1970
DOI: 10.1080/00337577008235053
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Enhanced diffusion in ion implanted silicon

Abstract: Concentration profiles of 20 keV ion implanted antimony into silicon single crystals are measured by radioactivation analysis and the enhanced diffusion of antimony is observed. The concentration profiles and the diffusion coefficient of antimony are found to be independent of temperature over the range between 500 and 800°C during ion implantation. The enhancement of diffusion during annealing after room temperature ion implantation is the same as that during high temperature ion implantation. The diffusion c… Show more

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Cited by 17 publications
(3 citation statements)
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References 9 publications
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“…This value is only about an order of magnitude higher with respect to the diffusion coefficient obtained from extrapolation of the values measured at higher temperatures in radiation damage free silicon [16]. From our results there is no evidence of a temperature independent enhanced diffusion coefficient as it has been observed for antimony implants [17]- [19]. Both these results seem to support an hypothesis of absence of enhanced diffusion in low dose arsenic implants.…”
Section: Enhanced Diffusionsupporting
confidence: 58%
“…This value is only about an order of magnitude higher with respect to the diffusion coefficient obtained from extrapolation of the values measured at higher temperatures in radiation damage free silicon [16]. From our results there is no evidence of a temperature independent enhanced diffusion coefficient as it has been observed for antimony implants [17]- [19]. Both these results seem to support an hypothesis of absence of enhanced diffusion in low dose arsenic implants.…”
Section: Enhanced Diffusionsupporting
confidence: 58%
“…3 The diffusion coefficient of Ar in the tail region was determined by fitting the concentration profile with the analytical solution of the diffusion equation derived in Ref. 4. The effective diffusion coefficient at T imp ϭ1000 °C was estimated to be (4.4Ϯ0.5)ϫ10 Ϫ13 cm 2 /s.…”
Section: Resultsmentioning
confidence: 99%
“…Ces auteurs avaient pour but d'obtenir des renseignements sur le comportement dynamique des défauts dans le domaine des hautes températures : création, énergie de migration, « longueur de diffusion », interaction des défauts avec les impuretés ou avec d'autres défauts (amas, dislocations), mécanisme de disparition des défauts. Des travaux portant sur l'accélération de la diffusion dans le silicium sous bombardement d'ions de plus faible énergie ont été effectués par la suite par Itoh [5] et al, Nelson, Gibbons et Johnson 161, Tsuchimoto et Tokuyama [7], Namba et al [8]. De plus, Oldham [9] a étudié la diffusion accélérée dans le silicium sous un bombardement de neutrons.…”
unclassified