setTitle('The Transistor'); ?> setMetaDescription('Physics, Transistor, Semiconductor, Nobel, Prize, Laureate, Educational'); ?> printHeader(); ?>

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			Doping Semiconductors can change their electrical properties, degree of conduction, by the addition of impurities. This is the reason why silicon needs to be in such a pure form (99.9999% pure). The procedure in which you add impurities to a semiconductor is called doping. The impurities that are used are called dopants. There are two different types of dopants. They are called n-type and p-type dopants.

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