{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10482908","patent":{"patent_number":"US-10482908","title":"Performance monitoring of a near-field transducer of a heat-assisted magnetic recording slider","assignee":null,"inventors":[],"filing_date":"2018-11-16T00:00:00.000Z","publication_date":"2019-11-19T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B"],"num_claims":20,"abstract":"An apparatus comprises a laser diode configured to generate light during a write operation. A slider comprises a near-field transducer (NFT) and an optical waveguide. The slider is configured for heat-assisted magnetic recording and to communicate the light to the NFT via the waveguide. A writer heater of the slider is configured to receive power during the write operation. A thermal sensor is situated at or near an air bearing surface of the slider. The thermal sensor is configured to produce a sensor signal in response to sensing back-heating from the medium while the NFT generates heat during a write operation. Circuitry, coupled to the thermal sensor, is configured to compare the sensor signal to a threshold and generate an output signal indicative of degradation of NFT performance in response to the sensor signal exceeding the threshold."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Performance monitoring of a near-field transducer of a heat-assisted magnetic recording slider","description":"An apparatus comprises a laser diode configured to generate light during a write operation. A slider comprises a near-field transducer (NFT) and an optical waveguide. The slider is configured for heat","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10482908","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-10482908","citation_suggestion":"Patentable. \"Performance monitoring of a near-field transducer of a heat-assisted magnetic recording slider\" (US-10482908). https://patentable.app/patents/US-10482908","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10482908","json":"https://patentable.app/api/llm-context/US-10482908","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T15:49:03.013Z"}