Cadence Design Systems, Inc.

Shu Ye

Jilin Tan

Raymond Komow

Paul S Musto

Roger Cleghorn

Shangli Wu

Nitin Ramchand Somaya

A model library contains one or more storable models of a physical system each constructed by numerically solving relationships between a characteristic of the physical system given a set of model parameters. Such a model may be retrieved from the library according to values assigned to the model parameters and used to determine a corresponding characteristic of the physical system without repeating the numerical solution method originally used to create the model. Instead, a mapping may be applied to the storable model to seamlessly obtain the characteristic upon request.

Analysis of physical systems via model libraries thereof

Disclosed are methods and systems for generating S-parameters. In some embodiments, the methods and systems comprise creating (e.g., extracting, calculating, generating), in part or whole into the development environment, S-parameters of the given netlist, which may be represented in part or whole by S-parameters. This is useful in data abstraction, topology complexity reduction, or data hiding. Some embodiments provide convenient and automated approaches for what is normally a complicated and laborious process. Some embodiments provide the ability to generate S-parameters for the specified part or whole topology netlist. Ports can be specified at any node in the topology. Non-linear devices, e.g., IBIS buffers, diodes, non-linear terminations, can be automatically excluded from generated S-parameter model. Additionally, adding the device package models is an available option. Once generated, S-parameter models can be automatically replaced by the original part or whole topology with a Black Box and the original connections are maintained.

Method and system for s-parameter generation

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Acton, MA, United States of America

Shu Ye