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Process for determination of concentrations of metal impurities in Czochralski single crystal silicon

机译:测定直拉单晶硅中金属杂质浓度的方法

摘要

In the Czochralski method comprising charging polycrystalline silicon in a quartz crucible, heating and melting the polycrystal, immersing a seed single crystal in the melt, pulling the single crystal from the melt as single crystal silicon, a process for determination of concentrations of metal im­purities in Czochralski single crystal silicon, wherein the solidification ratio of the single crys­tal silicon is maintained at a level of at least 95% and the analysis is effected on the residual melt left in the quartz crucible.
机译:在切克劳斯基(Czochralski)方法中,包括在石英坩埚中装入多晶硅,加热和熔化多晶,将晶种单晶浸入熔体中,从熔体中拉出单晶作为单晶硅,这是确定硅中金属杂质浓度的过程。切克劳斯基单晶硅,其中单晶硅的固化率保持在至少95%的水平,并且分析是留在石英坩埚中的残留熔体。

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