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Unformatted text preview: of 10 17 cm-3 . (Electron affinity in silicon is 4.0 eV.) (a) Draw the band diagram for a forward bias of 0.3 V. Label the Fermi levels. (b) Calculate the depletion layer width for the same bias as in (a). Solutions: (a) E f Bn m q = q -q = 0.7 eV E f 0.3 eV (b) 55 . ) 41 . 56 . ( 4 7 . 4 ln 2 =---= ---= i d g m bi n N q kT q E V V 057 . ) 3 . ( 2 =-= d bi si d qN V W m...
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- Spring '08