Can DEVICE simulation time be reduced using specific conditions?

boundaryconditions
simulationtime

#1

Symmetric, anti-symmetric and PML boundary conditions can be used in FDTD Solutions to reduce simulation time. Are there conditions within DEVICE that can be manipulated to achieve the same goal?


#2

The boundaries in DEVICE imply symmetry by default. As a result, simulations in DEVICE can be made to run faster similar to that in FDTD Solutions by using the symmetry of the structure. For example, in the following screenshot, we have a simple pn junction diode. Since the device is symmetric in the horizontal (x) direction, we can simulate a thin slice of the diode instead of the whole device and make the simulation run much faster. The same thing goes for using the symmetry of a device to perform 2D simulations instead of 3D and reduce simulation time (in a manner similar to FDTD Solutions).

Besides reducing the simulation dimension and size/volume, the simulation time can also be reduced by using a coarser mesh (again similar to FDTD Solutions).