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A Semiconductor Nano-Patterning Approach Using AFM-Scratching Through Oxide Thin Layers

Published online by Cambridge University Press:  11 February 2011

L. Santinacci ,
T. Djenizian  and
P. Schmuki
L. Santinacci
Affiliation:
University of Erlangen-Nuremberg, Department of Materials Science - LKO Martensstrasse 7, D-91058 Erlangen, Germany
T. Djenizian
Affiliation:
University of Erlangen-Nuremberg, Department of Materials Science - LKO Martensstrasse 7, D-91058 Erlangen, Germany
P. Schmuki
Affiliation:
University of Erlangen-Nuremberg, Department of Materials Science - LKO Martensstrasse 7, D-91058 Erlangen, Germany
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Abstract

AFM-scratching was performed through thin oxide layer which was either a native oxide layer (1.5 – 2 nm thick) or a thermal oxide layer (10 nm thick). Due to their insulating properties, the SiO2 films act as masks for the metal electrochemical deposition. In the scratched openings copper deposition can take place selectively and thus nano-scale metal lines could be successfully plated onto the p-type silicon substrates. Using particularly, if sufficiently thick thermal oxide has advantages over the native oxide, it allows a H-termination of the Si within the grooves (HF treatment) without eliminating the oxide layer on the rest of the surface.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 740: Symposium I – Nanomaterials for Structural Applications , 2002 , I7.8
Copyright
Copyright © Materials Research Society 2003

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References

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