Hollingsworth Davis, LLC
System and method for detecting reader-writer offset in a heat-assisted magnetic recording head
An apparatus comprises a heat-assisted magnetic recording head configured to write to and read from a magnetic recording medium. The head comprises a reader and a writer including a near-field transducer (NFT). The reader comprises a center which is laterally offset relative to a center of the writer to define a reader-writer offset (RWO) therebetween. A magnetic recording medium comprises a plurality of tracks. The plurality of tracks comprises at least one track used as a region to test for a shift in the RWO. A processor is coupled to the recording head and configured to detect the RWO shift.
SEAGATE TECHNOLOGY LLC
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Mark Allen Jason C. Jon Tim
Gaertner Jury Trantham Rausch