What do you mean by zener breakdown and avalanche breakdown?

Answer Posted / keshav bansal

zener breakdown is occur in thin junction which is heavily
doped.when there is an increase in reverse current there is
a strong electric field which is due to the electrons come
across the junction and enough to exert the force on
covalent bonds than there is a inc in electrons&holes pair
are produced which inc the zener current or reverse
saturation current which is independent of applied voltage.

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