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VWF:

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Included in VWF:
SPAYN

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VWF

Automated Design of Experiment and Optimization framework
8.1 MB

VWF

VIRTUAL WAFER FAB

VWF is software used for performing Design of Experiments (DOE) and Optimization Experiments. Split-lots can be used in various pre-defined analysis methods. Split parameters can be defined for any of Silvaco’s process, device, parasitic extraction and circuit simulators. All simulations can be carried out in parallel either on a cluster of workstations or on a single SMP machine. VWF comes with a GUI, that also enables examination of experimental results.

Key Features

• VWF can represent an entire flow from process simulation to spice circuit performance, or just part of the flow
• Any mix of masks, process parameters, device parameters, circuit parameters or tuning coefficients can be defined as input variables
• Experiments can be defined by varying the input parameters automatically via a DOE such as Box Behnken, via an optimization algorithm like Levenberg-Marquardt, via a user-definable script or manually
• Powerful scripting interface allows to fully customize DOEs and to run experiments in the background
• Process characteristics such as oxide thickness, device characteristics such as a threshold voltage, or circuit characteristics such as rise time can be measured from the entire flow
• Each experimental variation can be run on a network of hosts to shorten simulation time
• Response models can be generated over the experimental spread and then input parameters can be rubber banded to see the effect on output responses
• A full worksheet of input and measured output responses can be exported to SPAYN for additional statistical analysis, or to TonyPlot for viewing purposes
• Advanced security features allowing fine-grained access control

Rev. 091311_07