What Is Semiconductor Device?
A semiconductor is a substance, and normally it is in solid chemical or compound form. The main property of semiconductor is that it can pass the electricity under certain conditions. The semiconductor’s conductance varies and it totally depends on the current and voltage applied to a control electrode, visible light, Ultraviolet or X rays, or intensity of irradiation by infra-red. The common semiconductor compounds include indium antimonide, gallium arsenide, and the oxides of most metals. Different semiconductors are used in different situations e.g. gallium arsenide is mostly used in low noise, high gain etc. Elemental semiconductors include arsenic, carbon, germanium, silicon, antimony, selenium, and tellurium. Among these the silicon is most commonly known used in integrated circuits (ICs).
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