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IR and MW Absorption Techniques for Bulk and Surface Recombination Control in High-Quaiity Silicon

Published online by Cambridge University Press:  15 February 2011

A. Kaniava ,
U. Menczigar ,
J. Vanhellemont ,
J. Poortmans ,
A. L. P. Rotondaro ,
E. Gaubas ,
J. Vaitkus ,
L. KÖster  and
D. Graf
A. Kaniava
Affiliation:
Vilnius University, Sauletekio 10, 2054 Vilnius, Lithuania IMEC, Kepeldreef 75, B-3001 Leuven, Begium
U. Menczigar
Affiliation:
Institute of Semiconductor Physics, Walter-Korsing Straβe 2, 15230 Frankfurt (Oder), Germany
J. Vanhellemont
Affiliation:
IMEC, Kepeldreef 75, B-3001 Leuven, Begium
J. Poortmans
Affiliation:
IMEC, Kepeldreef 75, B-3001 Leuven, Begium
A. L. P. Rotondaro
Affiliation:
IMEC, Kepeldreef 75, B-3001 Leuven, Begium
E. Gaubas
Affiliation:
Vilnius University, Sauletekio 10, 2054 Vilnius, Lithuania
J. Vaitkus
Affiliation:
Vilnius University, Sauletekio 10, 2054 Vilnius, Lithuania
L. KÖster
Affiliation:
Wacker-Chemitronic GmbHA, P.O. Box 1140, D-84479 Burghausen, Germany
D. Graf
Affiliation:
Wacker-Chemitronic GmbHA, P.O. Box 1140, D-84479 Burghausen, Germany
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Abstract

The carrier recombination rate in high-quality FZ and Cz silicon substrates is studied by contactless infrared and microwave absorption techniques. Different surface treatments covering a wide range of surface recombination velocity have been used for the separation of bulk and surface recombination components and evaluating of the efficiency of passivation. Limitations of effective lifetime approach are analyzed specific for low and high injection level. Sensitivity limits of the techniques for iron contamination are discussed

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References

REFERENCES

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