipitates with a higher density and modified their morphology and size. Furthermore, the existing oxygen precipitates in the GCZ silicon were readily dissolved, because the Ge-doping facilitated the formation of smaller oxygen precipitates. Based on the facts, the mechanism for the enhancement effect of Ge-doping on oxygen precipitation has been preliminarily discussed. (C) 2004 American Institute of Physics.
引用
收藏
页码:4161 / 4165
页数:5
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