[Solved] 3 IMPATT DIODES, SCHOTTKY BARRIER DIODES, PIN DIODES

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Q.	3 IMPATT DIODES, SCHOTTKY BARRIER DIODES, PIN DIODES
A.	avalanche multiplication
B.	break down of depletion region
C.	high reverse saturation current
D.	none of the mentioned
Answer» A. avalanche multiplication
Explanation: a reverse bias voltage exceeding the breakdown voltage is applied to an impatt diode, a high electric field appears across the n+ p junction. this high field imparts sufficient energy to the holes and also to valence electrons to raise themselves to the conduction band. this results in avalanche multiplication of electron hole pair.

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