How is formulae modified if diffusivity and mobility vary

Reference no: EM131320960

An n-type SI slice of a thickness L Is inhomogeneously doped with phosphorus donor whose concentration profile is given by N_DD(x) N₀ + (N_L-N₀)(x/L).

What is the formulae for the electric potential difference between the front and the tack surfaces when the sample is at thermal and electric equilibria regardless of how the mobility and diffusivity varies with position?

What is the formulae for the equilibrium electric field at a plane x from the front surface for a constant diffusivity and mobility?

How is the formulae modified if diffusivity and mobility vary with impurity ion concentration?

Reference no: EM131320960

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