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Cadence qualifies extraction tool for process tech

Posted: 17 Nov 2004 ?? ?Print Version ?Bookmark and Share

Keywords:cadence design systems? chartered semiconductor? fire & ice qx? extraction tool? digital IC reference flow?

Cadence Design Systems Inc. and Chartered Semiconductor Mfg have jointly qualified the Cadence Fire & Ice QX cell-based extraction tool for Chartered's advanced nanometer processes. By integrating Fire & Ice QX into the Chartered-Cadence digital IC reference flow, companies can shorten the time from chip design to volume production.

Through this collaboration, designers can use Cadence Fire & Ice QX to determine the timing of their designs on Chartered's advanced processes and correctly account for cross coupling capacitances critical for signal integrity (SI) analysis. With timely access to more accurate analysis results, design teams can meet performance specifications and improve time-to-market cycles without over-constraining their designs.

With its innovative 3-D scanning engine and models, Fire & Ice QX is claimed to accurately model the new classes of manufacturing effects introduced with advanced process technologies. For example, Fire & Ice QX calculates the capacitive effect of dummy metal fill on signal wires, which can complicate timing closure on modern designs. Less accurate extraction tools may either overestimate these SI effects resulting in project delays while designers sort through false timing violations, or underestimate the SI effects resulting in undetected timing violations and non-functional silicon.

Advanced packages such as flip-chips require wide, non-Manhattan top-level metal routing. Accurate resistance calculations are required to model these routes correctly. The resistance engine in Fire & Ice QX has also been significantly enhanced to deliver highly accurate resistance values on these challenging structures.





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