{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11282855","patent":{"patent_number":"US-11282855","title":"Methods for forming multi-layer vertical NOR-type memory string arrays","assignee":null,"inventors":[],"filing_date":"2019-12-09T00:00:00.000Z","publication_date":"2022-03-22T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":19,"abstract":"A method for forming 3-dimensional vertical NOR-type memory string arrays uses damascene local bit lines is provided. The method of the present invention also avoids ribboning by etching local word lines in two steps. By etching the local word lines in two steps, the aspect ratio in the patterning and etching of stack of local word lines (“word line stacks”) is reduced, which improves the structural stability of the word line stacks."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods for forming multi-layer vertical NOR-type memory string arrays","description":"A method for forming 3-dimensional vertical NOR-type memory string arrays uses damascene local bit lines is provided. The method of the present invention also avoids ribboning by etching local word li","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11282855","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-11282855","citation_suggestion":"Patentable. \"Methods for forming multi-layer vertical NOR-type memory string arrays\" (US-11282855). https://patentable.app/patents/US-11282855","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11282855","json":"https://patentable.app/api/llm-context/US-11282855","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:17:46.289Z"}