Crosslight is pleased to announce the successful implementation of an improved algorithm to perform simulations that include self-heating. In compound semiconductor, many material parameters are sensitive to temperature and such temperature sensitivity causes simulation to diverge from time to time in the default method where there is strong coupling between electrical and thermal equations.
To avoid the possible frustration caused by divergence due to thermal coupling, it is desirable to have the option of
decoupling the thermal and electrical simulations without too much of a loss in accuracy. As shown in this example, the split step causes some minor noise in the simulation IV/LI curves without altering the general behavior.
Users affected by thermal divergence problems are encouranged to contact Crosslight for the 2025 beta version.