||This is observed in Zener diodes having Vz 5 to 8 volts.
||This is observed in Zener diodes having Vz greater than 8 volts.
||The valence electrons are pulled into conduction due to very intense electric field appearing across the narrow depletion region.
||The valence electrons are pushed into conduction band due to the energy imparted by colliding accelerated minority carries.
||V-I characteristics with Zener the break down is very sharp.
||The V-I characteristics with the avalanche breakdown increases gradually. It is not as sharp as that with the Zener breakdown.
||The breakdown voltage decreases with increase in temperature.
||The breakdown voltage increases with increase in temperature.