Electronics Engineering · Semiconductor Physics
What is a primary physical distinction between Zener breakdown and Avalanche breakdown mechanisms in a p-n junction diode?
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- 1Avalanche breakdown occurs exclusively under forward bias, while Zener breakdown occurs under reverse bias.
- 2Zener breakdown occurs in highly doped junctions due to field emission, while Avalanche breakdown occurs in lightly doped junctions due to impact ionization.✓
- 3Zener breakdown occurs at much higher reverse voltages compared to Avalanche breakdown.
- 4Zener breakdown occurs due to impact ionization, while Avalanche breakdown occurs due to high internal electric field emission.
Correct answer
Zener breakdown occurs in highly doped junctions due to field emission, while Avalanche breakdown occurs in lightly doped junctions due to impact ionization.
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