{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8484830","patent":{"patent_number":"US-8484830","title":"Method of manufacturing a CPP structure with enhanced GMR ratio","assignee":null,"inventors":[],"filing_date":"2011-04-04T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["B82Y","G11B"],"num_claims":9,"abstract":"A CPP-GMR spin valve having a CoFe/NiFe composite free layer is disclosed in which Fe content of the CoFe layer ranges from 20 to 70 atomic % and Ni content in the NiFe layer varies, from 85 to 100 atomic % to maintain low Hc and λs values. A small positive magnetostriction value in a Co75Fe25 layer is used to offset a negative magnetostriction value in a Ni90Fe10layer. The CoFe layer is deposited on a sensor stack in which a seed layer, AFM layer, pinned layer, and non-magnetic spacer layer are sequentially formed on a substrate. After a NiFe layer and capping layer are sequentially deposited on the CoFe layer, the sensor stack is patterned to give a sensor element with top and bottom surfaces and a sidewall connecting the top and bottom surfaces. Thereafter, a dielectric layer is formed adjacent to the sidewalls."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of manufacturing a CPP structure with enhanced GMR ratio","description":"A CPP-GMR spin valve having a CoFe/NiFe composite free layer is disclosed in which Fe content of the CoFe layer ranges from 20 to 70 atomic % and Ni content in the NiFe layer varies, from 85 to 100 at","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8484830","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-8484830","citation_suggestion":"Patentable. \"Method of manufacturing a CPP structure with enhanced GMR ratio\" (US-8484830). https://patentable.app/patents/US-8484830","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8484830","json":"https://patentable.app/api/llm-context/US-8484830","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:01:48.547Z"}