Zener
Breakdown
|
Avalanche
Breakdown
|
The doping in the formation of P-N junction is
High.
|
The doping in the formation of P-N
Junction is low.
|
The phenomenon is caused by tunneling or field emission.
In this the covalent bonds break spontaneously.
|
The phenomenon is caused by impact ionization and avalanche
multiplication.
The covalent bonds break as a result of collision of electrons and
holes with the valence electrons.
|
Low reverse potential is required for
breakdown
|
Higher reverse potential is required
for breakdown.
|
In this the covalent bonds near the junction break due to high
reverse potential ~20 V and consequently electrons become free.
|
In this the thermally generated electrons due to electric field
ionize other atoms and release electrons.
|
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Monday, February 12, 2018
Zener and Avalanche Breakdown
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Thank you for this comparison table.
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