{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9747930","patent":{"patent_number":"US-9747930","title":"Tunnel valve read sensor with crystalline alumina tunnel barrier deposited using room temperature techniques","assignee":null,"inventors":[],"filing_date":"2015-12-07T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":17,"abstract":"In one general embodiment, an apparatus includes a magnetic tunnel junction device having a reference layer, a free layer, and a tunnel barrier layer between the free and reference layers. The tunnel barrier layer is primarily crystalline alumina. In another general embodiment, a method includes forming a first magnetic layer, forming a tunnel barrier layer above the first magnetic layer, and forming a second magnetic layer above the tunnel barrier layer. The tunnel barrier layer includes crystalline alumina. The tunnel barrier layer is formed at a temperature of less than 100 degrees centigrade."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Tunnel valve read sensor with crystalline alumina tunnel barrier deposited using room temperature techniques","description":"In one general embodiment, an apparatus includes a magnetic tunnel junction device having a reference layer, a free layer, and a tunnel barrier layer between the free and reference layers. The tunnel ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9747930","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-9747930","citation_suggestion":"Patentable. \"Tunnel valve read sensor with crystalline alumina tunnel barrier deposited using room temperature techniques\" (US-9747930). https://patentable.app/patents/US-9747930","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9747930","json":"https://patentable.app/api/llm-context/US-9747930","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:40:13.771Z"}