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Growth by Low Pressure Chemical Vapor Deposition of Silicon Quantum Dots on Insulator for Nanoelectronics Devices

Published online by Cambridge University Press:  10 February 2011

T. Baron ,
F. Martin ,
P. Mur ,
C. Wyon ,
M. Dupuy ,
C. Busseret ,
A. Souifi  and
G. Guillot
T. Baron
Affiliation:
LPM, UTMR5511 CNRS, INSA – Bâtiment 502, 20 Avenue Albert Einstein, F- 69621 Villeurbanne Cedex, tbaron@sorbier.cea.fr
F. Martin
Affiliation:
Leti-CEA Technologies Avancées, 17 rue des Martyrs, F-38054 GRENOBLE Cedex
P. Mur
Affiliation:
Leti-CEA Technologies Avancées, 17 rue des Martyrs, F-38054 GRENOBLE Cedex
C. Wyon
Affiliation:
Leti-CEA Technologies Avancées, 17 rue des Martyrs, F-38054 GRENOBLE Cedex
M. Dupuy
Affiliation:
Leti-CEA Technologies Avancées, 17 rue des Martyrs, F-38054 GRENOBLE Cedex
C. Busseret
Affiliation:
LPM, UTMR5511 CNRS, INSA – Bâtiment 502, 20 Avenue Albert Einstein, F- 69621 Villeurbanne Cedex
A. Souifi
Affiliation:
LPM, UTMR5511 CNRS, INSA – Bâtiment 502, 20 Avenue Albert Einstein, F- 69621 Villeurbanne Cedex
G. Guillot
Affiliation:
LPM, UTMR5511 CNRS, INSA – Bâtiment 502, 20 Avenue Albert Einstein, F- 69621 Villeurbanne Cedex
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Abstract

We present the first comparative study of nucleation and growth of Si quantum dots on SiO2, SiOxNy and Si3N4 substrates using silane Low Pressure Chemical Vapor Deposition at low temperature (570–610°C). The samples are investigated by Atomic Force Micoscopy, Scanning Electron Microscopy, High Resolution Transmission Electron Microscopy and Spectroscopic Ellipsometry. We confirm that the chemical nature of the surface and precisely the presence of SiO bonds decreases the Si quantum dot density. By optimising the deposition parameters, a Si dot density of 1012 cm−2 can be obtained below 600°C on a pure Si3N4 surface. The influence of hydrogen, provided by silane decomposition, on the Si nucleation mechanism will be discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 571: Symposium W – Semiconductor Quantum Dots , 1999 , 37
Copyright
Copyright © Materials Research Society 2000

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References

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