The software application by Synopsys that includes the feature/module called RSOFT_BSIM is **HSPICE**.
**RSOFT_BSIM** refers to a specific model within HSPICE, which is used for the simulation of semiconductor devices. It stands for **Ray-Specific Optimized Process (BSIM)** and is typically utilized for modeling the behavior of MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) and other semiconductor devices. The RSOFT_BSIM model is