{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8477546","patent":{"patent_number":"US-8477546","title":"Semiconductor memory devices having redundancy arrays","assignee":null,"inventors":[],"filing_date":"2010-01-29T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["G11C"],"num_claims":21,"abstract":"A semiconductor memory device includes a plurality of memory areas. Each of the memory areas includes a normal cell array and a redundancy cell array for repairing defective cells generated in the normal cell array such that the semiconductor memory device is usable even when memory arrays include defective cells. A size of a redundancy cell array of a first memory area is greater than a size of the redundancy cell arrays of the other memory areas."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Semiconductor memory devices having redundancy arrays","description":"A semiconductor memory device includes a plurality of memory areas. Each of the memory areas includes a normal cell array and a redundancy cell array for repairing defective cells generated in the nor","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8477546","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-8477546","citation_suggestion":"Patentable. \"Semiconductor memory devices having redundancy arrays\" (US-8477546). https://patentable.app/patents/US-8477546","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8477546","json":"https://patentable.app/api/llm-context/US-8477546","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T11:51:31.052Z"}