Patents Represented by Attorney Wiliam D. Gill
  • Patent number: 7119976
    Abstract: A planar servo verifier head is provided comprising a plurality of magnetic head elements optimized for the readback process. The plurality of magnetic head elements are fabricated in a planar two-dimensional array in which individual elements can be used to read servo format tracks spaced across the width of a magnetic tape. In one embodiment, the magnetic head element comprises a read transducer formed of one or more turns of a sense wire inductively coupled to a magnetic yoke in a trench formed on the transducing surface of a substrate. In another embodiment, the magnetic head element comprises a read transducer formed of a thin film magnetoresistive sensor coupled to a magnetic flux guide in a trench formed on the transducing surface of a substrate. According to the method for manufacturing an embodiment of the servo verifier read head for magnetic tape recording, a plurality of trenches are formed in a nonmagnetic substrate wafer, preferably, a ceramic wafer.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: October 10, 2006
    Assignee: International Business Machines Corporation
    Inventors: Robert Glenn Biskeborn, Leif Stefan Kirschenbaum, Mark Allan Taylor