Test questions

1. How are materials distinguished with reference to conduction?

2. Which process is called generation of charge carrier couples?

3. Why is current in semiconductors formed by electron and hole motions, and in metal by electron motion only?

4. Why are electronic devices made of extrinsic semiconductors?

5. What are the reasons for charge carriers diffusion and drift?

6. What kind of processes does a p-n junction have in an equilibrium state?

7. What are the forward and reverse connections of external voltage applied to p-n junction?

8. What is a rectifying contact?

9. How is saturation reverse current formed?

CHAPTER 3. Semiconductor diodes

Structure and properties of semiconductor diodes