Question

Avalanche breakdown occurs

• A. in lightly doped junctions, which produce wide depletion layers.
• B. in heavily doped junctions, which produce wide depletion layers.
• C. in moderately doped junctions, which produce wide depletion layers.
• D. in heavily doped junctions, which produce narrow depletion layers.

Answer 1

Answer: (C)

in moderately doped junctions, which produce wide depletion layers.

Avalanche breakdown occurs in a p-n junction diode which is moderately doped and has a thick junction (means its depletion layer width is high). Hence option C is correct.