{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9705500","patent":{"patent_number":"US-9705500","title":"Magnetic tunnel junction based chip identification","assignee":null,"inventors":[],"filing_date":"2016-10-05T00:00:00.000Z","publication_date":"2017-07-11T00:00:00.000Z","cpc_codes":["G06F","G06K","G11C","G11C","G11C"],"num_claims":12,"abstract":"The present invention provides integrated circuit chips having chip identification aspects. The chips include magnetic tunnel junction (MTJ) structures, and more specifically, include permanent bit strings used for chip identification and/or authentication. Systems and processes for chip identification are also disclosed herein. The MTJ element structures provided herein can have a defined resistance profile such that the intrinsic variability of the MTJ element structure is used to encode and generate a bit string that becomes a fingerprint for the chip. In some embodiments, an oxygen treatment covering all or a selected portion of an array of MTJ elements can be used to create a mask or secret key that can be used and implemented to enhance chip identification."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Magnetic tunnel junction based chip identification","description":"The present invention provides integrated circuit chips having chip identification aspects. The chips include magnetic tunnel junction (MTJ) structures, and more specifically, include permanent bit st","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9705500","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-9705500","citation_suggestion":"Patentable. \"Magnetic tunnel junction based chip identification\" (US-9705500). https://patentable.app/patents/US-9705500","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9705500","json":"https://patentable.app/api/llm-context/US-9705500","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:15:39.448Z"}