(Solved): b. (Drift Current) Plot the current density in the integrated resistor shown below as a function o ...

b. (Drift Current) Plot the current density in the integrated resistor shown below as a function of \( N_{A} \). Assume the parameters indicated below: - Semiconductor: silicon - \( 1015 \leq N A \leq 1020(\mathrm{~cm}-3) 1015 \leq \mathrm{NA} \leq 1020 \mathrm{~cm}-3 \) - \( N D=8 \times 1018(\mathrm{~cm}-\underline{\underline{3}) \mathrm{ND}}=8 \times 1018 \mathrm{~cm}-3 \) - Bias across resistor: \( V=5(V) \mathrm{V}=5(\mathrm{~V}) \) - \( L=15 \times 10-4 \mathrm{cmL}=15 \times 10-4 \mathrm{~cm} \) - \( W=2 \times 10-4 \mathrm{~cm} W=2 \times 10-4 \mathrm{~cm} \) - \( t=1 \times 10-4 \mathrm{~cm} \mathrm{t}=1 \times 10-4 \mathrm{~cm} \) - \( T=300 K \mathrm{~T}=300 \mathrm{~K} \) Result: Fig 1. The current density in an integrated resistor as a function of impurity concentration. Please explain the observations and conclusion