The method used for obtaining highly pure sil | vedclass

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(D) Zone refining is the method used for obtaining metals and semiconductors in a state of high purity. In this process,a circular mobile heater is fi

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Zone refining

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(D) Zone refining is the method used for obtaining metals and semiconductors in a state of high purity. In this process,a circular mobile heater is fixed at one end of a rod of the impure metal. As the heater moves,the pure metal crystallizes out of the melt and the impurities pass into the adjacent molten zone. This process is repeated several times to obtain high-purity silicon.

The method used for obtaining highly pure silicon,which is used as a semiconductor material,is:

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