JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductor Diode

  • question_answer
    Avalanche breakdown is due to                              [RPMT 2001]

    A)            Collision of minority charge carrier

    B)            Increase in depletion layer thickness

    C)            Decrease in depletion layer thickness

    D)            None of these

    Correct Answer: A

    Solution :

               At high reverse voltage, the minority charge carriers, acquires very high velocities. These by collision break down the covalent bonds, generating more carriers. This mechanism is called Avalanche breakdown. 


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