Sunnyvale, Calif.--Aug. 22, 1997--Version 4.1 of Raphael, an interconnect analysis software package for integrated circuit design, is now available from Technology Modeling Associates Inc. (TMA; Sunnyvale, Calif.). Raphael 4.1 includes enhancements to the Raphael Parasitic Database (RPD), and Raphael's optional Layout Parameter Extraction Advanced Application Module (LPE-AAM) now offers interface capability to additional LPE tools, from suppliers Mentor Graphics and Cadence Design Systems.
The RPD features a user-selectable, planarized vs. non-planarized technology option. Previously, users could generate capacitance simulations of the generic structures based only on planarized technology, but now they can generate capacitance simulations based on non-planarized technology and determine its effect. Non-planarized technology means that the effective accumulative dielectric thickness between conductors of different layers is approximately reduced by the thickness of the missing conductors in the intervening conductor layers.
The user can now elect to generate capacitance tables from RPD to view the simulated results in tabular form, which is sometimes more convenient than performing regression analysis and viewing the results as equations or plotted curves. The LPE-AAM now uses a table look-up algorithm to generate capacitance coefficients for the supported tools. This eliminates any error introduced by the two-step process of first fitting an equation to data points simulated during regression analysis and then generating coefficients indirectly from these equations.
The LPE-AAM now supports Mentor Graphics' xCalibre and ICextract, and Cadence's Dracula (versions 4.4 and 4.5) and Diva. The interface with Dracula 4.5 takes advantage of advanced macros for generating LPE rule decks. The LPE-AAM support for xCalibre, ICextract, and Diva is new with Raphael 4.1.
Raphael is available now on Unix-based workstations from Digital Equipment Corp., Hewlett-Packard, IBM, and Sun Microsystems. Pricing for Raphael begins at $33,750.
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