{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9589972","patent":{"patent_number":"US-9589972","title":"Ultraviolet-erasable nonvolatile semiconductor device","assignee":null,"inventors":[],"filing_date":"2014-01-22T00:00:00.000Z","publication_date":"2017-03-07T00:00:00.000Z","cpc_codes":["H01L","H01L","H01L"],"num_claims":6,"abstract":"An ultraviolet-erasable nonvolatile semiconductor device has a protective film comprised of a silicon nitride film on which is laminated a silicon oxynitride film. The silicon nitride film has a thickness of 1000 Å or more and 2000 Å or less and the silicon oxynitride film has a thickness of about 7000 Å or more. The silicon nitride film and the silicon oxynitride film cooperate to prevent moisture from penetrating into the ultraviolet-erasable nonvolatile semiconductor device. The thickness of the silicon nitride film is set so that the time for erasing data in a nonvolatile semiconductor storage element through irradiation with ultraviolet rays is not increased."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ultraviolet-erasable nonvolatile semiconductor device","description":"An ultraviolet-erasable nonvolatile semiconductor device has a protective film comprised of a silicon nitride film on which is laminated a silicon oxynitride film. The silicon nitride film has a thick","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9589972","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-9589972","citation_suggestion":"Patentable. \"Ultraviolet-erasable nonvolatile semiconductor device\" (US-9589972). https://patentable.app/patents/US-9589972","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9589972","json":"https://patentable.app/api/llm-context/US-9589972","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:37:40.815Z"}