A method of producing a placement of cells for a microelectronic integrated circuit in accordance with specified cell interconnects includes constructing a hierarchial cluster tree based on the interconnects in which a lowest level of the tree includes clusters of interconnected cells, and each successively...http://www.google.fr/patents/US5661663?utm_source=gb-gplus-shareBrevet US5661663 - Physical design automation system and method using hierarchical clusterization and placement improvement based on complete re-placement of cell clusters
Physical design automation system and method using hierarchical ...