{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520457","patent":{"patent_number":"US-8520457","title":"Semiconductor device","assignee":null,"inventors":[],"filing_date":"2012-01-27T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["G11C","G11C","G11C"],"num_claims":19,"abstract":"An object is to provide a semiconductor device having a memory which can efficiently improve a yield by employing a structure which facilitates the use of a spare memory cell. The semiconductor device includes a memory cell array having a memory cell and a spare memory cell, a decoder connected to the memory cell and the spare memory cell, a data holding circuit connected to the decoder, and a battery which supplies electric power to the data holding circuit. The spare memory cell operates in accordance with an output from the data holding circuit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor device","description":"An object is to provide a semiconductor device having a memory which can efficiently improve a yield by employing a structure which facilitates the use of a spare memory cell. The semiconductor device","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520457","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-8520457","citation_suggestion":"Patentable. \"Semiconductor device\" (US-8520457). https://patentable.app/patents/US-8520457","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520457","json":"https://patentable.app/api/llm-context/US-8520457","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T11:52:49.744Z"}