{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11532639","patent":{"patent_number":"US-11532639","title":"Three-dimensional semiconductor memory device","assignee":null,"inventors":[],"filing_date":"2020-09-29T00:00:00.000Z","publication_date":"2022-12-20T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":20,"abstract":"Disclosed is a three-dimensional semiconductor memory device including a carbon-containing layer on a substrate, a plurality of electrode interlayer dielectric layers and a plurality of electrode layers that are alternately stacked on the carbon-containing layer, a cell vertical pattern that penetrates at least some of the electrode interlayer dielectric layers and the electrode layers, and a semiconductor pattern between the cell vertical pattern and the carbon-containing layer. The substrate includes a plurality of first grains. The semiconductor pattern includes a plurality of second grains. An average size of the second grains is less than an average size of the first grains."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Three-dimensional semiconductor memory device","description":"Disclosed is a three-dimensional semiconductor memory device including a carbon-containing layer on a substrate, a plurality of electrode interlayer dielectric layers and a plurality of electrode laye","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11532639","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-11532639","citation_suggestion":"Patentable. \"Three-dimensional semiconductor memory device\" (US-11532639). https://patentable.app/patents/US-11532639","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11532639","json":"https://patentable.app/api/llm-context/US-11532639","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:27:54.443Z"}