Patents Examined by A. T. Heinz
  • Spin valve sensor with improved magnetic stability of the pinned layer
    Patent number: 5768071
    Abstract: A multilayered spin valve read head including an antiferromagnetic pinning layer and a ferromagnetic pinned layer which can maintain a high pinning field between the layers while minimizing the coercivity of the pinning layer. The apparatus and method of the invention comprise placing a thin discontinuous nonmagnetic interlayer such as Cu between the antiferromagnetic and the ferromagnetic layers.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: June 16, 1998
    Assignee: International Business Machines Corporation
    Inventor: Tsann Lin