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3D modelling tool eases verification

Posted: 18 Oct 2010 ?? ?Print Version ?Bookmark and Share

Keywords:modeling tool? MEMS? design?

Coventor Inc. announces that its 3D modeling tool for MEMS chip design, MEMS+ ver. 2, has been modified so that designs can be verified using MathWorks Inc.'s Mathlab behavioral modeling tool.

The company explained that the latest version of its design suite can generate schematic symbols and simulation models for Simulink. MEMS+ previously allowed MEM designers to work closely with CMOS-chip designers by virtue of its tight integration with Cadence Design Systems Inc.'s Virtuoso IC design environment. Now MEMS-chip designers can also use Mathlab's Simulink behavior modeling tools to verify that the design functions correctly.

"We have closed the gap between the MEMS designer and the IC engineers," said Steve Breit, VP of engineering at Coventor. "We already had tight integration with Cadence's Virtuoso at the behavioral-, transistor-, and physical-levels, but what was remained was the algorithmic levels that are now addressed by our integration with Mathlab's Simulink."

MEMS+ ver. 2 also expands its library of 3D MEMS building blocks to include piezoelectric layers and flexible plates. It speeds simulations in Virtuoso by 10 fold and adds support for 64-bit Cadence Spectre/Ultrasim simulations, the company said.

Fully parameterized behavior models created in 3D in MEMS+ can now be easily moved to Mathlab's Simulink and Cadence's Virtuoso, cutting the need for manual translation steps. The library building blocks simplify the design of typical MEMS devices like accelerometers, gyroscopes, display mirrors, resonators, pressure sensors and RF switches, plus the new building blocks extend to new types of flexible structures being used by advanced inertial sensors, digital microphones and energy harvesting devices.

MEMS+ can also export 3D models for verification with legacy finite-element analysis tools. MEMS designers can also customize the parameterization of library building blocks for variations in manufacturing processes, ambient environment and geometric dimensions of the elements.

Simulation results in Simulink and Virtuoso can also be reloaded back into MEMS+ for animations using its 3D visualization tools.





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