Patents by Inventor Yueli Wang

Yueli Wang 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: 20100258165
    Abstract: The invention relates to glass compositions useful in conductive pastes for silicon semiconductor devices and photovoltaic cells.
    Type: Application
    Filed: April 8, 2010
    Publication date: October 14, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Alan Frederick Carroll, Brian J. Laughlin, Kenneth Warren Hang, Yueli Wang
  • Publication number: 20100258166
    Abstract: The invention relates to glass compositions useful in conductive pastes for silicon semiconductor devices and photovoltaic cells.
    Type: Application
    Filed: April 8, 2010
    Publication date: October 14, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Brian J. Laughlin, Alan Frederick Carroll, Kenneth Warren Hang, Yueli Wang, Takuya Konno
  • Patent number: 7731812
    Abstract: Methods of forming a multilayer circuit comprising: a) forming a patterned array of vias in a plurality of layers of green tape; b) filling the vias in one or more of the green tape layers from (a); c) printing over at least one surface of the green tape layers from step (b) with at least one patterned layer of a thick film composition consisting essentially of: i) electrically conductive powder; ii) an inorganic binder wherein the inorganic binder is selected from TiO2 and any compounds that can generate TiO2 during firing and any one of the following compounds: Sb2O3, Co3O4, PbO, Fe2O3, SnO2, MnO, CuO and mixtures thereof; and iii) an organic medium, ?wherein the total inorganic binder is in the range of 0.6 wt. % to about 2 wt. % of the total composition. d) laminating the printed green tape layers from step (d) to form an assemblage comprising a plurality of unfired interconnected functional layers separated by unfired green tape; and e) cofiring the assemblage from step (d).
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: June 8, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yueli Wang, Christopher R. Needes, Patricia J. Ollivier
  • Publication number: 20090266409
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive paste for use in the front side of a solar cell device.
    Type: Application
    Filed: April 13, 2009
    Publication date: October 29, 2009
    Applicant: E.I.DU PONT DE NEMOURS AND COMPANY
    Inventors: YUELI Wang, ALAN Frederick Carroll
  • Patent number: 7556748
    Abstract: The present invention is directed to a thick film conductive composition comprising: (a) electrically conductive silver powder; (b) Zn-containing additive wherein the particle size of said zinc-containing additive is in the range of 7 nanometers to less than 100 nanometers; (c) glass frit wherein said glass frit has a softening point in the range of 300 to 600° C.; dispersed in (d) organic medium. The present invention is further directed to a semiconductor device and a method of manufacturing a semiconductor device from a structural element composed of a semiconductor having a p-n junction and an insulating film formed on a main surface of the semiconductor comprising the steps of (a) applying onto said insulating film the thick film composition as describe above; and (b) firing said semiconductor, insulating film and thick film composition to form an electrode.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: July 7, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Yueli Wang, Richard John Sheffield Young, Alan Frederick Carroll, Kenneth Warren Hang
  • Publication number: 20090101199
    Abstract: The present invention is directed to a thick film conductive composition comprising: (a) electrically conductive silver powder; (c) fluorine-containing glass frit; dispersed in (d) organic vehicle and devices made therefrom.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 23, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: ALAN FREDERICK CARROLL, KENNETH WARREN HANG, BRIAN J. LAUGHLIN, YUELI WANG
  • Patent number: 7494607
    Abstract: The present invention is directed to an electroconductive thick film composition comprising: (a) electroconductive metal particles selected from (1) Al, Cu, Au, Ag, Pd and Pt; (2) alloy of Al, Cu, Au, Ag, Pd and Pt; and (3) mixtures thereof; (3) glass frit wherein said glass frit is Pb-free; dispersed in (d) an organic medium, and wherein the average diameter of said electroconductive metal particles is in the range of 0.5-10.0 ?m. The present invention is further directed to an electrode formed from the composition as detailed above and a semiconductor device(s) (for example, a solar cell) comprising said electrode.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: February 24, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yueli Wang, Kenneth Warren Hang
  • Patent number: 7462304
    Abstract: The present invention is directed to a thick film conductive composition comprising: (a) electrically conductive silver powder; (b) Mn-containing additive; (c) glass frit wherein said glass frit has a softening point in the range of 300 to 600° C.; dispersed in (d) organic medium. The present invention is further directed to a semiconductor device and a method of manufacturing a semiconductor device from a structural element composed of a semiconductor having a p-n junction and an insulating film formed on a main surface of the semiconductor comprising the steps of (a) applying onto said insulating film the thick film composition as describe above; and (b) firing said semiconductor, insulating film and thick film composition to form an electrode.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 9, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yueli Wang, Alan Frederick Carroll, Kenneth Warren Hang, Richard John Sheffield Young
  • Publication number: 20080223446
    Abstract: The present invention is directed to a thick film conductive composition comprising: (a) electrically conductive silver powder; (b) Zn-containing additive wherein the particle size of said zinc-containing additive is in the range of 7 nanometers to less than 100 nanometers; (c) glass frit wherein said glass frit has a softening point in the range of 300 to 600° C.; dispersed in (d) organic medium. The present invention is further directed to a semiconductor device and a method of manufacturing a semiconductor device from a structural element composed of a semiconductor having a p-n junction and an insulating film formed on a main surface of the semiconductor comprising the steps of (a) applying onto said insulating film the thick film composition as describe above; and (b) firing said semiconductor, insulating film and thick film composition to form an electrode.
    Type: Application
    Filed: May 28, 2008
    Publication date: September 18, 2008
    Applicant: E.I. du Pont de Nemours and Company
    Inventors: YUELI WANG, Richard John Sheffield Young, Alan Frederick Carroll, Kenneth Warren Hang
  • Publication number: 20080029202
    Abstract: Methods of forming a multilayer circuit comprising: a) forming a patterned array of vias in a plurality of layers of green tape; b) filling the vias in one or more of the green tape layers from (a); c) printing over at least one surface of the green tape layers from step (b) with at least one patterned layer of a thick film composition consisting essentially of: i) electrically conductive powder; ii) an inorganic binder wherein the inorganic binder is selected from TiO2 and any compounds that can generate TiO2 during firing and any one of the following compounds: Sb2O3, Co3O4, PbO, Fe2O3, SnO2, MnO, CuO and mixtures thereof; and iii) an organic medium, ?wherein the total inorganic binder is in the range of 0.6 wt. % to about 2 wt. % of the total composition. d) laminating the printed green tape layers from step (d) to form an assemblage comprising a plurality of unfired interconnected functional layers separated by unfired green tape; and e) cofiring the assemblage from step (d).
    Type: Application
    Filed: October 17, 2007
    Publication date: February 7, 2008
    Applicant: E.I. DU PONT DE NEMOURS
    Inventors: YUELI WANG, CHRISTOPHER NEEDES, PATRICIA OLLIVIER
  • Patent number: 7303698
    Abstract: A thick film composition consisting essentially of: a) electrically conductive powder; b) an inorganic binder wherein the inorganic binder is selected from TiO2 and any compounds that can generate TiO2 during firing and any one of the following compounds: Sb2O3, CO3O4, PbO, Fe2O3, SnO2, ZrO2, MnO, CuOx and mixtures thereof; and c) an organic medium.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: December 4, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Yueli Wang, Christopher R. Needes, Patricia J. Ollivier
  • Patent number: 7261841
    Abstract: A thick film composition consisting essentially of: a) electrically conductive powder; b) an inorganic binder wherein the inorganic binder is selected from TiO2 and any compounds that can generate TiO2 during firing; and c) an organic medium.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: August 28, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Yueli Wang, Christopher R. Needes, Patricia J. Ollivier
  • Publication number: 20060231803
    Abstract: The present invention is directed to an electroconductive thick film composition comprising: (a) electroconductive metal particles selected from (1) Al, Cu, Au, Ag, Pd and Pt; (2) alloy of Al, Cu, Au, Ag, Pd and Pt; and (3) mixtures thereof; (3) glass frit wherein said glass frit is Pb-free; dispersed in (d) an organic medium, and wherein the average diameter of said electroconductive metal particles is in the range of 0.5-10.0 ?m. The present invention is further directed to an electrode formed from the composition as detailed above and a semiconductor device(s) (for example, a solar cell) comprising said electrode.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Inventors: Yueli Wang, Kenneth Hang
  • Publication number: 20060231800
    Abstract: The present invention is directed to a thick film conductive composition comprising: (a) electrically conductive silver powder; (b) Mn-containing additive; (c) glass frit wherein said glass frit has a softening point in the range of 300 to 600° C.; dispersed in (d) organic medium. The present invention is further directed to a semiconductor device and a method of manufacturing a semiconductor device from a structural element composed of a semiconductor having a p-n junction and an insulating film formed on a main surface of the semiconductor comprising the steps of (a) applying onto said insulating film the thick film composition as describe above; and (b) firing said semiconductor, insulating film and thick film composition to form an electrode.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Inventors: Yueli Wang, Alan Carroll, Kenneth Hang, Richard Young
  • Publication number: 20060231804
    Abstract: The present invention is directed to a thick film conductive composition comprising: (a) electrically conductive silver powder; (b) Zn-containing additive wherein the particle size of said zinc-containing additive is in the range of 7 nanometers to less than 100 nanometers; (c) glass frit wherein said glass frit has a softening point in the range of 300 to 600° C.; dispersed in (d) organic medium. The present invention is further directed to a semiconductor device and a method of manufacturing a semiconductor device from a structural element composed of a semiconductor having a p-n junction and an insulating film formed on a main surface of the semiconductor comprising the steps of (a) applying onto said insulating film the thick film composition as describe above; and (b) firing said semiconductor, insulating film and thick film composition to form an electrode.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Inventors: Yueli Wang, Richard John Young, Alan Carroll, Kenneth Hang
  • Publication number: 20050104046
    Abstract: A thick film composition consisting essentially of: a) electrically conductive powder; b) an inorganic binder wherein the inorganic binder is selected from TiO2 and any compounds that can generate TiO2 during firing and any one of the following compounds: Sb2O3, CO3O4, PbO, Fe2O3, SnO2, ZrO2, MnO, CuOx and mixtures thereof; and c) an organic medium.
    Type: Application
    Filed: October 19, 2004
    Publication date: May 19, 2005
    Inventors: Yueli Wang, Christopher Needes, Patricia Ollivier
  • Publication number: 20050106369
    Abstract: A thick film composition consisting essentially of: a) electrically conductive powder; b) an inorganic binder wherein the inorganic binder is selected from TiO2 and any compounds that can generate TiO2 during firing; and c) an organic medium.
    Type: Application
    Filed: October 19, 2004
    Publication date: May 19, 2005
    Inventors: Yueli Wang, Christopher Needes, Patricia Ollivier
  • Publication number: 20040245508
    Abstract: The invention is directed to a conductive thick film composition for use on an aluminum nitride substrate that utilizes a boron containing reactant and a metal oxide to promote adhesion.
    Type: Application
    Filed: March 4, 2004
    Publication date: December 9, 2004
    Inventors: Yueli Wang, Alan Frederick Carroll
  • Patent number: 6689910
    Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: February 10, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson
  • Publication number: 20030212225
    Abstract: Olefins containing selected functional groups such as silyl, ether and alkenyl, and often containing a blocking group, may be copolymerized with unsubstituted olefins such as ethylene and propylene in the presence of certain coordination compounds of nickel or palladium. The resulting polymers are useful as molding resins, elastomers, in adhesives and for films.
    Type: Application
    Filed: May 12, 2003
    Publication date: November 13, 2003
    Inventors: Lin Wang, Samuel David Arthur, Elizabeth Forrester McCord, Yueli Wang, Peter Arnold Morken, Lynda Kaye Johnson