Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2016 · 10 citations · 4 references
ArchitectureComputer EngineeringDigital DesignComputer-aided DesignDesign AutomationDesign OptimizationDesign Rule CheckingLayout DesignLayout OptimizationPhysical DesignVery-large-scale Integration LayoutDesign Rule ComplianceDouble Patterning LayoutHotspot FeaturesHotspot MitigationLayout Rule CheckingLayout TechniquesPatternsSelf-aligned Patterning
A pattern-based methodology for optimizing Self-Aligned Double Patterning (SADP)-compliant layout designs is developed based on detecting cut-induced hotspot patterns and replacing them with pre-characterized fixing solutions. A pattern library with predetermined fixing solutions is built. A pattern-based engine searches for matching patterns in the layout designs. When a match is found, the engine opportunistically replaces the detected pattern with a pre-characterized fixing solution, preserving only the design rule check-clean replacements. The methodology is demonstrated on a 10nm routed block. A small library of fourteen patterns reduced the number of cut-induced design rule check violations by 100% and lithography hotspots by 23%.
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