{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11521988","patent":{"patent_number":"US-11521988","title":"Three-dimensional memory device erase operation","assignee":null,"inventors":[],"filing_date":"2021-03-26T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["G11C","G11C","G11C","G11C","G11C"],"num_claims":20,"abstract":"Implementations of the present disclosure provide 3D memory devices and methods for operating the 3D memory devices. In an example, a 3D memory device includes a plurality of memory layers and a dummy memory layer between the plurality of memory layers and a NAND memory string extending through the memory layers and the dummy memory layer. The NAND memory string includes a source, a drain, and a plurality of memory cells at intersections with the plurality of memory layers and between the source and the drain. The 3D memory device also includes a peripheral circuit configured to erase the plurality of memory cells. To erase the plurality of memory cells, the peripheral circuit includes a word line driving circuit configured to apply a positive bias voltage on the dummy memory layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Three-dimensional memory device erase operation","description":"Implementations of the present disclosure provide 3D memory devices and methods for operating the 3D memory devices. In an example, a 3D memory device includes a plurality of memory layers and a dummy","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11521988","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-11521988","citation_suggestion":"Patentable. \"Three-dimensional memory device erase operation\" (US-11521988). https://patentable.app/patents/US-11521988","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11521988","json":"https://patentable.app/api/llm-context/US-11521988","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T16:25:51.960Z"}