Patents by Inventor Ludovic Dupre

Ludovic Dupre 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: 20240113054
    Abstract: An electronic chip including a substrate and, on the side of one face of the substrate, a metal pad intended to receive a soldering material, the pad including, in order from said face of the substrate, a first metal layer, an electrically conductive barrier layer, and a second metal layer, wherein an electrically insulating barrier layer is arranged on, and in contact with, the sidewall of the first metal layer over the entire periphery of the metal pad.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Applicant: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Clément Lobre, Eva Serres, Ludovic Dupre
  • Patent number: 11581464
    Abstract: Photo-emitting and/or photo-receiving diode array device, comprising: a stack of first and second semiconductor layers doped according to different types; first trenches passing through the stack and surrounding a region of the stack wherein several diodes are formed; dielectric portions arranged in the first trenches and covering lateral flanks of said region over the entire thickness of the second layer and a first part of the thickness of the first layer; first electrically conductive portions arranged in the first trenches and covering the lateral flanks of said region over a second part of the thickness of the first layer, and forming first electrodes of the diodes of said region; at least one second trench partially passing through the first layer and separating the portions of the first layer from the diodes of said region.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: February 14, 2023
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Adrien Gasse, Ludovic Dupre, Marianne Consonni
  • Publication number: 20220406968
    Abstract: A method for manufacturing a native emission matrix, comprising the following steps: a) providing a base structure comprising a substrate, a layer of GaN, a layer of doped In(x)GaN and an epitaxial regrowth layer of nid In(x)GaN, b) structuring first and second mesas in the base structure, the first mesa comprising a part of the layer of GaN, the layer of doped In(x)GaN and the epitaxial regrowth layer of not-intentionally doped In(x)GaN, the second mesa comprising a part of the layer of doped In(x)GaN and the epitaxial regrowth layer of not-intentionally doped In(x)GaN, c) electrochemically porosifying the second mesa, d) producing stacks on the mesas to form LED structures emitting at various wavelengths.
    Type: Application
    Filed: June 10, 2022
    Publication date: December 22, 2022
    Inventors: Ludovic Dupre, Carole Pernel, Amélie Dussaigne, Patrick Le Maitre
  • Publication number: 20210313499
    Abstract: Photo-emitting and/or photo-receiving diode array device, comprising: a stack of first and second semiconductor layers doped according to different types; first trenches passing through the stack and surrounding a region of the stack wherein several diodes are formed; dielectric portions arranged in the first trenches and covering lateral flanks of said region over the entire thickness of the second layer and a first part of the thickness of the first layer; first electrically conductive portions arranged in the first trenches and covering the lateral flanks of said region over a second part of the thickness of the first layer, and forming first electrodes of the diodes of said region; at least one second trench partially passing through the first layer and separating the portions of the first layer from the diodes of said region.
    Type: Application
    Filed: April 2, 2021
    Publication date: October 7, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Adrien GASSE, Ludovic DUPRE, Marianne CONSONNI
  • Patent number: 11094742
    Abstract: A method for producing a photo-emitting and/or photo-receiving device with a metal optical separation grid, comprising at least: producing at least one photo-emitting and/or photo-receiving component, wherein at least one first metal electrode of the photo-emitting and/or photo-receiving component covers side flanks of at least one semiconductor stack of the photo-emitting and/or photo-receiving component and extends to at least one emitting and/or receiving face of the photo-emitting and/or photo-receiving component; treating at least one face of the first metal electrode located at the emitting and/or receiving face, rendering wettable said face of the first metal electrode; producing of the metal optical separation grid on at least one support; fastening of the metal optical separation grid against said face of the first metal electrode by brazing; removing the support.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: August 17, 2021
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Adrien Gasse, Ludovic Dupre, Marion Volpert
  • Publication number: 20210126157
    Abstract: Method for producing a photoemitting or photoreceiving diode, including: producing, on a first substrate, first and second semiconductor layers with opposite dopings, and a third intrinsic semiconductor layer; etching trenches surrounding remaining portions of the second and third layers and of a first part of the first layer; producing, in the trenches, a dielectric spacer covering side walls of said remaining portions; etching extending the trenches as far as the first substrate; laterally etching a part of the dielectric spacer, exposing contact surfaces of the second part of the first layer; producing, in the trenches, a first electrode in contact with the contact surfaces of the second part of the first layer and with lateral flanks of the second part of the first layer.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 29, 2021
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Ludovic DUPRE, Hélène FOURNIER, Franck HENRY
  • Publication number: 20200343296
    Abstract: A method for producing a photo-emitting and/or photo-receiving device with a metal optical separation grid, comprising at least: producing at least one photo-emitting and/or photo-receiving component, wherein at least one first metal electrode of the photo-emitting and/or photo-receiving component covers side flanks of at least one semiconductor stack of the photo-emitting and/or photo-receiving component and extends to at least one emitting and/or receiving face of the photo-emitting and/or photo-receiving component; treating at least one face of the first metal electrode located at the emitting and/or receiving face, rendering wettable said face of the first metal electrode; producing of the metal optical separation grid on at least one support; fastening of the metal optical separation grid against said face of the first metal electrode by brazing; removing the support.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 29, 2020
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Adrien GASSE, Ludovic DUPRE, Marion VOLPERT
  • Patent number: 7669072
    Abstract: A system comprises a central processing unit and a set of peripheral units accessible by the CPU and being able to be driven by the same clock source. At least one programmable delay line is located in the clock branch of one of the peripheral units and has a delay selection input that is accessible by software running on the system.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: February 23, 2010
    Assignee: Atmel Corporation
    Inventors: Alain Vergnes, Ludovic Dupre, David Dumas
  • Publication number: 20080183924
    Abstract: A system comprises a central processing unit and a set of peripheral units accessible by the CPU and being able to be driven by the same clock source. At least one programmable delay line is located in the clock branch of one of the peripheral units and has a delay selection input that is accessible by software running on the system.
    Type: Application
    Filed: January 30, 2007
    Publication date: July 31, 2008
    Applicant: ATMEL CORPORATION
    Inventors: Alain Vergnes, Ludovic Dupre, David Dumas