Patents Examined by P. W. Echole
  • Patent number: 6470566
    Abstract: To protect the MR read head element from ESD damage during wafer level manufacturing, a lead from the MR element is electrically connected to one or both of the read head element shields during manufacturing. In a preferred embodiment of the present invention, the electrical connection is fabricated in the kerf area between adjacent magnetic heads as they are fabricated upon a wafer substrate. Thereafter, when the magnetic heads are separated by saw cutting through the kerf areas, the electrical connections are thereby removed, such that the MR element electrical leads and the shields are electrically isolated. In an alternative embodiment, one or more of the shields, as well as the MR element leads can also be electrically connected to the substrate upon which the magnetic head is fabricated.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: October 29, 2002
    Assignee: International Business Machines Corporation
    Inventors: Richard Hsiao, Edward Hin Pong Lee, Timothy J. Moran, Joseph Francis Smyth, Howard Gordon Zolla