Freistellenbeherrschendes Silizium mit niedriger Fehlerdichte

The present invention relates to a process for the preparation of single crystal silicon, in ingot or wafer form, which contains an axially symmetric region in which vacancies are the predominant intrinsic point defect and which is substantially free of agglomerated vacancy intrinsic point defects.

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Bibliographische Detailangaben
Hauptverfasser: MCQUAID, SEAMUS A, MUTTI, PAOLO, FALSTER, ROBERT, MARKGRAF, STEVE A, HOLZER, JOSEPH C, JOHNSON, BAYARD K
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:The present invention relates to a process for the preparation of single crystal silicon, in ingot or wafer form, which contains an axially symmetric region in which vacancies are the predominant intrinsic point defect and which is substantially free of agglomerated vacancy intrinsic point defects.