{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9779830","patent":{"patent_number":"US-9779830","title":"Non-volatile semiconductor memory device and erase method thereof","assignee":null,"inventors":[],"filing_date":"2016-08-10T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["G11C","G11C","G11C","G11C"],"num_claims":8,"abstract":"Provided is an erase method for a non-volatile semiconductor memory device to compensate for the change in property of a memory cell, in proportion to the number of data rewrites to the memory cell. The erase method has an erase step to erase charges of a charge accumulation layer by applying an erase voltage to a channel region of a selected memory cell, and a soft-programming step to perform soft-programming to the charges in the accumulation layer by virtue of applying a soft-programming voltage which is smaller than a programming voltage to program the memory cell. The erase voltage is increased step by step when it is applied repeatedly. The soft-programming voltage is decreased step by step when it is applied repeatedly."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Non-volatile semiconductor memory device and erase method thereof","description":"Provided is an erase method for a non-volatile semiconductor memory device to compensate for the change in property of a memory cell, in proportion to the number of data rewrites to the memory cell. T","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9779830","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-9779830","citation_suggestion":"Patentable. \"Non-volatile semiconductor memory device and erase method thereof\" (US-9779830). https://patentable.app/patents/US-9779830","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9779830","json":"https://patentable.app/api/llm-context/US-9779830","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:19:40.948Z"}