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Homework Help: Saturation current

  1. Oct 15, 2011 #1
    1. The problem statement, all variables and given/known data
    NA=1016 cm-3, ND=1017 cm-3, μp=260 cm2/V·s, μn=1100 cm2/V·s, τp=8*10-7 s,
    τn=2*10-6 s is given for a silicon pn junction.
    Assume ni=1010 cm-3 and εSi=1.04*10-12 F/cm.

    Calculate the saturation current Is for a junction area of A=0.1 mm2.

    2. Relevant equations
    i found this picture as a formula but i m not really sure what does wp and wn mean

    any help is appreciated
  2. jcsd
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