{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11239414","patent":{"patent_number":"US-11239414","title":"Physical unclonable function for MRAM structures","assignee":null,"inventors":[],"filing_date":"2020-03-24T00:00:00.000Z","publication_date":"2022-02-01T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L"],"num_claims":20,"abstract":"An integrated circuit including a memory array and a physical unclonable function array is obtained by causing metal back sputtering in specific regions of the integrated circuit during ion beam etch. MRAM pillars within the memory array have larger widths than the underlying bottom electrodes while those within the physical unclonable function array have smaller widths than the underlying bottom electrodes. Metal residue deposited over tunnel barrier layers causes random electrical shorting of some of the MRAM pillars within the physical unclonable function array."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Physical unclonable function for MRAM structures","description":"An integrated circuit including a memory array and a physical unclonable function array is obtained by causing metal back sputtering in specific regions of the integrated circuit during ion beam etch.","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11239414","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-11239414","citation_suggestion":"Patentable. \"Physical unclonable function for MRAM structures\" (US-11239414). https://patentable.app/patents/US-11239414","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11239414","json":"https://patentable.app/api/llm-context/US-11239414","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:39:44.511Z"}