Patents by Inventor Roberto Irizarry

Roberto Irizarry 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).

  • Methods using silver compositions for micro-deposition direct writing silver conductor lines on photovoltaic wafers
    Patent number: 8008179
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: August 30, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Ollivier
  • SILVER THICK FILM PASTE COMPOSITIONS AND THEIR USE IN CONDUCTORS FOR PHOTOVOLTAIC CELLS
    Publication number: 20110048527
    Abstract: This invention provides a silver thick film paste composition comprising a silver powder comprising silver particles, each said silver particle comprising silver components 100-2000 nm long, 20-100 nm wide and 20-100 nm thick assembled to form a spherically-shaped, open-structured particle, wherein the d50 particle size is from about 2.5 ?m to about 6 ?m. There is also provided a method of making a semiconductor device, and in particular a solar cell, using the silver thick film paste composition to form a front side electrode.
    Type: Application
    Filed: April 30, 2010
    Publication date: March 3, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Roberto Irizarry, Diptarka Majumdar
  • DEVICES CONTAINING SILVER COMPOSITIONS DEPOSITED BY MICRO-DEPOSITION DIRECT WRITING SILVER CONDUCTOR LINES
    Publication number: 20100301479
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Olliver
  • METHODS USING SILVER COMPOSITIONS FOR MICRO-DEPOSITION DIRECT WRITING SILVER CONDUCTOR LINES ON PHOTOVOLTAIC WAFERS
    Publication number: 20100304558
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 2, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Ollivier
  • SILVER PARTICLES AND PROCESSES FOR MAKING THEM
    Publication number: 20100279116
    Abstract: A silver powder comprising silver particles, each silver particle comprising silver components 100-2000 nm long, 20-100 nm wide and 20-100 nm thick assembled to form a spherically-shaped, open-structured particle, wherein the d50 particle size is from about 2.5 ?m to about 6 ?m is disclosed. Also disclosed is a process for making these silver particles. The silver particles formed are particularly useful in electronic applications.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Roberto Irizarry
  • SILVER PARTICLES AND PROCESSES FOR MAKING THEM
    Publication number: 20100276647
    Abstract: There is disclosed a silver powder comprising silver particles, each said silver particle comprising silver components 100-500 nm long, 80-100 nm wide, and 80-100 nm thick, assembled on the surface of silver to form a spherically-shaped, open structured particle, wherein the surface of the particle resembles the surface of an orange rind and the d50 particle size is from about 2.5 ?m to about 6 ?m. Also disclosed is a process for making these silver particles. The silver particles formed are particularly useful in electronic applications.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Roberto Irizarry
  • Process for making highly dispersible spherical silver powder particles and silver particles formed therefrom
    Patent number: 7648557
    Abstract: Disclosed is an improved process for making highly dispersible, spherical silver particles. In particular, the invention is directed to a process for making silver particles, which are very high solids and highly ordered. The silver particles formed are particularly useful in electronic applications.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: January 19, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Roberto Irizarry-Rivera, Howard David Glicksman, Victor M. Rivera Alvarado
  • SILVER COMPOSITION FOR MICRO-DEPOSITION DIRECT WRITING SILVER CONDUCTOR LINES ON PHOTOVOLTAIC WAFERS
    Publication number: 20090294741
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 3, 2009
    Applicant: E.I.DU PONT NEMOURS AND COMPANY
    Inventors: Haixin Yang, Roberto Irizarry, Patricia J. Ollivier
  • Process for making highly dispersible spherical silver powder particles and silver particles formed therefrom
    Publication number: 20080028889
    Abstract: Disclosed is an improved process for making highly dispersible, spherical silver particles. In particular, the invention is directed to a process for making silver particles, which are very high solids and highly ordered. The silver particles formed are particularly useful in electronic applications.
    Type: Application
    Filed: May 31, 2007
    Publication date: February 7, 2008
    Inventors: Roberto Irizarry-Rivera, Howard Glicksman, Victor Alvarado