semisolex09

# semisolex09 - Semiconductor Physics and Devices Basic...

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Semiconductor Physics and Devices: Basic Principles, 3 rd edition Chapter 9 Solutions Manual Exercise Solutions 121 Chapter 9 Exercise Solutions E9.1 (a) φ Bo =− 4.5 4.01 Bo V = 049 . (b) n x x V == () F H G I K J 00259 2.8 10 310 0237 19 15 .l n . V bi 049 0237 .. VV bi = 0253 . (c) x eN n sb i R d = ∈+ R S T U V W 2 12 af / = + ( ) R S T U V W 2117 88510 0253 5 16 10 3 10 14 19 15 . . / x xx bg b gb g or c m n = 151 10 4 Then Ε max = = −− eN x x x dn s 3 10 151 10 117 8 85 10 19 15 4 14 b g b g or Ε max / = 71 0 4 xV c m (d) ′ = + R S T U V W C eN sd bi R 2 / = + R S T U V W 117 8 85 10 3 10 20253 5 19 14 15 . . / x b g b g or ′ = Cx F c m 688 10 92 ./ E9.2 (a) Bo =−⇒ 512 4.07 Bo V = 105 . (b) n x x V F H G I K J 4.7 10 0131 17 15 n V bi 105 0131 bi = 0919 . (c) x x n = + ( ) R S T U V W 2131 88510 0919 5 14 19 15 . . / b g or c m n = 169 10 4 Now Ε max = eN x x x s 3 10 131 8 85 10 19 15 4 14 b g b g b g or Ε max / = 0 4 c m (d) ′ = + R S T U V W C x 131 8 85 10 3 10 20919 5 19 14 15 . . / b g b gb g or ′ = F c m 686 10 E9.3 Ε ππ = = R S T U V W e x s 4 7 10 41 1 78 8 5 1 0 19 4 14 .

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semisolex09 - Semiconductor Physics and Devices Basic...

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