Question

Avalanche breakdown results basically due to

• A. impact ionisation
• B. strong electric field across the junction
• C. emission of electrons
• D. rise in temperature

Answer 1

The correct option is A impact ionisation

The avalanche process occurs when carriers in the transition region are accelerated by the electric field to energies sufficient to create mobile or free electron-hole pairs via collisions with bound electrons. which is basically impact ionization.