Chapter 1, Problem 1.2TYU

(a) Consider silicon at $T=300\text{K}$ . Assume that ${\mu }_n=1350{\text{cm}}^{\text{2}}\text{/V}-\text{s}$ and ${\mu }_p=480{\text{cm}}^{\text{2}}\text{/V}-\text{s}$ . Determine the conductivity and resistivity if (a) $N_a=2\times {10}^{15}{\text{cm}}^{-3}$ and (b) $N_d=2\times {10}^{17}{\text{cm}}^{-3}$ . (Ans. (a) $\sigma \text{=0}\text{.154}{\left(\Omega -\text{cm}\right)}^{-1}$ , $\rho =6.51\Omega -\text{cm}$ ; (b) $\sigma \text{=43}\text{.2}{\left(\Omega -\text{cm}\right)}^{-1}$ , $\rho =0.0231\Omega -\text{cm}$ ).