Patents Represented by Attorney Intellectual Propety Law Offices
  • Patent number: 7088562
    Abstract: A magnetic head including an electrical lead layer that is comprised of a material having an ordered crystalline structure. In a preferred embodiment, the ordered crystalline structure of the electrical lead is epitaxially matched to the crystalline structure of the hard bias layer upon which it is formed, and there is no need for a seed layer for the electrical leads. Electrical leads having an ordered crystalline structure, particularly a B2, L10, L11, L12 and D03 structure, will have significantly reduced resistivity over the prior art electrical leads that are typically composed of rhodium or tantalum. As a result, thinner electrical leads can be fabricated which carry the same, or even greater, current than the prior art rhodium or tantalum leads. The preferred leads are comprised of NiAl having a B2 crystalline structure, and alternative embodiments are comprised of CuAu, Cu3Au, Ni3Al and Fe3Al.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: August 8, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Michael Andrew Parker, Mustafa Michael Pinarbasi