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Questions and Answers
What is the direction of the electric field in the depletion region of a pn junction?
What is the direction of the electric field in the depletion region of a pn junction?
- Perpendicular to the metallurgical junction
- From the n region to the p region (correct)
- From the p region to the n region
- Zero, as there is no electric field
What is the primary function of the built-in potential barrier in a pn junction?
What is the primary function of the built-in potential barrier in a pn junction?
- To reduce the space charge width
- To increase the junction capacitance
- To maintain thermal equilibrium and hold back majority carrier electrons and holes (correct)
- To increase the electric field in the depletion region
What happens to the potential barrier in a pn junction when a reverse-biased voltage is applied?
What happens to the potential barrier in a pn junction when a reverse-biased voltage is applied?
- It decreases
- It remains the same
- It increases (correct)
- It becomes zero
What is the term for the change in charge with voltage in a pn junction?
What is the term for the change in charge with voltage in a pn junction?
What is the characteristic of the space charge region in a pn junction?
What is the characteristic of the space charge region in a pn junction?
What is the primary condition for avalanche breakdown to occur in a pn junction?
What is the primary condition for avalanche breakdown to occur in a pn junction?
What is the primary factor that determines the breakdown voltage in a one-sided pn junction?
What is the primary factor that determines the breakdown voltage in a one-sided pn junction?
What type of doping profile is used to obtain specific capacitance characteristics in a pn junction?
What type of doping profile is used to obtain specific capacitance characteristics in a pn junction?
What is the characteristic of a hyperabrupt junction?
What is the characteristic of a hyperabrupt junction?
What type of diodes are hyperabrupt junctions advantageous in?
What type of diodes are hyperabrupt junctions advantageous in?
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