{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9721668","patent":{"patent_number":"US-9721668","title":"3D non-volatile memory array with sub-block erase architecture","assignee":null,"inventors":[],"filing_date":"2015-08-06T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G11C","G11C","G11C"],"num_claims":19,"abstract":"A memory device has a divided reference line structure which supports sub-block erase in NAND memory including a plurality of blocks. Each block in the plurality of blocks is coupled to a set of Y reference lines, where Y is two or more. Each block in the plurality of blocks includes a single reference select line (RSL), which is operable to connect each sub-block in the block to a corresponding reference line in the set of Y reference lines. A control circuit can be included on the device which is configured for an erase operation to erase a selected sub-block in a selected block."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"3D non-volatile memory array with sub-block erase architecture","description":"A memory device has a divided reference line structure which supports sub-block erase in NAND memory including a plurality of blocks. Each block in the plurality of blocks is coupled to a set of Y ref","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9721668","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-9721668","citation_suggestion":"Patentable. \"3D non-volatile memory array with sub-block erase architecture\" (US-9721668). https://patentable.app/patents/US-9721668","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9721668","json":"https://patentable.app/api/llm-context/US-9721668","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:25:10.845Z"}