Patents by Inventor Norma E. Sosa

Norma E. Sosa 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).

  • Publication number: 20120118383
    Abstract: An autonomous integrated circuit (IC) includes a solar cell formed on a bottom substrate of a silicon-on-insulator (SOI) substrate as a handle substrate; an insulating layer of the SOI substrate located on top of the solar cell; and a device layer formed on a top semiconductor layer of the SOI substrate located on top of the insulating layer, wherein a top contact of the device layer is electrically connected to a bottom contact of the solar cell such that the solar cell is enabled to power the device layer.
    Type: Application
    Filed: November 15, 2010
    Publication date: May 17, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen W. Bedell, Norma E. Sosa Cortes, Wilfried E. Haensch, Steven J. Koester, Devendra K. Sadana, Katherine L. Saenger, Ghavam Shahidi, Davood Shahrjerdi
  • Publication number: 20100307591
    Abstract: A method for forming a single-junction photovoltaic cell includes forming a dopant layer on a surface of a semiconductor substrate; diffusing the dopant layer into the semiconductor substrate to form a doped layer of the semiconductor substrate; forming a metal layer over the doped layer, wherein a tensile stress in the metal layer is configured to cause a fracture in the semiconductor substrate; removing a semiconductor layer from the semiconductor substrate at the fracture; and forming the single junction photovoltaic cell using the semiconductor layer. A single-junction photovoltaic cell includes a doped layer comprising a dopant diffused into a semiconductor substrate; a patterned conducting layer formed on the doped layer; a semiconductor layer comprising the semiconductor substrate located on the doped layer on a surface of the doped layer opposite the patterned conducting layer; and an ohmic contact layer formed on the semiconductor layer.
    Type: Application
    Filed: February 26, 2010
    Publication date: December 9, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen W. Bedell, Norma E. Sosa Cortes, Keith E. Fogel, Devendra Sadana, Davood Shahrjerdi, Brent A. Wacaser