semisolex08

# semisolex08 - Semiconductor Physics and Devices Basic...

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Semiconductor Physics and Devices: Basic Principles Chapter 8 Solutions Manual Exercise Solutions 97 Chapter 8 Exercise Solutions E8.1 p n N x x xc m no i d == = 2 10 2 16 33 15 10 510 4.5 10 . b g Then px x nn af =⇒ F H I K 4.5 10 061 00259 3 exp . . x c m a f = 7.62 10 13 3 Also n n N x x m po i a = 2 10 2 16 43 21 0 1125 10 . . bg Then nx x pp −= F H I K b g 4 .e x p . . x c m b g 190 10 14 3 . E8.2 The maximum minority carrier concentration will occur on the low-doped side. pN x c m nd max () =⋅ = 10% 5 10 14 3 p n N x x m no i d = 2 10 2 15 4.5 10 . b g Then 4 . 14 4 xx V a = F H I K exp . or V x x a = F H G I K J 4.5 10 14 4 .l n or VV V aa max . 0599 E8.3 c m n max = 14 3 p n N x x m no i d = −− 2 6 2 15 18 10 648 10 . . Then 5 10 6 48 10 14 4 V a = F H I K x p . which yields V max . 1067 E8.4 (a) IA en N DV V n i a n no a t F H G I K J 2 τ exp 10 16 10 15 10 3 19 10 2 16 b gb g .. x × F H I K 25 0625 7 x exp . . or Ix A m A n 154 10 0154 4 (b) en N D V V p i d p po a t F H G I K J 2 exp 10 15 10 110 3 19 10 2 16 b gb g x × F H I K 10 10 7 exp . . or A m A p 109 10 109 3 (c) II I Total n p =+ or Im A Total = 124 . E8.5 (a) I x n 10 18 10 3 19 6 2 16 b gb g × F H I K 25 7 x exp . . or A n = 0204 . (b) I x p 10 3 19 6 2 16 b gb g × F H I K 10 10 7 exp . . or

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Semiconductor Physics and Devices: Basic Principles Chapter 8 Solutions Manual Exercise Solutions 98 Im A p = 144 .
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semisolex08 - Semiconductor Physics and Devices Basic...

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