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%.

Date Published: 16 March 2016
PDF: 9 pages
Proc. SPIE 9781, Design-Process-Technology Co-optimization for Manufacturability X, 97810B (16 March 2016); doi: 10.1117/12.2219358

Published in SPIE Proceedings Vol. 9781:
Design-Process-Technology Co-optimization for Manufacturability X
Luigi Capodieci, Editor(s)