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Question: A Czochralski crystal is grown with an initial Sb concentration in the melt of 1 X 10¹⁶ cm^-3? Aft 80% of has the melt has been used up in pulling the crystal, pure Silicon is added to return the melt to its original volume. Growth is then resumed. What Will the Sb concentration be in the crystal after 50% of the new melt has been consumed by growth? Assume k₀, = 0.02 for Sb.

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