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UMC, EDA firm offer inductor synthesis

Posted: 02 Sep 2005 ?? ?Print Version ?Bookmark and Share

Keywords:eda software? integrand software? cmos? 13µm?

United Microelectronics Corp., a semiconductor foundry based in Taiwan, has collaborated with EDA software company Integrand Software Inc. (Berkeley Heights, New Jersey) to improve a virtual inductor library applicable to a UMC 0.13?m CMOS process.

Through the partnership, UMC's Virtual Inductor Library (VIL) has been made more "robust" and has new capabilities accessible from Integrand tools, UMC said. Integrand's EMX and EMX-Continuum EDA software programs, have been used to synthesize Spice models for a variety of spiral inductors, including planar, stacked and symmetric inductors. The accuracy has been verified to be within a few percent of inductance measurements as well as for more sensitive parameters such as the dimensionless quality factor (Q).

"Traditionally, scalable models have been provided by foundries only for active components. The EMX-Continuum software was used to create true parameterized, or scalable, models for UMC's spiral inductors. In addition, Integrand's Optimum Inductor Finder combined with UMC's FDK and VIL represent a unique solution to the inductor synthesis problem, previously thought intractable because of the large design space of passives," said Sharad Kapur, president of Integrand Software Inc., in a statement issued by UMC. Integrand's Optimum Inductor Finder, a GUI-based synthesis tool, is now deployed within the foundry design kit to allow UMC customers to enter their desired inductance and make tradeoff decisions between Q and area. Designers can also request a specified "flatness" of inductance within a given frequency range for Ultra-Wideband (UWB) circuit designs.

- Peter Clarke

EE Times





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