{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9837103","patent":{"patent_number":"US-9837103","title":"Polycrystalline dielectric coating for cobalt iron alloy thin films","assignee":null,"inventors":[],"filing_date":"2016-05-16T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B"],"num_claims":20,"abstract":"In one general embodiment, an apparatus includes a magnetic transducer having a CoFe layer and an at least partially polycrystalline alumina-containing coating on a media facing side of the CoFe layer. A graded layer comprising Co, Fe, Al and oxygen is positioned between the alumina-containing coating and the CoFe layer, wherein a ratio of Co to Al in the graded layer decreases from the CoFe layer toward the alumina-containing coating. In another general embodiment, an apparatus includes a magnetic transducer having a CoFe layer and an at least partially polycrystalline alumina-containing coating on a media facing side of the CoFe layer. CoFe-oxide crystallites are present at an interface region of the CoFe layer and the alumina-containing coating and the CoFe layer. Fabrication methods are also presented."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Polycrystalline dielectric coating for cobalt iron alloy thin films","description":"In one general embodiment, an apparatus includes a magnetic transducer having a CoFe layer and an at least partially polycrystalline alumina-containing coating on a media facing side of the CoFe layer","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9837103","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-9837103","citation_suggestion":"Patentable. \"Polycrystalline dielectric coating for cobalt iron alloy thin films\" (US-9837103). https://patentable.app/patents/US-9837103","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9837103","json":"https://patentable.app/api/llm-context/US-9837103","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T17:24:54.372Z"}