D.1.3 The Model DTSchuegraf

While the FOWLER-NORDHEIM and the LENZLINGER-SNOW models are only valid in the case of a triangular barrier (high bias), the SCHUEGRAF model can be used for direct tunneling through a trapezoidal barriers (valid for low bias). It only differs from the LENZLINGER-SNOW model by two correction factors, see (3.119). For triangular barriers the FNLenzlingerSnow model is used per default, i.e. $B_1=B_2=1$. The DTSchuegraf model has the same input deck parameters as the FNLenzlingerSnow model.

A. Gehring: Simulation of Tunneling in Semiconductor Devices