1 a substance, such as germanium or silicon, that has an electrical conductivity that increases with temperature and is intermediate between that of a metal and an insulator, The behaviour may be exhibited by the pure substance (intrinsic semiconductor) or as a result of impurities (extrinsic semiconductor)
a a device, such as a transistor or integrated circuit, that depends on the properties of such a substance
b (as modifier) a semiconductor diode
n (Physics) a semiconductor in which donors and acceptors are related in such a way that their opposing electrical effects are partially cancelled
n an almost pure semiconductor to which no impurities have been added and in which the electron and hole densities are equal at thermal equilibrium, (Also called)
n another name for →
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