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Silicon Metrics adds signal integrity tool

Posted: 07 Mar 2003 ?? ?Print Version ?Bookmark and Share

Keywords:silicon metrics? siliconsmart si? signal integrity tool? si model? signal analysis tool?

Silicon Metrics has added to its library development suite a new tool that performs signal integrity noise characterization and produces models for the latest generation of third-party signal integrity analysis tools.

The new tool, SiliconSmart SI, addresses the growing need for tools that can accurately model serious signal integrity glitches, which are becoming more common in design implemented with process geometries of 130nm and below.

The new tool, based on Silicon Metrics' characterization technology and targeted toward library developers and CAD teams, allows users to generate accurate SI models, which are in turn analyzed and interpreted by popular signal integrity tools from companies such as Cadence Design Systems Inc. and Synopsys Inc. The tool generates models in various formats including Liberty for Synopsys' PrimeTime SI and ECSM for Cadence SignalStorm.

The company claims the latest signal integrity analysis tools can often produce hoards of data, much of it inaccurate, which makes it easy for design engineers to overlook show-stopping glitches. Thus the more accurate models produced by SilconSmart SI allows users of third-party SI analysis tool to home in on those glitches.

Robert Jones, director of strategic marketing at Silicon Metrics, said newer analysis tools use sophisticated noise models produced by SiliconSmart SI to help eliminate, among other things, false positive errors.

"These sophisticated models represent glitch waveforms with glitch magnitude, duration and shape, while simplistic models use only voltage magnitude," said Jones. "Also, by using load-aware noise immunity models, second generation tools evaluate noise impact more precisely."

Added Jones, "Finally, these newer tools use sophisticated models to analyze noise waveform propagation to determine whether an injected glitch attenuates as it fans out or whether it combines with other glitches to form more significant waveforms."

SigmalSmart offers support for all new Liberty noise model constructs including drivers, noise immunity and noise propagation. The tool also includes intelligent measurement planning to accelerate SI characterization, the company said.

Jones said the tool is also configurable to support a range of SI modeling levels. These levels match modeling construct support to particular analysis tool capabilities, allowing a trade off of characterization complexity with analysis capability across multiple tools. Modeling level support and capacity can be scaled as needed.

SiliconSmart SI starts at $90,000 with cost based on the level of data to be acquired and modeled and on throughput increases.

- Mike Santarini

EE Times

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