NPN junction- Breakdown

Discussion in 'Homework Help' started by mrideau, Dec 11, 2009.

  1. mrideau

    Thread Starter New Member

    Dec 11, 2009
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    I have an NPN junction in series with a variable voltage source. The P is 1 um in legnth

    Na=10^20 mm
    Np=10^22 mm
    T= 295 K
    Un= .15 m^2/v*s
    Up=.05 m^2/v*s

    tn=tp=10 us

    Dtermine the breakdown voltage and the mechenism that caused it to breakdown.

    avalanche or punchthrough
     
  2. mrideau

    Thread Starter New Member

    Dec 11, 2009
    2
    0
    Any ideas or anything please help
     
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