Patents by Inventor Charu Tejwani

Charu Tejwani 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: 9257361
    Abstract: Methods and structures for thermoelectric cooling of 3D semiconductor structures are disclosed. Thermoelectric vias (TEVs) to form a thermoelectric cooling structure. The TEVs are formed with an etch process similar to that used in forming electrically active through-silicon vias (TSVs). However, the etched cavities are filled with materials that exhibit the thermoelectric effect, instead of a conductive metal as with a traditional electrically active TSV. The thermoelectric materials are arranged such that when a voltage is applied to them, the thermoelectric cooling structure carries heat away from the interior of the structure from the junction where the thermoelectric materials are electrically connected.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 9, 2016
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Mukta G. Farooq, Emily Kinser, JoAnn M. Rolick-DiGiacomio, Charu Tejwani
  • Publication number: 20150059361
    Abstract: Methods and structures for thermoelectric cooling of 3D semiconductor structures are disclosed. Thermoelectric vias (TEVs) to form a thermoelectric cooling structure. The TEVs are formed with an etch process similar to that used in forming electrically active through-silicon vias (TSVs). However, the etched cavities are filled with materials that exhibit the thermoelectric effect, instead of a conductive metal as with a traditional electrically active TSV. The thermoelectric materials are arranged such that when a voltage is applied to them, the thermoelectric cooling structure carries heat away from the interior of the structure from the junction where the thermoelectric materials are electrically connected.
    Type: Application
    Filed: November 4, 2014
    Publication date: March 5, 2015
    Applicant: International Business Machines Corporation
    Inventors: Mukta G. Farooq, Emily Kinser, JoAnn M. Rolick-DiGiacomio, Charu Tejwani
  • Patent number: 8933562
    Abstract: Methods and structures for thermoelectric cooling of 3D semiconductor structures are disclosed. Thermoelectric vias (TEVs) to form a thermoelectric cooling structure. The TEVs are formed with an etch process similar to that used in forming electrically active through-silicon vias (TSVs). However, the etched cavities are filled with materials that exhibit the thermoelectric effect, instead of a conductive metal as with a traditional electrically active TSV. The thermoelectric materials are arranged such that when a voltage is applied to them, the thermoelectric cooling structure carries heat away from the interior of the structure from the junction where the thermoelectric materials are electrically connected.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: January 13, 2015
    Assignee: International Business Machines Corporation
    Inventors: Emily Kinser, Mukta G. Farooq, JoAnn M. Rolick-DiGiacomio, Charu Tejwani
  • Publication number: 20140203433
    Abstract: Methods and structures for thermoelectric cooling of 3D semiconductor structures are disclosed. Thermoelectric vias (TEVs) to form a thermoelectric cooling structure. The TEVs are formed with an etch process similar to that used in forming electrically active through-silicon vias (TSVs). However, the etched cavities are filled with materials that exhibit the thermoelectric effect, instead of a conductive metal as with a traditional electrically active TSV. The thermoelectric materials are arranged such that when a voltage is applied to them, the thermoelectric cooling structure carries heat away from the interior of the structure from the junction where the thermoelectric materials are electrically connected.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Emily Kinser, Mukta G. Farooq, JoAnn M. Rolick-DiGiacomio, Charu Tejwani