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Semiconductor diodes help
    #3047770 - 08/25/04 09:55 AM (13 years, 5 months ago)

I hope one of you guys can help me with this. I'm working on this take-home exam on semiconductors and diodes, and I can't figure out this simple (?) problem.

Here is the given info:
  • a silicon pn-diode operating at room temperature (300 K)
  • Na = 2.4x10^14/cm3
  • Nd = 5.6x10^16/cm3
  • ni for silicon is 9.65x10^9/cm3
  • Lp and Ln = 100 microns

    And the question is, Determine the majority carrier density Pp0 in the P-type side of the diode far away from the pn junction. The thing is, I can't find an equation anywhere for Pp0 using the information given. I have an equation for Pp but that seems to be for measuring P close to the PN junction, not far away from it. Does anyone know about this stuff?

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    Re: Semiconductor diodes help [Re: ]
        #3051186 - 08/26/04 01:20 AM (13 years, 5 months ago)

    Bah, I figured it out. I wasn't really expecting anyone here to know this but I was struggling with it a few hours ago.

    Mods you can delete this to reduce the clutter.  :wink:

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