{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9595344","patent":{"patent_number":"US-9595344","title":"Semiconductor memory device capable of shortening erase time","assignee":null,"inventors":[],"filing_date":"2015-01-15T00:00:00.000Z","publication_date":"2017-03-14T00:00:00.000Z","cpc_codes":["G11C","G11C","G11C","G11C"],"num_claims":7,"abstract":"In a memory cell array, a plurality of memory cells connected to a plurality of word lines and a plurality of bit lines are arranged in a matrix. A control circuit controls the potentials of said plurality of word lines and said plurality of bit lines. In an erase operation, the control circuit erases an n number of memory cells (n is a natural number equal to or larger than 2) of said plurality of memory cells at the same time using a first erase voltage, carries out a verify operation using a first verify level, finds the number of cells k (k≦n) exceeding the first verify level, determines a second erase voltage according to the number k, and carries out an erase operation again using the second erase voltage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor memory device capable of shortening erase time","description":"In a memory cell array, a plurality of memory cells connected to a plurality of word lines and a plurality of bit lines are arranged in a matrix. A control circuit controls the potentials of said plur","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9595344","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-9595344","citation_suggestion":"Patentable. \"Semiconductor memory device capable of shortening erase time\" (US-9595344). https://patentable.app/patents/US-9595344","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9595344","json":"https://patentable.app/api/llm-context/US-9595344","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T17:28:06.008Z"}