• TCAD Examples

    TCAD Examples

ganfetex17.in : AlGaN/GaN Electro-Thermal simulation

Requires: Victory Device
Minimum Versions: Victory Device 1.18.0.R

This example demonstrates Id-Vds and Id-Vgs simulations for a 2D and 3D AlGaN/GaN HEMT.

This example demonstrates:

  • Construction of the heterojunction structure using Victory Device syntax
  • Material and models parameter specification
  • Simulation of Id/Vds and Id/Vgs characteristics
  • Display of the results in TonyPlot and TonyPlot 3D

By default Victory Device run on just one processor. To ensure better perfomance on your computer the following simulation condition simflags="-P all" could be specidied in the go line starting Victory Device. This means that all processors available will be used. If you want to use a smaller number of processors you can substitute "all" with a desired number, e.g. simflags="-P 4".

The device under consideration is a AlGaN/GaN HEMT. The main concept here is that the polarization charge is calculated using the built-in models as specified by the POLARIZATION parameter on the MODEL statement.

After the initial solution is obtained, the gate voltage is ramped from 0V to -7.6 V to get the IdVg characteristic at Vd=1 V.

A family of drain current characteristics are then simulated with lattice heating taken into account by ramping the drain from 0 to 15 V at various gate voltages.

Since the width of the 3D device is set to 1um a direct comparison with 2D results is possible for validation purpose.

To load and run this example, select the Load button in DeckBuild > Examples. This will copy the input file and any support files to your current working directory. Select the Run button in DeckBuild to execute the example.

Input Files
Output Results
These examples are for reference only. Every software package contains a full set of examples suitable for that version and are installed with the software. If you see examples here that are not in your installation you should consider updating to a later version of the software.
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