What do you mean by zener breakdown and avalanche breakdown?
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Answer Posted / kumud
Avalanche break down:-
If both p-side and n-side of the diode are lightly doped,
depletion region at the junction widens. Application of a very large electric field at the
junction may rupture covalent bonding between electrons. Such rupture leads to the
generation of a large number of charge carriers resulting in avalanche multiplication.
Zener break down:-
If both p-side and n-side of the diode are heavily doped,
depletion region at the junction reduces. Application of even a small voltage at the
junction ruptures covalent bonding and generates large number of charge carriers.
Such sudden increase in the number of charge carriers results in zener mechanism
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