Patents by Inventor Abu Sabastian

Abu Sabastian 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).

  • Programming multi-level phase change memory cells
    Patent number: 8441847
    Abstract: A method and a feedback controller for programming at least one multi-level phase-change memory cell with a programming signal. The method and feedback controller include a sequence of write pulses applied to the multi-level phase change memory cell, wherein the feedback controller adjusts in real time at least one parameter of each write pulse as a function of a determined resistance error of the phase-change memory cell with respect to a desired reference resistance level.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: May 14, 2013
    Assignee: International Business Machines Corporation
    Inventors: Evangelos S Eleftheriou, Angeliki Pantazi, Nikolaos Papandreou, Charalampos Pozidis, Abu Sabastian
  • PROGRAMMING MULTI-LEVEL PHASE CHANGE MEMORY CELLS
    Publication number: 20110069539
    Abstract: A method and a feedback controller for programming at least one multi-level phase-change memory cell with a programming signal. The method and feedback controller include a sequence of write pulses applied to the multi-level phase change memory cell, wherein the feedback controller adjusts in real time at least one parameter of each write pulse as a function of a determined resistance error of the phase-change memory cell with respect to a desired reference resistance level.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 24, 2011
    Applicant: International Business Machines Corporation
    Inventors: Evangelos S. Eleftheriou, Angeliki Pantazi, Nikolaos Papandreou, Charalampos Pozidis, Abu Sabastian