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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     
  semiconduction      n  

compensated semiconductor  
      n     (Physics)   a semiconductor in which donors and acceptors are related in such a way that their opposing electrical effects are partially cancelled  
intrinsic semiconductor  
      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)    i-type semiconductor  
i-type semiconductor  
      n      another name for       intrinsic semiconductor  
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