1987
DOI: 10.1051/rphysap:01987002207066300
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Role of oxygen in surface segregation of metal impurities in silicon poly-and bicrystals

Abstract: 2014 Nous avons caractérisé, au moyen des méthodes d'analyse des surfaces, les impuretés métalliques situées sur des rubans de silicium polycristallin. L'oxygène et les traitements thermiques semblent une force motrice pour la ségrégation superficielle de ces impuretés. Pour mieux étudier leur influence et leurs possibilités en terme d'effet getter, nous avons initié des études de modélisation sur des bicristaux de type Czochralski. Nous avons étudié deux facteurs principaux de ségrégation superficielle : le r… Show more

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Cited by 2 publications
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“…They explained the results with an iron oxygen vacancy complex. A quite similar effect of oxygen induced segregation of metals into the phosphorus doped layer was proposed by Amarray et al 19 Phosphosilicate glass (PSG) is discussed as another possible sink for iron. 20,21 To summarize, the proposed models explain single PDG experiment, but the exact gettering mechanism is still unclear.…”
supporting
confidence: 63%
“…They explained the results with an iron oxygen vacancy complex. A quite similar effect of oxygen induced segregation of metals into the phosphorus doped layer was proposed by Amarray et al 19 Phosphosilicate glass (PSG) is discussed as another possible sink for iron. 20,21 To summarize, the proposed models explain single PDG experiment, but the exact gettering mechanism is still unclear.…”
supporting
confidence: 63%