vWIZ-SPICE is a native C++ hierarchical SPICE circuit simulator. It reads a transistor-level netlist and runs operating point, DC, AC and transient analyses directly through its own device models, matrix engine and solvers, with a qualified low-voltage BSIM3 path for IHP SG13G2. It does not invoke, link, load or package external EDA engines; the simulator is the product.
Reads a hierarchical transistor-level SPICE netlist as the circuit input for simulation.
Solves the DC operating point to establish bias conditions across the circuit.
Sweeps source and parameter values to trace the circuit's DC characteristics.
Small-signal AC analysis for frequency-domain response around the operating point.
Time-domain transient analysis producing waveforms for the simulated circuit.
Clean-room BSIM3v3 device models plus R, C, L, diode and independent and controlled sources, qualified on SG13G2 low-voltage MOS cards.
| Stage | Analog and custom, transistor-level circuit simulation |
|---|---|
| Analyses | Operating point, DC, AC and transient |
| Devices | R, C, L, independent and controlled sources, diode, and BSIM3v3 MOS |
| Inputs | Hierarchical transistor-level SPICE netlist and PDK SPICE model cards |
| Engine | Native C++ frontend, circuit IR, device models, matrix engine and solvers; no external simulator calls |
| Flow | Native stage in the WIOWIZ analog and custom flow |
| PDK | PDK-dependent — requires PDK SPICE model cards; qualified path on IHP SG13G2 (BSIM3) |
