{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11251197","patent":{"patent_number":"US-11251197","title":"Semiconductor device","assignee":null,"inventors":[],"filing_date":"2020-07-13T00:00:00.000Z","publication_date":"2022-02-15T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":20,"abstract":"A semiconductor device including a lower structure, an upper pattern, a stacked structure, a separation structure passing through the stacked structure, a vertical structure comprising a channel layer, wherein the stacked structure comprises a plurality of interlayer insulating layers and a plurality of gate layers, the lower structure comprises a first lower pattern and a second lower pattern of a material different from a material of the first lower pattern, the first lower pattern comprises a first portion between the second lower pattern and the channel layer, a second portion extending from the first portion to a region between the second lower pattern and the upper pattern, and a third portion extending from the first portion to a region between the second lower pattern and the substrate structure, and the first lower pattern does not extend toward a side surface of the upper pattern."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor device","description":"A semiconductor device including a lower structure, an upper pattern, a stacked structure, a separation structure passing through the stacked structure, a vertical structure comprising a channel layer","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11251197","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-11251197","citation_suggestion":"Patentable. \"Semiconductor device\" (US-11251197). https://patentable.app/patents/US-11251197","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11251197","json":"https://patentable.app/api/llm-context/US-11251197","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T08:30:33.567Z"}