Impurity gettering by silicon nitride films: Kinetics, mechanisms and simulation

Tien Trong Le, Ziv Hameiri, Daniel MacDonald, An Yao Liu

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The mechanisms behind the gettering effect of silicon nitride films for removing iron impurities in silicon are investigated in this study. The silicon nitride films are from plasma-enhanced chemical vapor deposition (PECVD). By monitoring the iron reduction kinetics in the silicon wafer bulk during cumulative anneals, it is found that silicon nitride gettering takes place mainly via a segregation mechanism with an activation energy of 0.9±0.1 eV for the investigated PECVD silicon nitride film.

    Original languageEnglish
    Title of host publication2021 IEEE 48th Photovoltaic Specialists Conference, PVSC 2021
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages664-665
    Number of pages2
    ISBN (Electronic)9781665419222
    DOIs
    Publication statusPublished - 20 Jun 2021
    Event48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States
    Duration: 20 Jun 202125 Jun 2021

    Publication series

    NameConference Record of the IEEE Photovoltaic Specialists Conference
    ISSN (Print)0160-8371

    Conference

    Conference48th IEEE Photovoltaic Specialists Conference, PVSC 2021
    Country/TerritoryUnited States
    CityFort Lauderdale
    Period20/06/2125/06/21

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