{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11264387","patent":{"patent_number":"US-11264387","title":"Semiconductor storage device comprising staircase portion and method for manufacturing the same","assignee":null,"inventors":[],"filing_date":"2020-03-05T00:00:00.000Z","publication_date":"2022-03-01T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":20,"abstract":"A semiconductor storage device according to an embodiment includes: a stacked body in which a plurality of conductive layers are stacked via an insulating layer and which has a memory portion in which a plurality of memory cells are disposed and a staircase portion in which end portions of the plurality of conductive layers form a staircase shape. The staircase portion has three or more first sub-staircase portions ascending in a direction opposite to a direction toward the memory portion, and at least one first sub-staircase portion among the three or more first sub-staircase portions is divided into at least an upper staircase and a lower staircase by a difference in level larger than a difference in level of each stair of the first sub-staircase portion."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor storage device comprising staircase portion and method for manufacturing the same","description":"A semiconductor storage device according to an embodiment includes: a stacked body in which a plurality of conductive layers are stacked via an insulating layer and which has a memory portion in which","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11264387","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-11264387","citation_suggestion":"Patentable. \"Semiconductor storage device comprising staircase portion and method for manufacturing the same\" (US-11264387). https://patentable.app/patents/US-11264387","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11264387","json":"https://patentable.app/api/llm-context/US-11264387","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:17:22.770Z"}