{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11514933","patent":{"patent_number":"US-11514933","title":"Method to enhance magnetic strength and robustness of rear hard bias for dual free layer read","assignee":null,"inventors":[],"filing_date":"2021-08-10T00:00:00.000Z","publication_date":"2022-11-29T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B"],"num_claims":13,"abstract":"The present disclosure generally relates to read heads having dual free layer (DFL) sensors. The read head has a sensor disposed between two shields. The sensor is a DFL sensor and has a surface at the media facing surface (MFS). Recessed from the DFL sensor, and from the MFS, is a rear hard bias (RHB) structure. The RHB structure is disposed between the shields as well. In between the DFL sensor and the RHB structure is insulating material. The RHB is disposed on the insulating material. The RHB includes a RHB seed layer as well as a RHB bulk layer. The RHB bulk layer includes a first bulk layer and a second bulk layer, the first bulk layer having a different density relative to the second bulk layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method to enhance magnetic strength and robustness of rear hard bias for dual free layer read","description":"The present disclosure generally relates to read heads having dual free layer (DFL) sensors. The read head has a sensor disposed between two shields. The sensor is a DFL sensor and has a surface at th","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11514933","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-11514933","citation_suggestion":"Patentable. \"Method to enhance magnetic strength and robustness of rear hard bias for dual free layer read\" (US-11514933). https://patentable.app/patents/US-11514933","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11514933","json":"https://patentable.app/api/llm-context/US-11514933","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T16:51:06.572Z"}