{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11963355","patent":{"patent_number":"US-11963355","title":"Semiconductor memory device and manufacturing method thereof","assignee":null,"inventors":[],"filing_date":"2021-12-06T00:00:00.000Z","publication_date":"2024-04-16T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L","H01L"],"num_claims":11,"abstract":"There are provided a semiconductor memory device and a manufacturing method thereof. The semiconductor memory device includes: a gate stack structure including interlayer insulating layers and conductive patterns, which are alternately stacked in a vertical direction on a substrate; a plurality of channel structures penetrating the gate stack structure, each of the plurality of channel structures with one end portion protruding past a boundary of the gate stack structure; and a source layer formed on the gate stack structure. The protruding end portion of each of the plurality of channel structures extends into the source layer. The protruding end portion of each of the plurality of channel structures has a flat section."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor memory device and manufacturing method thereof","description":"There are provided a semiconductor memory device and a manufacturing method thereof. The semiconductor memory device includes: a gate stack structure including interlayer insulating layers and conduct","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11963355","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-11963355","citation_suggestion":"Patentable. \"Semiconductor memory device and manufacturing method thereof\" (US-11963355). https://patentable.app/patents/US-11963355","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11963355","json":"https://patentable.app/api/llm-context/US-11963355","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T02:40:23.875Z"}