practice_Exam+_1

practice_Exam+_1 - ECE 3040 Microelectronic Circuits...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE 3040 Microelectronic Circuits Practice Exam 1 Multiple Choice and True/False (Circle the letter of the most correct answer, 20%) 1.) (2-points) True or False: In equilibrium, an electric field can NOT exist, otherwise a current would have to flow. 2.) (2-points) True or False: An intrinsic material has equal concentrations of electrons and holes. 3.) (2-points) True or False: To obtain a p-type elemental group four semiconductor, you need to dope with an element group five of the periodic table. 4.) (2-points) True or False: In equilibrium, if the electron density is increased by doping, the hole density must also increase to maintain charge balance. Select the best answer for 5-8: 5.) (3-points) The probability that a state is UNOCCUPIED is given by: a.) The Fermi-Dirak integral of order 1/2 b.) The fermi-distribution function c.) The density of states function d.) (1-f(E)) where f(E)=the fermi-distribution function 6.) (3-points) The following energy band diagram indicates the material is: a.) p-type E c b.) n-type E i =E f c.) intrinsic d.) Silicon E v 7.) (3-points) For to the following band diagram, what is known from the information given:
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 7

practice_Exam+_1 - ECE 3040 Microelectronic Circuits...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online