OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1977 · 17 citations · 0 references
EngineeringComputer EngineeringComputer ScienceComputer ArchitectureComputer-aided DesignVlsi DesignCmos Circuit DesignIntegrated Circuit DesignLayout DesignLayout OptimizationStandard Cell DesignVery-large-scale Integration LayoutChip PartitioningLayout TechniquesMask Layout GenerationSiliconStandard Cells
A new automatic layout code (Sandia Integrated Circuit Layout Program System-SICLOPS) is being developed which avoids earlier problems, provides flexibility for designing ICs using different technologies, and provides the basis necessary to design highly complex chips bordering on VLSI complexity. The SICLOPS layout approach relies on a structured hierarchical layout using modules consisting of assemblies of standard cells or bonding pads and macrocells. One of the keys to efficiency is the use of the same routing algorithms at each stage of the layout to optimize the layout for the individual modules prior to incorporating the modules in the overall chip layout. The SICLOPS program is expected to generate a CMOS IC layout using a silicon gate technology which is approximately a factor of five higher in device density than a metal gate technology. (RWR)