Influence of in-situ Boron Doping on the Surface Roughening of SiGe:B Films

被引:1
|
作者
Tsuchida, R. [1 ]
Mori, S. [2 ]
Sato, T. [2 ]
Uchitomi, N. [1 ]
Mizushima, I. [2 ]
机构
[1] Nagaoka Univ Technol, Dept Elect Engn, 1603-1 Kamitomioka, Niigata 9402188, Japan
[2] Semicond Co, Toshiba Corp, Proc & Mfg Engn Ctr, Yokohama, Kanagawa 2358522, Japan
关键词
D O I
10.1149/1.2986781
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Selective epitaxial growth of B-doped SiGe (SiGe:B) films is one of the key techniques for the embedded SiGe (e-SiGe) structure for high-performance pMOSFETs. Both the high Ge composition and the high B-doping concentration are desirable for increasing the stress in the channel region and decreasing the series resistance in the source/drain region. However, increasing Ge composition and B concentration may lead to defects in the epitaxial SiGe:B layer and thus to the roughening of the surface of the films. In this work, influence of B doping on the surface roughness and the roughening process in SiGe:B epitaxial films are examined.
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收藏
页码:267 / +
页数:2
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