{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11302712","patent":{"patent_number":"US-11302712","title":"Integrated circuitry, memory arrays comprising strings of memory cells, methods used in forming integrated circuitry, and methods used in forming a memory array comprising strings of memory cells","assignee":null,"inventors":[],"filing_date":"2020-04-23T00:00:00.000Z","publication_date":"2022-04-12T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":35,"abstract":"A method used in forming integrated circuitry comprises forming a stack comprising vertically-alternating first tiers and second tiers. The stack comprises a cavity therein that comprises a stair-step structure. At least a portion of sidewalls of the cavity is lined with sacrificial material. Insulative material is formed in the cavity radially inward of the sacrificial material. At least some of the sacrificial material is removed from being between the cavity sidewalls and the insulative material to form a void space there-between. Insulator material is formed in at least some of the void space. Other embodiments, including structure independent of method, are disclosed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Integrated circuitry, memory arrays comprising strings of memory cells, methods used in forming integrated circuitry, and methods used in forming a memory array comprising strings of memory cells","description":"A method used in forming integrated circuitry comprises forming a stack comprising vertically-alternating first tiers and second tiers. The stack comprises a cavity therein that comprises a stair-step","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11302712","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-11302712","citation_suggestion":"Patentable. \"Integrated circuitry, memory arrays comprising strings of memory cells, methods used in forming integrated circuitry, and methods used in forming a memory array comprising strings of memory cells\" (US-11302712). https://patentable.app/patents/US-11302712","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11302712","json":"https://patentable.app/api/llm-context/US-11302712","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:33:37.524Z"}