Patents by Inventor Xavier Hugon

Xavier Hugon 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: 20240120296
    Abstract: A method for protecting optoelectronic devices against electrostatic discharges. Each optoelectronic device includes an electronic circuit including at least one electronic component and one optoelectronic circuit bonded to the electronic circuit and including at last one optoelectronic component from among a light-emitting diode or a photodiode. The method includes forming of first and second wafers, one of the first or second wafer includes a plurality of copies of the electronic circuit and the other one of the first or second wafer including a plurality of copies of the optoelectronic circuit, the bonding of the first wafer to a support, the bonding of the second wafer to the first wafer, and the separation of the electronic devices from one another, wherein the first wafer and/or the second wafer comprises at least one system for protecting optoelectronic devices against electrostatic discharges.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 11, 2024
    Applicant: Aledia
    Inventors: Xavier Hugon, Frédéric Mayer, Frédéric Mercier, lvan-Christophe Robin
  • Publication number: 20230307486
    Abstract: A method for manufacturing an optoelectronic device includes providing a support supporting a plurality of three-dimensional semiconductor structures, forming a sacrificial portion under a first set of 3D structures of the plurality of three-dimensional semiconductor structures, forming a barrier portion around the sacrificial portion, said barrier portion having a basal wall extending under the sacrificial portion, and a lateral wall extending at the edge of the sacrificial portion, forming an access trench up to the sacrificial portion, the access trench extending continuously along the lateral wall of the barrier portion, etching the sacrificial portion from the access trench, and removing the first set of 3D structures.
    Type: Application
    Filed: August 10, 2021
    Publication date: September 28, 2023
    Inventors: Xavier HUGON, Eric POURQUIER, Frédéric MAYER, Thomas LACAVE, Philippe GIBERT, Mickae?l REBAUD, Emmanuel PETITPREZ
  • Patent number: 11552126
    Abstract: An optoelectronic device having a substrate and a plurality of sets of light-emitting diodes where each set includes a plurality of light-emitting diodes, a first lower electrode, a second upper electrode, an electronic component of an electronic circuit formed in a first portion of the substrate, on the side of the face of the substrate that does not bear the light-emitting diodes, and a first conductive means formed through the first portion and electrically connecting a first terminal of the electronic component to one amongst the first and second electrodes. The first conductive means of a given set is electrically-insulated from the first conductive means of the other sets.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: January 10, 2023
    Assignee: ALEDIA
    Inventors: Ivan-Christophe Robin, Matthieu Charbonnier, Xavier Hugon, Erwan Dornel
  • Publication number: 20220406628
    Abstract: A method of protecting optoelectronic devices against electrostatic discharges, each optoelectronic device comprising an optoelectronic circuit comprising at least one optoelectronic component from among a light-emitting diode or a photodiode.
    Type: Application
    Filed: October 12, 2020
    Publication date: December 22, 2022
    Applicant: Aledia
    Inventors: Frédéric Mayer, Frédéric Mercier, Ivan-Christophe Robin, Xavier Hugon
  • Patent number: 11522111
    Abstract: An optoelectronic device, including: a support; at least one first electrically-conductive layer covering the support; display pixel circuits including first and second opposite surfaces bonded to the first electrically-conductive layer, each display pixel circuit including an electronic circuit including the first surface and a third surface opposite to the first surface, the first surface being bonded to the first electrically-conductive layer, and at least one optoelectronic circuit bonded to the third surface and including at least one light-emitting diode, at least one of the electrodes of the light-emitting diode being connected to the electronic circuit by the third surface; at least one second electrically-conductive layer covering the display pixel circuits and electrically coupled to the electronic circuits of the display pixel circuits on the side of the second surface.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: December 6, 2022
    Assignee: Aledia
    Inventors: Xavier Hugon, Philippe Gilet, Ivan-Christophe Robin, Zine Bouhamri, Frédéric Mercier, Matthieu Charbonnier
  • Patent number: 11398579
    Abstract: A method for producing optoelectronic devices, including the following successive steps: providing a substrate having a first face; on the first face, forming sets of light-emitting diodes including wire-like, conical or frustoconical semiconductor elements; covering all of the first face with a layer encapsulating the light-emitting diodes; forming a conductive element that is insulated from the substrate and extends through the substrate from the second face to at least the first face; reducing the thickness of the substrate; and cutting the resulting structure in order to separate each set of light-emitting diodes.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 26, 2022
    Assignees: Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Aledia
    Inventors: Christophe Bouvier, Emilie Pougeoise, Xavier Hugon, Carlo Cagli, Tiphaine Dupont, Philippe Gibert, Nacer Aitmani, Vincent Beix, Thomas Lacave, Marion Volpert, Olivier Girard, Denis Renaud, Brigitte Soulier
  • Publication number: 20220059743
    Abstract: An optoelectronic device including an integrated circuit including light-emitting diodes, thin film transistors, and a stack of electrically-insulating layers, said stack being located between the light-emitting diodes and the transistors, said stack further including conductive elements, between and through said insulating layers, said conductive elements connecting at least some of the transistors to the light-emitting diodes.
    Type: Application
    Filed: December 19, 2019
    Publication date: February 24, 2022
    Applicant: Aledia
    Inventors: Frédéric Mayer, Frédéric Mercier, Ivan-Christophe Robin, Xavier Hugon
  • Publication number: 20210399166
    Abstract: A light-emitting diode 100 includes a first region 1, for example of the P type, formed in a first layer 10 and forming, in a direction normal to a basal plane, a stack with a second region 2 having at least one quantum well formed in a second layer 20, and including a third region 3, for example of the N type, extending in the direction normal to the plane, bordering and in contact with the first and second regions 1, 2, through the first and second layers 10, 20. A process for producing a light-emitting diode 100 in which the third region 3 is formed by implantation into and through the first and second layers 10, 20.
    Type: Application
    Filed: November 20, 2019
    Publication date: December 23, 2021
    Inventors: Ivan-Christophe ROBIN, Xavier HUGON, Philippe GILET, Tiphaine DUPONT
  • Publication number: 20210366979
    Abstract: An optoelectronic device having a substrate and a plurality of sets of light-emitting diodes where each set includes a plurality of light-emitting diodes, a first lower electrode, a second upper electrode, an electronic component of an electronic circuit formed in a first portion of the substrate, on the side of the face of the substrate that does not bear the light-emitting diodes, and a first conductive means formed through the first portion and electrically connecting a first terminal of the electronic component to one amongst the first and second electrodes. The first conductive means of a given set is electrically-insulated from the first conductive means of the other sets.
    Type: Application
    Filed: February 1, 2019
    Publication date: November 25, 2021
    Inventors: Ivan-Christophe ROBIN, Matthieu CHARBONNIER, Xavier HUGON, Erwan DORNEL
  • Patent number: 11164506
    Abstract: A method of controlling an optoelectronic device including display pixels arranged in rows and in columns. The optoelectronic device further includes first electrodes, each connected to the display pixels of at least one row, second electrodes, each connected to the display pixels of at least one column, and a circuit for controlling the first and second electrodes. The method includes, in a first phase, the activation of the display pixels connected to one of the first electrodes and to one of the second electrodes by the following steps, simultaneously carried out: taking one of the first electrodes to a first potential, the other first electrodes being maintained at a second potential smaller than the first potential; and taking one of the second electrodes to a third potential smaller than the second potential, the other second electrodes being maintained at a fourth potential greater than the third potential and smaller than the second potential.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: November 2, 2021
    Assignee: Aledia
    Inventors: Xavier Hugon, Philippe Gilet, Ivan-Christophe Robin, Zine Bouhamri, Frédéric Mercier, Matthieu Charbonnier
  • Patent number: 10937777
    Abstract: An optoelectronic device including a semiconductor substrate that is optionally doped with a first type of conductivity; a first semiconductor region that is electrically connected to the substrate, doped with the first type of conductivity or a second opposite type of conductivity and more strongly doped than the substrate; a first set of first light-emitting diodes resting on the first semiconductor region, the first light-emitting diodes comprising wire-like, conical or frustoconical semiconductor elements; and a conductive portion in contact with the first semiconductor region.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: March 2, 2021
    Assignee: Aledia
    Inventors: Christophe Bouvier, Erwan Dornel, Xavier Hugon, Carlo Cagli
  • Patent number: 10923530
    Abstract: An optoelectronic device including a substrate with first and second opposite surfaces; and electrical insulation side elements extending from the first surface to the second surface and defining, within the substrate, first semi-conductive or conductive portions which are electrically insulated from each other. The optoelectronic device also includes, for each first portion a first conductive contact pad on the second surface in contact with the first portion and a set of light-emitting diodes resting on the first surface and electrically connected to the first portion. The optoelectronic device also includes a conductive, at least partially transparent electrode layer covering all the light-emitting diodes; an insulating, at least partially transparent encapsulation layer covering the electrode layer; and at least one second conductive contact pad electrically connected to the electrode layer.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: February 16, 2021
    Assignee: Aledia
    Inventors: Xavier Hugon, Ivan-Christophe Robin
  • Patent number: 10923528
    Abstract: An optoelectronic device including a substrate including first and second opposite surfaces and lateral electrical insulation elements extending in the substrate and delimiting first electrically-insulated semiconductor or conductive portions. The optoelectronic device includes, for each first portion, an assembly of light-emitting diodes electrically coupled to the first portion. The optoelectronic device includes an electrode layer covering all the light-emitting diodes, a protection layer covering the electrode layer, and walls extending in the protection layer and delimiting second portions surrounding or opposite the assemblies of light-emitting diodes. The walls contain at least one material from the group including air, a metal, a semiconductor material, a metal alloy, a partially transparent material, and a core made of an at least partially transparent material covered with an opaque or reflective layer.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: February 16, 2021
    Assignee: Aledia
    Inventors: Tiphaine Dupont, Sylvia Scaringella, Erwan Dornel, Philippe Gibert, Philippe Gilet, Xavier Hugon, Fabienne Goutaudier
  • Publication number: 20200161520
    Abstract: An optoelectronic device, including: a support; at least one first electrically-conductive layer covering the support; display pixel circuits including first and second opposite surfaces bonded to the first electrically-conductive layer, each display pixel circuit including an electronic circuit including the first surface and a third surface opposite to the first surface, the first surface being bonded to the first electrically-conductive layer, and at least one optoelectronic circuit bonded to the third surface and including at least one light-emitting diode, at least one of the electrodes of the light-emitting diode being connected to the electronic circuit by the third surface; at least one second electrically-conductive layer covering the display pixel circuits and electrically coupled to the electronic circuits of the display pixel circuits on the side of the second surface.
    Type: Application
    Filed: July 19, 2018
    Publication date: May 21, 2020
    Applicant: Aledia
    Inventors: Xavier Hugon, Philippe Gilet, Ivan-Christophe Robin, Zine Bouhamri, Frédéric Mercier, Matthieu Charbonnier
  • Publication number: 20200152113
    Abstract: A method of controlling an optoelectronic device including display pixels arranged in rows and in columns. The optoelectronic device further includes first electrodes, each connected to the display pixels of at least one row, second electrodes, each connected to the display pixels of at least one column, and a circuit for controlling the first and second electrodes. The method includes, in a first phase, the activation of the display pixels connected to one of the first electrodes and to one of the second electrodes by the following steps, simultaneously carried out: taking one of the first electrodes to a first potential, the other first electrodes being maintained at a second potential smaller than the first potential; and taking one of the second electrodes to a third potential smaller than the second potential, the other second electrodes being maintained at a fourth potential greater than the third potential and smaller than the second potential.
    Type: Application
    Filed: July 19, 2018
    Publication date: May 14, 2020
    Applicant: Aledia
    Inventors: Xavier Hugon, Philippe Gilet, Ivan-Christophe Robin, Zine Bouhamri, Frédéric Mercier, Matthieu Charbonnier
  • Publication number: 20200111833
    Abstract: An optoelectronic device including a substrate with first and second opposite surfaces; and electrical insulation side elements extending from the first surface to the second surface and defining, within the substrate, first semi-conductive or conductive portions which are electrically insulated from each other. The optoelectronic device also includes, for each first portion a first conductive contact pad on the second surface in contact with the first portion and a set of light-emitting diodes resting on the first surface and electrically connected to the first portion. The optoelectronic device also includes a conductive, at least partially transparent electrode layer covering all the light-emitting diodes; an insulating, at least partially transparent encapsulation layer covering the electrode layer; and at least one second conductive contact pad electrically connected to the electrode layer.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Applicant: Aledia
    Inventors: Xavier Hugon, Ivan-Christophe Robin
  • Patent number: 10535709
    Abstract: An optoelectronic device including a substrate with first and second opposite surfaces; and electrical insulation side elements extending from the first surface to the second surface and defining, within the substrate, first semi-conductive or conductive portions which are electrically insulated from each other. The optoelectronic device also includes, for each first portion a first conductive contact pad on the second surface in contact with the first portion and a set of light-emitting diodes resting on the first surface and electrically connected to the first portion. The optoelectronic device also includes a conductive, at least partially transparent electrode layer covering all the light-emitting diodes; an insulating, at least partially transparent encapsulation layer covering the electrode layer; and at least one second conductive contact pad electrically connected to the electrode layer.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: January 14, 2020
    Assignee: Aledia
    Inventors: Xavier Hugon, Ivan-Christophe Robin
  • Publication number: 20190326270
    Abstract: An optoelectronic device including a semiconductor substrate that is optionally doped with a first type of conductivity; a first semiconductor region that is electrically connected to the substrate, doped with the first type of conductivity or a second opposite type of conductivity and more strongly doped than the substrate; a first set of first light-emitting diodes resting on the first semiconductor region, the first light-emitting diodes comprising wire-like, conical or frustoconical semiconductor elements; and a conductive portion in contact with the first semiconductor region.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Applicant: Aledia
    Inventors: Christophe Bouvier, Erwan Dornel, Xavier Hugon, Carlo Cagli
  • Patent number: 10453991
    Abstract: A light-emitting device comprises a set of nanowires over the whole surface of a substrate, comprising at least a first series of first nanowires and a second series of second nanowires; the first series comprising first nanowires emitting light under electrical control, connected between a first and a second type of electrical contact to emit light under electrical control, the first nanowires covered by at least one conducting layer transparent at the wavelength of the light-emitting device, layer in contact with the first type of electrical contact; the second series comprising second nanowires, encapsulated in a layer of metal allowing the first electrical contact to be formed; the second electrical contact being on the back face of the substrate, opposite to the face comprising the nanowires, and provided by a conducting layer facing the first series of nanowires. A method of fabrication of the light-emitting device is provided.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: October 22, 2019
    Assignee: ALEDIA
    Inventors: Sylvia Scaringella, Philippe Gilet, Xavier Hugon, Philippe Gibert
  • Patent number: 10440788
    Abstract: An optoelectronic circuit including separate interconnected basic electronic circuits, each of which includes at least one light emitting diode and at least one integrated circuit chip that has a circuit for controlling the light emitting diode, the circuit being suitable for activating or deactivating the light emitting diode.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: October 8, 2019
    Assignee: Aledia
    Inventors: Frédéric Mercier, Xavier Hugon, Philippe Gilet