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Novel Antimony Precursors for Low-Temperature CVD of Antimonide Thin Films

Published online by Cambridge University Press:  10 February 2011

Michael A. Todd ,
Gautam Bhandari  and
T. H. Baum
Michael A. Todd
Affiliation:
Advanced Technology Materials, Inc, ADCS Division 7 Commerce Dr., Danbury, CT 06810, USA
Gautam Bhandari
Affiliation:
Advanced Technology Materials, Inc, ADCS Division 7 Commerce Dr., Danbury, CT 06810, USA
T. H. Baum
Affiliation:
Advanced Technology Materials, Inc, ADCS Division 7 Commerce Dr., Danbury, CT 06810, USA
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Abstract

Volatile antimony precursors were synthesized for the low temperature chemical vapor deposition (CVD) of antimony thin films. The molecules synthesized include tris (trifluoromethyl)stibine, Sb(CF3)3, Lewis base adducts of Sb(CF3)3, and antimony trihydride (stibine), SbH3. Isotopie substitution of stibine with deuterium leads to a more thermally stable, carbon-free antimony source. Similarly, deuterium substitution of trimethylsilylmethyl antimony dihydride leads to a stabilized liquid antimony precursor. The molecules were characterized using FTIR, NMR and DSC / TGA. Pure antimony films were deposited at temperatures below 300 °C with growth rates approaching 170 Å / min using a low pressure hot-wall CVD reactor. The films were characterized using XRD, EDS, SEM and AFM.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 495: Symposium W – Chemical Aspects of Electronic Ceramics Processing , 1997 , 113
Copyright
Copyright © Materials Research Society 1998

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References

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