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A Study of Structural Damage & Recovery of Si, Ge and Ga FIB implants in Silicon

Published online by Cambridge University Press:  09 September 2014

Prabhu Balasubramanian ,
Jeremy F. Graham  and
Robert Hull
Prabhu Balasubramanian*
Affiliation:
Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA.
Jeremy F. Graham
Affiliation:
FEI, Hillsboro, OR, 97124, USA
Robert Hull
Affiliation:
Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA.
*
a)Email: [email protected]
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Abstract

The focused ion beam (FIB) has the necessary precision, spatial resolution and control over ion delivery for potential nano-scale doping of nanostructures such as semiconductor quantum dots (QDs). The ion current density in a FIB is 0.1-10 A/cm2, which is at least three orders of magnitude higher than that in a commercial broad beam ion implanter. Therefore an understanding of FIB implantation damage and recovery is of substantial interest. In this work we employ Raman probes of wavelengths 514 nm and 405 nm for quantifying ion implantation damage—both before and after annealing—in 30 kV Si2+, Ge2+ and Ga+ implants (fluences: 1x1012-5x1015 ions/cm2) into Si(100), for the purpose of understanding the effect of ion species on damage recovery.

Keywords

ion-implantationRaman spectroscopySi
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1712: Symposium ZZ – Recent Advances in the Structural Characterization of Materials , 2014 , mrss14-1712-zz04-05
Copyright
Copyright © Materials Research Society 2014 

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References

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