Eight Power Source Structure

thermalex02.in : Eight Power Source Structure

Requires: DevEdit 3D/Thermal 3D
Minimum Versions: Atlas 5.28.1.R

This example runs a thermal simulation of a 2 layer structure with 8 power sources. The main sequential tasks are:

  • Specification of all ten regions in DevEdit 3D
  • Specification of heat sink in in DevEdit 3D
  • Interface to Atlas
  • Selection of thermal models and material parameters
  • Solving of temperature distribution

This example is similar to the device described in Thermal Simulation and Design of a GaAs HBT Sample and Hold Circuit by Ken Poulton et al. The device technology is from the paper by R. Nubling in Technical Digest of 1990 GaAs IC Symposium pp53-56.

The structure in this example is defined using DevEdit 3D in a similar manner to the previous example. Initially the structure was defined using the graphical mode of DevEdit 3D. After the mesh was created, a command file was saved from DevEdit 3D enabling the structure to be re-created in DeckBuild.

Once in Atlas, the models thermal statement is used to indicate that this is a heat distribution simulation. The material statement is used to set the heat power output of each of the eight heat producing regions in this structure. Region #10 is defined to have a constant thermal conductivity of 1.0. The solve t1=300 statement sets the thermal boundary condition on the electrode to be 300K and then solves the heat flow equation self-consistently in the structure. The resulting 3D heat distribution can be shown in TonyPlot 3D.

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.