Analysis of Ge segregation in Si using a simultaneous growth and exchange model

被引:22
作者
Godbey, DJ [1 ]
Ancona, MG [1 ]
机构
[1] USN, Res Lab, Washington, DC 20375 USA
关键词
computer simulations; germanium; heterojunctions; models of surface kinetics; photoemission (total yield); silicon; surface segregation; x-ray photoelectron spectroscopy;
D O I
10.1016/S0039-6028(97)00607-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ge segregation data is analyzed using a. simultaneous growth and exchange model in the limit of infinite surface diffusion. This model is found to predict a longer leading edger an enlarged surface Ge storage reservoir and a better temperature dependence than the previously described two-layer model. This suggests;hat surface diffusion and rearrangement plays a more important role in Ge segregation than believed heretofore. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:60 / 68
页数:9
相关论文
共 15 条
[1]   Measuring Ge segregation by real-time stress monitoring during Si1-xGex molecular beam epitaxy [J].
Floro, JA ;
Chason, E .
APPLIED PHYSICS LETTERS, 1996, 69 (25) :3830-3832
[2]   SELF-LIMITATION IN THE SURFACE SEGREGATION OF GE ATOMS DURING SI MOLECULAR-BEAM EPITAXIAL-GROWTH [J].
FUKATSU, S ;
FUJITA, K ;
YAGUCHI, H ;
SHIRAKI, Y ;
ITO, R .
APPLIED PHYSICS LETTERS, 1991, 59 (17) :2103-2105
[3]   Modeling of Ge segregation in the limits of zero and infinite surface diffusion [J].
Godbey, DJ ;
Ancona, MG .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1997, 15 (03) :976-980
[4]   CONCENTRATION-DEPENDENCE OF GE SEGREGATION DURING THE GROWTH OF A SIGE BURIED LAYER [J].
GODBEY, DJ ;
ANCONA, MG .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1993, 11 (04) :1392-1395
[5]   GE SURFACE SEGREGATION AT LOW-TEMPERATURE DURING SIGE GROWTH BY MOLECULAR-BEAM EPITAXY [J].
GODBEY, DJ ;
LILL, JV ;
DEPPE, J ;
HOBART, KD .
APPLIED PHYSICS LETTERS, 1994, 65 (06) :711-713
[6]   GE SEGREGATION DURING THE GROWTH OF A SIGE BURIED LAYER BY MOLECULAR-BEAM EPITAXY [J].
GODBEY, DJ ;
ANCONA, MG .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1993, 11 (03) :1120-1123
[7]   GE PROFILE FROM THE GROWTH OF SIGE BURIED LAYERS BY MOLECULAR-BEAM EPITAXY [J].
GODBEY, DJ ;
ANCONA, MG .
APPLIED PHYSICS LETTERS, 1992, 61 (18) :2217-2219
[8]   THE INITIAL-STAGES OF EPITAXIAL-GROWTH OF SILICON ON SI(100)-2 X-1 [J].
HEUN, S ;
FALTA, J ;
HENZLER, M .
SURFACE SCIENCE, 1991, 243 (1-3) :132-140
[9]   Ge segregation during the initial stages of Si1-xGex alloy growth [J].
Jernigan, GG ;
Thompson, PE ;
Silvestre, CL .
APPLIED PHYSICS LETTERS, 1996, 69 (13) :1894-1896
[10]   Quantitative measurements of Ge surface segregation during SiGe alloy growth [J].
Jernigan, GG ;
Thompson, PE ;
Silvestre, CL .
SURFACE SCIENCE, 1997, 380 (2-3) :417-426