Diodes are two terminal electric components with infinite conductivity in one direction and infinite resistance in other direction .is a type of electrical breakdown in a reverse biased p-n diode in which the electric field enables tunneling of electrons from the valence to the conduction band of a semiconductor .
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Zener Breakdown | Avalanche Breakdown
In the Zener effect or Zener breakdown , the electric field enables tunneling of electrons from the valence to the conduction band of a semiconductor in a reverse biased p-n diode . Both sides of PN junction are heavily doped in zener breakdown | The avalanche breakdown occurs when carriers in the transition region are accelerated by the electric field to energies sufficient to create mobile or free electron-hole pairs via collisions with bound electrons. Both sides of PN junction are lightly doped in avalanche breakdown. Zener current is independent of applied voltage . |Charge carriers acquire energy from the applied potential . A strong electric field is produced . |Electric field produced is weak in nature . Large number of holes and electrons are produced . |Electron hole pairs are generated. Zener current is independent of applied voltage |Charge carriers acquire energy from the applied potential
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