PN junction diode

Discussion in 'General Electronics Chat' started by ee student, Nov 6, 2006.

  1. ee student

    Thread Starter New Member

    Nov 6, 2006
    1
    0
    hi
    i am new here, and i just want to ask, if i have a PN junction doped with Na=2*10^17 on the p side
    how to calculate the hole density/
    thank you
     
  2. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    I like some others may be a touch confused here; Na is the volume density of donors (in this case holes) per unit volume.

    Are you trying to calculate the total charge on the p-side?

    If so:

    Q = q*Na*wp

    Where:

    Q = total charge
    q = 1.6e-19
    Na = 2e17
    Wp = the width of the p-side of the PN junction.

    Dave
     
Loading...