Abstract
It is shown that at high current densities the carrier transport in base layer of Schottky diodes in addition to commonly accepted diffusive and drift currents is defined by recently discovered diffusion stimulated by quasi-neutral drift (DSQD). The influence of this recently discovered component of current on current-voltage characteristics of Schottky diode has been investigated. It was shown that in case if the ratio of base width $W$ to ambipolar diffusive length $L$ is higher than 1 ($W/L>1$) a part with negative differential resistance appears on the current-voltage characteristics of Schottky diode. The results of analytical investigation are confirmed by numerical calculation using INVESTIGATION program.
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