High resolution depth profiling of nitrogen in A1N layers

Research output: Contribution to journalArticle

Abstract

Nitrogen implantation into aluminum offers many industrial applications. It has already been observed that the shape and the thickness of the layer formed depend strongly on the implantation doses for a given energy. The aim of this work is to investigate the atomic movements of nitrogen during implantation which leads to the formation of the aluminum nitride layer. Resonant nuclear reaction analysis (RNRA) allows for the profiling of both stable nitrogen isotopes (N and N) by means of the N(p,αγ)C reaction at 429 keV and the N(α,γ)F reaction at 1531 keV. Therefore, 100 keV N and 100 keV N were alternatively implanted into aluminum, and the behavior of each isotope was followed using the appropriate nuclear reaction. The results indicate that some of the nitrogen atoms already present in the matrix are displaced and moved out the sample by the incident nitrogen atoms during the implantation. Consequently, the distribution of the original isotope is broadened due to the collisional processes occuring when nitrogen doses increase.
Original languageEnglish
Pages (from-to)262-266
Number of pages5
JournalNuclear instruments and methods in physics research B
Volume66
Issue number1-2
Publication statusPublished - 2 Mar 1992

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Depth profiling
implantation
Nitrogen
nitrogen
high resolution
nuclear reactions
nitrogen atoms
Isotopes
Nuclear reactions
isotopes
nitrogen isotopes
aluminum
dosage
aluminum nitrides
Aluminum
Atoms
Aluminum nitride
Ion implantation
Industrial applications
matrices

Cite this

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title = "High resolution depth profiling of nitrogen in A1N layers",
abstract = "Nitrogen implantation into aluminum offers many industrial applications. It has already been observed that the shape and the thickness of the layer formed depend strongly on the implantation doses for a given energy. The aim of this work is to investigate the atomic movements of nitrogen during implantation which leads to the formation of the aluminum nitride layer. Resonant nuclear reaction analysis (RNRA) allows for the profiling of both stable nitrogen isotopes (N and N) by means of the N(p,αγ)C reaction at 429 keV and the N(α,γ)F reaction at 1531 keV. Therefore, 100 keV N and 100 keV N were alternatively implanted into aluminum, and the behavior of each isotope was followed using the appropriate nuclear reaction. The results indicate that some of the nitrogen atoms already present in the matrix are displaced and moved out the sample by the incident nitrogen atoms during the implantation. Consequently, the distribution of the original isotope is broadened due to the collisional processes occuring when nitrogen doses increase.",
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High resolution depth profiling of nitrogen in A1N layers. / Terwagne, G.; Lucas, S.; Bodart, F.

In: Nuclear instruments and methods in physics research B, Vol. 66, No. 1-2, 02.03.1992, p. 262-266.

Research output: Contribution to journalArticle

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AB - Nitrogen implantation into aluminum offers many industrial applications. It has already been observed that the shape and the thickness of the layer formed depend strongly on the implantation doses for a given energy. The aim of this work is to investigate the atomic movements of nitrogen during implantation which leads to the formation of the aluminum nitride layer. Resonant nuclear reaction analysis (RNRA) allows for the profiling of both stable nitrogen isotopes (N and N) by means of the N(p,αγ)C reaction at 429 keV and the N(α,γ)F reaction at 1531 keV. Therefore, 100 keV N and 100 keV N were alternatively implanted into aluminum, and the behavior of each isotope was followed using the appropriate nuclear reaction. The results indicate that some of the nitrogen atoms already present in the matrix are displaced and moved out the sample by the incident nitrogen atoms during the implantation. Consequently, the distribution of the original isotope is broadened due to the collisional processes occuring when nitrogen doses increase.

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