A floorplanning apparatus includes a seed position decision section for deciding a placement position of a logic seed of each hierarchical block; a cell placement section for placing cells belonging to the hierarchical block around the placement position of each logic seed; and a placement region decision...http://www.google.com.hk/patents/US6938232?utm_source=gb-gplus-share專利 US6938232 - Floorplanning apparatus deciding floor plan using logic seeds associated with hierarchical blocks
