{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11943915","patent":{"patent_number":"US-11943915","title":"Three-dimensional memory device with vias connected to staircase structure","assignee":null,"inventors":[],"filing_date":"2021-02-08T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":16,"abstract":"A three-dimensional memory device includes a lower stack and an upper stack stacked one on the other, and each including a plurality of word lines which are stacked alternately with a plurality of interlayer dielectric layers, wherein each of the lower stack and the upper stack includes a first cell part, a second cell part, a coupling part which couples the first cell part and the second cell part, and a staircase part which extends parallel to the coupling part from the first cell part and in which pad areas of the word lines are disposed in a stepwise manner, and wherein the coupling part of the upper stack is disposed to overlap with the staircase part of the lower stack, and the staircase part of the upper stack is disposed to overlap with the coupling part of the lower stack."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Three-dimensional memory device with vias connected to staircase structure","description":"A three-dimensional memory device includes a lower stack and an upper stack stacked one on the other, and each including a plurality of word lines which are stacked alternately with a plurality of int","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11943915","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-11943915","citation_suggestion":"Patentable. \"Three-dimensional memory device with vias connected to staircase structure\" (US-11943915). https://patentable.app/patents/US-11943915","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11943915","json":"https://patentable.app/api/llm-context/US-11943915","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T13:45:16.636Z"}