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Semiconductors: MOSFET help w/ diffusion and drift current

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hrstar24

Joined Apr 7, 2009
32
So I am given the equation for inversion layer charge density:

Qn = -Cox(Vg - Vt - V(y))

And somehow I am supposed to derive the equations for Drift and Diffusion current from this, but I have no idea where to start. Any help?
 
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