1. Write the equation for the total drift current density. Is the linear relationship between drift current density and electric field always valid? Why or why not.
1. Write the equation for the total drift current density. Is the linear relationship between drift current density and electric field always valid? Why or why not.
Related questions
Question
i need the answer quickly
Transcribed Image Text:REVIEW QUESTIONS
1. Write the equation for the total drift current density. Is the linear relationship between
drift current density and electric field always valid? Why or why not.
2. Define electron and hole mobility. What is the unit of mobility?
3. Explain the temperature dependence of mobility. Why is the carrier mobility a function
of the ionized impurity concentrations?
4. Define conductivity. Define resistivity. What are the units of conductivity and
resistivity?
5. Sketch the drift velocity of electrons in silicon versus electric field. Repeat for GaAs.
6. Write the equations for the diffusion current densities of electrons and holes.
7. What is the Einstein relation?
8. What is the direction of the induce electric field in a semiconductor with a graded donor
impurity concentration? Repeat for a graded acceptor impurity concentration.
9. Describe the Hall effect.
10. Explain why the polarity of the Hall voltage changes depending on the conductivity
type (n type or p type) of the semiconductor.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
