Patents by Inventor Ijeoma M. Nnebe

Ijeoma M. Nnebe 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).

  • Patent number: 9249315
    Abstract: A release film for soft composite materials is provided. The release film contains a film with a closely packed self-assembled monolayer. A method of applying soft composite materials to a substrate without loss of the soft composite material to the release film is also provided. The method is useful in applications such as applying thermal pastes to semiconductor packaging.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: February 2, 2016
    Assignee: GLOBALFOUNDRIES INC.
    Inventor: Ijeoma M. Nnebe
  • Patent number: 8636931
    Abstract: A method of manufacturing a thermal paste, in which the method includes feeding the thermal paste into a chamber of an extruder; mixing the thermal paste at elevated temperatures; de-airing the thermal paste; and extruding the thermal paste out of the chamber through a die as a pre-form or into a cartridge, such that air channels and pseudo-grain boundaries are prevented from forming in the thermal paste.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: January 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Claudius Feger, Ijeoma M. Nnebe, Maurice McGlashan-Powell
  • Patent number: 8178153
    Abstract: A heat transfer control structure and a method for fabrication thereof includes at least one heat transfer control layer interposed between and contacting a heat source material and a heat sink material. The at least one heat transfer control layer is selected predicated upon thermal phonon spectra overlap between the heat source material, the at least one heat transfer control layer and the heat sink material. The at least one heat transfer control layer may enhance or retard heat transfer between the heat source material and the heat sink material. The at least one heat transfer control layer may be selected based upon a value of a thermal phonon correlating parameter such as a Debye temperature, a density or a lattice constant.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: May 15, 2012
    Assignee: International Business Machines Corporation
    Inventors: Claudius Feger, Maurice McGlashan-Powell, Ijeoma M. Nnebe
  • Patent number: 7981849
    Abstract: A reversible thermal thickening grease for microelectronic packages, in which the grease contains filler particles; at least one polymer; and a binder; in which the filler particles are dispersed within the binder, in which one or more segments of the at least one polymer may be attached to the filler particles prior to dispersion in the binder, and in which the polymer collapses at temperatures below a Theta temperature and swells at temperatures above a Theta temperature. During the operation of a microelectronic package, grease pump-out and air proliferation are minimized with use of the reversible thermal thickening grease, while grease fluidity is retained under repetitive thermal stresses.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: July 19, 2011
    Assignee: International Business Machines Corporation
    Inventors: Claudius Feger, Jeffrey D. Gelorme, Sushumna Iruvanti, Rajneesh Kumar, Ijeoma M. Nnebe
  • Patent number: 7739218
    Abstract: Systems and methods are provided for building and implementing ontology-based information resources. More specifically, multi-user collaborative, semi-automatic systems and methods are provided for constructing ontology-based information resources that are shared by a community of users, wherein ontology categories evolve over time based on categorization rules that are specified by the community of users as well as categorization rules that are automatically learned from knowledge obtained as a result of multi-user interactions and categorization decisions.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: June 15, 2010
    Assignee: International Business Machines Corporation
    Inventors: Juan Fernando Argüello, Youssef Drissi, Nicholas C. M. Fuller, Ijeoma M. Nnebe, Daby M. Sow
  • Publication number: 20090302460
    Abstract: A release film for soft composite materials is provided. The release film contains a film with a closely packed self-assembled monolayer. A method of applying soft composite materials to a substrate without loss of the soft composite material to the release film is also provided. The method is useful in applications such as applying thermal pastes to semiconductor packaging.
    Type: Application
    Filed: August 19, 2009
    Publication date: December 10, 2009
    Applicant: IBM Corporation
    Inventor: Ijeoma M. Nnebe
  • Publication number: 20080284052
    Abstract: A method of manufacturing a thermal paste, in which the method includes feeding the thermal paste into a chamber of an extruder; mixing the thermal paste at elevated temperatures; de-airing the thermal paste; and extruding the thermal paste out of the chamber through a die as a pre-form or into a cartridge, such that air channels and pseudo-grain boundaries are prevented from forming in the thermal paste.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 20, 2008
    Applicant: IBM CORPORATION (YORKTOWN)
    Inventors: Claudius Feger, Ijeoma M. Nnebe, Maurice McGlashan-Powell
  • Publication number: 20080220998
    Abstract: A reversible thermal thickening grease for microelectronic packages, in which the grease contains filler particles; at least one polymer; and a binder; in which the filler particles are dispersed within the binder, in which one or more segments of the at least one polymer may be attached to the filler particles prior to dispersion in the binder, and in which the polymer collapses at temperatures below a Theta temperature and swells at temperatures above a Theta temperature. During the operation of a microelectronic package, grease pump-out and air proliferation are minimized with use of the reversible thermal thickening grease, while grease fluidity is retained under repetitive thermal stresses.
    Type: Application
    Filed: March 8, 2007
    Publication date: September 11, 2008
    Applicant: IBM CORPORATION (YORKTOWN)
    Inventors: Claudius Feger, Jeffrey D. Gelorme, Sushumna Iruvanti, Rajneesh Kumar, Ijeoma M. Nnebe
  • Publication number: 20080173994
    Abstract: A release film for soft composite materials is provided. The release film contains a film with a closely packed self-assembled monolayer. A method of applying soft composite materials to a substrate without loss of the soft composite material to the release film is also provided. The method is useful in applications such as applying thermal pastes to semiconductor packaging.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 24, 2008
    Applicant: International Business Machines Corporation
    Inventor: Ijeoma M. Nnebe