Patents by Inventor Assefa Solomon

Assefa Solomon 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).

  • Process for selectively patterning a magnetic film structure
    Patent number: 8105850
    Abstract: Processes for selectively patterning a magnetic film structure generally include selectively etching an exposed portion of a freelayer disposed on a tunnel barrier layer by a wet process, which includes exposing the freelayer to an etchant solution comprising at least one acid and an organophosphorus acid inhibitor or salt thereof, stopping on the tunnel barrier layer.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: January 31, 2012
    Assignee: International Business Machines Corporation
    Inventors: David W. Abraham, Assefa Solomon, Eugene J. O'Sullivan