{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9812398","patent":{"patent_number":"US-9812398","title":"Semiconductor memory device having memory cells provided in a height direction","assignee":null,"inventors":[],"filing_date":"2015-09-09T00:00:00.000Z","publication_date":"2017-11-07T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":20,"abstract":"According to an embodiment, a semiconductor memory device comprises: a memory string comprising a plurality of memory cells connected in series therein; and a contact electrically connected to one end of the memory string. The memory string comprises a plurality of control gate electrodes, and a semiconductor layer. The contact comprises a contact layer, the contact layer having a plate-like shape whose longer direction is a first direction parallel to the substrate, and the contact layer having its lower surface electrically connected to the one end of the semiconductor layer. Moreover, the contact layer includes a metal layer, a silicon based layer, and a second conductive layer. The metal layer includes tungsten. The silicon based layer includes a material including silicon. The second conductive layer covers side surfaces of the metal layer and the silicon based layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor memory device having memory cells provided in a height direction","description":"According to an embodiment, a semiconductor memory device comprises: a memory string comprising a plurality of memory cells connected in series therein; and a contact electrically connected to one end","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9812398","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-9812398","citation_suggestion":"Patentable. \"Semiconductor memory device having memory cells provided in a height direction\" (US-9812398). https://patentable.app/patents/US-9812398","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9812398","json":"https://patentable.app/api/llm-context/US-9812398","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:42:48.737Z"}