Patents by Inventor Stephen T. Connor

Stephen T. Connor 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: 20170148933
    Abstract: Intercalation pastes for use with semiconductor devices are disclosed. The pastes contain precious metal particles, intercalating particles, and an organic vehicle and can be used to improve the material properties of metal particle layers. Specific formulations have been developed to be screen-printed directly onto a dried metal particle layer and fired to make a fired multilayer stack. The fired multilayer stack can be tailored to create a solderable surface, high mechanical strength, and low contact resistance. In some embodiments, the fired multilayer stack can etch through a dielectric layer to improve adhesion to a substrate. Such pastes can be used to increase the efficiency of silicon solar cells, specifically multi- and mono-crystalline silicon back-surface field (BSF), and passivated emitter and rear contact (PERC) photovoltaic cells. Other applications include integrated circuits and more broadly, electronic devices.
    Type: Application
    Filed: November 23, 2016
    Publication date: May 25, 2017
    Inventors: Brian E. Hardin, Erik Sauar, Dhea Suseno, Jesse J. Hinricher, Jennifer Huang, Tom Yu-Tang Lin, Stephen T. Connor, Daniel J. Hellebusch, Craig H. Peters
  • Publication number: 20170148937
    Abstract: Intercalation pastes for use with semiconductor devices are disclosed. The pastes contain precious metal particles, intercalating particles, and an organic vehicle and can be used to improve the material properties of metal particle layers. Specific formulations have been developed to be screen-printed directly onto a dried metal particle layer and fired to make a fired multilayer stack. The fired multilayer stack can be tailored to create a solderable surface, high mechanical strength, and low contact resistance. In some embodiments, the fired multilayer stack can etch through a dielectric layer to improve adhesion to a substrate. Such pastes can be used to increase the efficiency of silicon solar cells, specifically multi- and mono-crystalline silicon back-surface field (BSF), and passivated emitter and rear contact (PERC) photovoltaic cells. Other applications include integrated circuits and more broadly, electronic devices.
    Type: Application
    Filed: November 23, 2016
    Publication date: May 25, 2017
    Inventors: Brian E. Hardin, Erik Sauar, Dhea Suseno, Jesse J. Hinricher, Jennifer Huang, Tom Yu-Tang Lin, Stephen T. Connor, Daniel J. Hellebusch, Craig H. Peters
  • Publication number: 20170058152
    Abstract: Oxidation-resistant electrically-conductive metal particles (ORCMP) are disclosed. ORCMPs are comprised of a base-metal core, an oxidation-resistant first shell, and an optional conductive second shell. ORCMPs are low cost alternatives to silver particles in metal fillers for low-temperature, electrically-conductive adhesives. Adhesives including ORCMPs, organic vehicles, and optional conductive metal particles such as silver were formulated to yield conductive films upon curing at low temperatures. Such films can be used in many electronic devices where low-temperature, low cost films are needed.
    Type: Application
    Filed: August 22, 2016
    Publication date: March 2, 2017
    Inventors: Brian E. Hardin, Stephen T. Connor, Craig H. Peters
  • Publication number: 20170062632
    Abstract: Metallization pastes for use with semiconductor devices are disclosed. The pastes contain silver particles, low-melting-point base-metal particles, organic vehicle, and optional crystallizing agents. Specific formulations have been developed that produce stratified metal films that contain less silver than conventional pastes and that have high peel strengths. Such pastes can be used to make high contact resistance metallization layers on silicon.
    Type: Application
    Filed: August 22, 2016
    Publication date: March 2, 2017
    Inventors: Brian E. Hardin, Stephen T. Connor, James Randy Groves, Craig H. Peters
  • Patent number: 9331216
    Abstract: Materials and methods for fabrication of rear tabbing, front busbar, and fine grid line layers for silicon based photovoltaic cells are disclosed. Materials include conductive metallization pastes that contain core-shell nickel based particles.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: May 3, 2016
    Assignee: PLANT PV, Inc.
    Inventors: Brian E. Hardin, Stephen T. Connor, James Randy Groves, Craig H. Peters
  • Publication number: 20160049541
    Abstract: Multi-crystalline group II-VI solar cells and methods for fabrication of same are disclosed herein. A multi-crystalline group II-VI solar cell includes a first photovoltaic sub-cell comprising silicon, a tunnel junction, and a multi-crystalline second photovoltaic sub-cell. A plurality of the multi-crystalline group II-VI solar cells can be interconnected to form low cost, high throughput flat panel, low light concentration, and/or medium light concentration photovoltaic modules or devices.
    Type: Application
    Filed: June 4, 2015
    Publication date: February 18, 2016
    Inventors: Brian E. Hardin, Stephen T. Connor, James Randy Groves, Craig H. Peters
  • Publication number: 20150243812
    Abstract: Metallization pastes for use with semiconductor devices are disclosed. The pastes contain silver nanoparticles, silver microparticles, and nondeformable inorganic material particles. Specific formulations have been developed that yield printed lines with low porosities and high peel strengths.
    Type: Application
    Filed: May 8, 2015
    Publication date: August 27, 2015
    Inventors: Brian E. Hardin, Stephen T. Connor, James Randy Groves, Craig H. Peters, Jose Marcial Portilla
  • Patent number: 9070811
    Abstract: Multi-crystalline group II-VI solar cells and methods for fabrication of same are disclosed herein. A multi-crystalline group II-VI solar cell includes a first photovoltaic sub-cell comprising silicon, a tunnel junction, and a multi-crystalline second photovoltaic sub-cell. A plurality of the multi-crystalline group II-VI solar cells can be interconnected to form low cost, high throughput flat panel, low light concentration, and/or medium light concentration photovoltaic modules or devices.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: June 30, 2015
    Assignee: PLANT PV, Inc.
    Inventors: Brian E Hardin, Stephen T Connor, James R Groves, Craig H Peters
  • Publication number: 20150083213
    Abstract: Materials and Methods for fabrication of rear tabbing, front busbar, and fine grid line layers for silicon based photovoltaic cells are disclosed. Materials include conductive metallization pastes that contain core-shell nickel based particles.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Brian E. Hardin, Stephen T. Connor, James Randy Groves, Craig H. Peters
  • Publication number: 20150053259
    Abstract: Apparatus and methods to incorporate p-type dopants in II-VI semiconducting layers are disclosed herein. In some embodiments, radical nitrogen is introduced in a physical vapor deposition apparatus operating at moderate pressures (e.g. 10?5 Torr to 100 Torr). The radical nitrogen allows for in-situ doping of II-VI materials, such as ZnTe, to degenerate levels.
    Type: Application
    Filed: August 22, 2014
    Publication date: February 26, 2015
    Applicant: PLANT PV
    Inventors: Brian E. Hardin, James Randy Groves, Stephen T. Connor, Craig H. Peters
  • Publication number: 20140374669
    Abstract: Materials and methods for fabrication of rear tabbing, front busbar, and fine grid line layers for silicon based photovoltaic cells are disclosed. Materials include conductive metallization pastes that contain core-shell nickel based particles.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 25, 2014
    Inventors: Brian E. Hardin, Stephen T. Connor, James Randy Groves, Craig H. Peters
  • Patent number: 8647897
    Abstract: A method for producing and depositing air-stable, easily decomposable, vulcanized ink on any of a wide range of substrates is disclosed. The ink enables high-volume production of optoelectronic and/or electronic devices using scalable production methods, such as roll-to-roll transfer, fast rolling processes, and the like.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: February 11, 2014
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Benjamin D. Weil, Stephen T. Connor, Yi Cui
  • Patent number: 8318604
    Abstract: A method for forming a substrate comprising nanometer-scale pillars or cones that project from the surface of the substrate is disclosed. The method enables control over physical characteristics of the projections including diameter, sidewall angle, and tip shape. The method further enables control over the arrangement of the projections including characteristics such as center-to-center spacing and separation distance.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: November 27, 2012
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yi Cui, Jia Zhu, Ching-Mei Hsu, Stephen T. Connor, Zongfu Yu, Shanhui Fan, George Burkhard
  • Publication number: 20120244650
    Abstract: A method for producing and depositing air-stable, easily decomposable, vulcanized ink on any of a wide range of substrates is disclosed. The ink enables high-volume production of optoelectronic and/or electronic devices using scalable production methods, such as roll-to-roll transfer, fast rolling processes, and the like.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 27, 2012
    Applicant: The Board of Turstees of the Leland Stanford Junior University
    Inventors: Benjamin D. Weil, Stephen T. Connor, Yi Cui
  • Publication number: 20110121431
    Abstract: A method for forming a substrate comprising nanometer-scale pillars or cones that project from the surface of the substrate is disclosed. The method enables control over physical characteristics of the projections including diameter, sidewall angle, and tip shape. The method further enables control over the arrangement of the projections including characteristics such as center-to-center spacing and separation distance.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 26, 2011
    Applicant: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yi Cui, Jia Zhu, Ching-Mei Hsu, Stephen T. Connor, Zongfu Yu, Shanhui Fan, George Burkhard
  • Patent number: 4526778
    Abstract: There is disclosed a dentifrice formulation which is stable in the sense of not producing gassing as evidenced by visually discernable distention over a period of 168 days at 43.degree. C. in an unlined aluminium tube.The formulation comprises an aqueous dentally acceptable oral vehicle at least 27.5% by weight of the dentifrice comprising water and dispersed in the said oral vehicle from 10 to 40% by weight of the dentifrice of a neutral siliceous polishing agent having a stirred slurry pH (as herein defined) in the range from 6.5 to 7.5, and a stabilizing amount of monofluorophosphate ion, the dentifrice having a stirred slurry pH in the range from 5.5 to 8.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: July 2, 1985
    Assignee: Colgate-Palmolive Company
    Inventors: Kenneth Harvey, Stephen T. Connors
  • Patent number: 4459283
    Abstract: Dentifrices containing chloroform and a siliceous agent have been found to cause instability and corrosion in unlined aluminium tubes. A chloroform/siliceous agent dentifrice formulation is disclosed wherein an additive comprising a mixture of phosphate esters is used to reduce or prevent corrosion and thus provide stability.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: July 10, 1984
    Inventors: Kenneth Harvey, Stephen T. Connors
  • Patent number: 4455293
    Abstract: There is disclosed a dentifrice formulation which is stable in the sense of not producing gassing as evidenced by visually discernable distention over a period of 168 days at 43.degree. C. in an unlined aluminium tube.The formulation comprises an aqueous dentally acceptable oral vehicle at least 27.5% by weight of the dentifrice comprising water and dispersed in the said oral vehicle from 10 to 40% by weight of the dentifrice of a neutral siliceous polishing agent having a stirred slurry pH (as herein defined) in the range from 6.5 to 7.5, and a stabilizing amount of monofluorophosphate ion, the dentifrice having a stirred slurry pH in the range from 5.5 to 8.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: June 19, 1984
    Assignee: Colgate-Palmolive Company
    Inventors: Kenneth Harvey, Stephen T. Connors
  • Patent number: 4455294
    Abstract: There is disclosed a dentifrice formulation which is stable in the sense of not producing gassing as evidenced by visually discernable distention over a period of 168 days at 43.degree. C. in an unlined aluminum tube.The formulation comprises an aqueous dentally acceptable oral vehicle at least 27.5% by weight of the dentifrice comprising water and dispersed in the said oral vehicle from 10 to 40% by weight of the dentifrice of a neutral siliceous polishing agent having a stirred slurry pH (as herein defined) in the range from 5 to less than 6.5, and a stabilizing amount of monofluorophosphate ion, the dentifrice having a stirred slurry pH in the range from 5.5 to 8.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: June 19, 1984
    Assignee: Colgate-Palmolive Company
    Inventors: Kenneth Harvey, Stephen T. Connors
  • Patent number: 4437584
    Abstract: A toothpaste dispenser comprising a container having a neck through which a tube connected to a plunger extends. A uni-directional movable plate is disposed in the container and a ratchet assembly extends through the plate for moving the plate to extrude product through the tube. A spring returns the plunger to its initial position.
    Type: Grant
    Filed: August 28, 1981
    Date of Patent: March 20, 1984
    Assignee: Colgate-Palmolive Company
    Inventors: Stephen T. Connors, Harvey, Kenneth