An Automatic Layout Design Aid for Analog Integrated Circuits
نویسندگان
چکیده
This paper presents an automatic layout design system for analog integrated circuits. It is tailed for analog circuit designers so that they can bring their special knowledge and experience into the synthesis process to create high quality layouts. Designers can write and maintain their own technology and application independent module generators for subcircuits in a module generator environment. Different from other systems, layout generation is based on optimal complex modules rather than simple single devices. A novel genetic placement approach with simulated annealing is developed. The minimum-Steiner-tree based global routing can be integrated into the placement procedure in order to improve the routability of placement solutions. The compaction based constructive detailed routing finally realizes the layout of the whole circuit. Several examples are given to demonstrate its design efficiency and usability. Experiments show that it is superior to the existing tools and can provide comparable results to manual layouts.
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