{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8473874","patent":{"patent_number":"US-8473874","title":"Method and apparatus for automatically fixing double patterning loop violations","assignee":null,"inventors":[],"filing_date":"2011-08-22T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":22,"abstract":"A method for automatically generating and prioritizing several design solutions that resolve a double patterning (DP) loop violation in an IC design layout. The method of some embodiments receives a DP loop violation marker and identifies pairs of edges of shapes that form a double patterning loop based on the DP loop violation marker. For each pair of edges that violates the design rule, the method generates one or more design solutions. Each design solution moves a single edge or both edges to resolve the violation. The method of some embodiments computes the cost of applying each design solution to the IC design layout and prioritizes the generated solutions for all the identified pairs of edges based on the computed cost for each solution. The method in some embodiments then selects a solution from the prioritized solutions and applies the selected solution to the design layout."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for automatically fixing double patterning loop violations","description":"A method for automatically generating and prioritizing several design solutions that resolve a double patterning (DP) loop violation in an IC design layout. The method of some embodiments receives a D","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8473874","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8473874","citation_suggestion":"Patentable. \"Method and apparatus for automatically fixing double patterning loop violations\" (US-8473874). https://patentable.app/patents/US-8473874","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8473874","json":"https://patentable.app/api/llm-context/US-8473874","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:29:04.304Z"}