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Composition of Carbon Clusters in Implanted Silicon Using Atom Probe Tomography

Abstract : Atom probe tomography was employed to observe and derive the composition of carbon clusters in implanted silicon. This value, which is of interest to the microelectronic industry when considering ion implantation defects, was estimated not to exceed 2 at%. This measurement has been done by fitting the distribution of first nearest neighbor distances between monoatomic carbon ions (C + and C 2+ ). Carbon quantification has been considerably improved through the detection of molecular ions, using lower electric field conditions as well as equal proportions of 12 C and 13 C. In these conditions and using another quantification method, we have shown that the carbon content in clusters approaches 50 at%. This result very likely indicates that clusters are nuclei of the SiC phase.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-03468019
Contributor : Didier Blavette Connect in order to contact the contributor
Submitted on : Monday, December 6, 2021 - 7:03:54 PM
Last modification on : Friday, December 2, 2022 - 12:58:14 PM

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Paul Dumas, Sébastien Duguay, Julien Borrel, Fanny Hilario, Didier Blavette. Composition of Carbon Clusters in Implanted Silicon Using Atom Probe Tomography. Microscopy and Microanalysis, 2021, pp.1-4. ⟨10.1017/S1431927621012800⟩. ⟨hal-03468019⟩

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