Electric and Alliance are the names of two open source VLSI CAD systems. This project evaluates the design flow from VHDL behavioral description to layout using combination of Alliance and Electric tools.
Electric is an integrated-circuit design system that offers IC layout, schematic editing, and even textual hardware-description languages. It offers a wide range of synthesis and analysis tools for working on the circuitry. It has many importers and exporters for interfacing to other EDA (Electronic Design Automation) systems. It even has a constraint system for managing chip layout. For more information about Electric, see www.staticfreesoft.com