SANTA CRUZ, Calif. Offering its first full-chip parasitic extraction product, Silvaco International has released Hipex, which claims "3D accurate" resistance and capacitance (RC) extraction. It's based on the same Digital Equipment Corp. (DEC) technology that was used to build Simplex extraction products, according to Silvaco.
Ivan Pesic, Silvaco CEO, said Silvaco purchased source code for DEC schematic entry and extraction technology in 1995 just before DEC was sold to Compaq. "Later, DEC employees bought the same code and formed Simplex," he said. "We've worked on it for five years now, and I think we can take on Mentor and Cadence very well."
Using a geometric algorithm based on trapezoids, Hipex is not a true 3D field solver, noted Ken Brock, Silvaco vice president of marketing. However, he said, Hipex uses resistance and capacitance models built with Silvaco's 3D field solvers. Additionally, he noted, Hipex lets users write their own equations and create their own models, which can be characterized with a 3D field solver.
Brock also noted that Hipex has a "selected net" feature, such that users can select a particular set of nets using Silvaco's Expert layout editor and run extraction only on those nets. Hipex can also work with other vendors' layout products, since it outputs Spice files and uses standard DSPF and SPEF formats.
The product's capacitance extraction includes parasitic overlap, lateral, and fringe. Resistance extraction includes parasitics for lines, contacts, and vias, and splits long conducting tracks for more accurate RC distribution. Users can trade off accuracy versus run time. Pesic said Hipex has run extraction on chips with more than 40 million transistors.
Users can purchase Hipex-C for capacitance, Hipex-RC for resistance and capacitance, or Hipex-CRC for network reduction. All are now available from Silvaco on Linux, Windows, and Sun platforms, starting at $80,000 for Hipex-RC for a term-based license.