Patents by Inventor Kristian M. Bjelland

Kristian M. Bjelland has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for making TMR junctions
    Patent number: 6744608
    Abstract: A method and system for providing a tunneling magnetoresistive sensor is disclosed. The method and system include providing a pinned layer, a free layer and an insulating layer between the pinned and free layers. The pinned and free layers are ferromagnetic. The method and system also include providing a hard mask layer to be used in defining the sensor at the top of the tunneling magnetoresistive sensor. The method and system also include using the hard mask layer to define the tunneling magnetoresistive sensor. Thus, the pinned layer, the free layer and the insulating layer are capable of having a minimum dimension of less than 0.2 &mgr;m.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: June 1, 2004
    Assignee: Western Digital (Fremont), Inc.
    Inventors: Kyusik Sin, Kristian M. Bjelland, Benjamin Chen, Hugh C. Hiner, Xizeng Shi