EE331 Spring 2007 Homework Assignment 2 - Prof. Aurangzeb Khan, Assignments of Electrical and Electronics Engineering

Download EE331 Spring 2007 Homework Assignment 2 - Prof. Aurangzeb Khan and more Assignments Electrical and Electronics Engineering in PDF only on Docsity! EE331 Spring 2007 Home Work # 2 Due Monday, February 26, 2006 1. Determine the total number of energy states in silicon between Ec and Ec+kT at T=300K. 2. Determine the total number of energy states in silicon between Ev and Ev-kT at T=300K. 3. Assume the Fermi Energy Level in 0.30eV below the conduction band energy. (a) Determine the probability of a state being occupied by an electron at Ec. (b) Repeat part (a) for an energy state at Ec+kT. Assume T=300K. 4. Assume that Fermi energy level in 0.35 eV above the valance band energy. (a) Determine the probability of a state being empty of an electron at EV.(b) Repeat part (a) for an energy sate at EV-kT. Assume T=300K. 5. Text book problem 2.16 6. Text Book Problem 2.17 7. Calculate the position of the Fermi level in n-type Si at T=300K with respect to the intrinsic Fermi energy level. The doping concentration are Nd=2 x 1017 /cm3 and Na=3 x 1016/cm3.