Extraction of Schottky diode parameters from forward current-voltage characteristics

Abstract
It is shown that by using the forward current density‐voltage (JV) characteristics of a Schottky diode, a plot of d(V)/d(ln J) vs J and a plot of the function H(J) vs J, where H(J)≡Vn(kT/q)ln(J/A**T2), will each give a straight line. The ideality factor n, the barrier height φB, and the series resistance R of the Schottky diode can be determined with one single IV measurement. This procedure has been used successfully to study thermal annealing effects of W/GaAs Schottky contacts.

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