Patents by Inventor Pascal FONTENEAU

Pascal FONTENEAU 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).

  • Patent number: 12199131
    Abstract: Image sensors and methods of manufacturing image sensors are provided. One such method includes forming a structure that includes a semiconductor layer extending from a front side to a back side, and a capacitive insulation wall extending through the semiconductor layer. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductor or a semiconductor material. Portions of the semiconductor layer and the region of the conductor or semiconductor material are selectively etched, and the first and second insulating walls have portions protruding outwardly beyond a back side of the semiconductor layer and of the region of the conductor or semiconductor material. A dielectric passivation layer is deposited on the back side of the structure, and portions of the dielectric passivation layer are locally removed on a back side of the protruding portions of the first and second insulating walls.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: January 14, 2025
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Laurent Gay, Frederic Lalanne, Yann Henrion, Francois Guyader, Pascal Fonteneau, Aurelien Seignard
  • Publication number: 20240170586
    Abstract: The present disclosure concerns a photodiode including at least one memory area, each memory area including at least two charge storage regions.
    Type: Application
    Filed: January 29, 2024
    Publication date: May 23, 2024
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Arnaud TOURNIER, Boris RODRIGUES GONCALVES, Frederic LALANNE, Pascal FONTENEAU
  • Publication number: 20230317744
    Abstract: A photodiode is formed in a semiconductor substrate having a first surface and a second surface. The semiconductor substrate includes a first N-type semiconductor region formed by epitaxial growth and a second N-type semiconductor region (that is more heavily doped than the first region) extending into the first N-type semiconductor region from the first surface. The dopant concentration of the first N-type semiconductor region gradually increases between the second surface and the first surface of the semiconductor substrate. An implanted heavily P-type doped region is formed in the second N-type semiconductor region at the first surface.
    Type: Application
    Filed: March 28, 2023
    Publication date: October 5, 2023
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Boris RODRIGUES GONCALVES, Pascal FONTENEAU
  • Patent number: 11610933
    Abstract: Image sensors and methods of manufacturing image sensors are provided herein. In an embodiment, a method of manufacturing an image sensor includes forming a structure having a front side and a back side. The structure includes a semiconductor layer extending between the front side and the back side of the structure, and a capacitive insulation wall extending through the semiconductor layer between the front side and the back side of the structure. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductive or semiconductor material. The method further includes selectively etching, from the back side of the structure, portions of the semiconductor layer and the region of conductive or semiconductor material, while retaining adjacent portions of the first and second insulating walls.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: March 21, 2023
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Frederic Lalanne, Laurent Gay, Pascal Fonteneau, Yann Henrion, Francois Guyader
  • Publication number: 20220336520
    Abstract: Image sensors and methods of manufacturing image sensors are provided. One such method includes forming a structure that includes a semiconductor layer extending from a front side to a back side, and a capacitive insulation wall extending through the semiconductor layer. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductor or a semiconductor material. Portions of the semiconductor layer and the region of the conductor or semiconductor material are selectively etched, and the first and second insulating walls have portions protruding outwardly beyond a back side of the semiconductor layer and of the region of the conductor or semiconductor material. A dielectric passivation layer is deposited on the back side of the structure, and portions of the dielectric passivation layer are locally removed on a back side of the protruding portions of the first and second insulating walls.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Laurent GAY, Frederic LALANNE, Yann HENRION, Francois GUYADER, Pascal FONTENEAU, Aurelien SEIGNARD
  • Patent number: 11398521
    Abstract: Image sensors and methods of manufacturing image sensors are provided. One such method includes forming a structure that includes a semiconductor layer extending from a front side to a back side, and a capacitive insulation wall extending through the semiconductor layer. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductor or a semiconductor material. Portions of the semiconductor layer and the region of the conductor or semiconductor material are selectively etched, and the first and second insulating walls have portions protruding outwardly beyond a back side of the semiconductor layer and of the region of the conductor or semiconductor material. A dielectric passivation layer is deposited on the back side of the structure, and portions of the dielectric passivation layer are locally removed on a back side of the protruding portions of the first and second insulating walls.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: July 26, 2022
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Laurent Gay, Frederic Lalanne, Yann Henrion, Francois Guyader, Pascal Fonteneau, Aurelien Seignard
  • Publication number: 20210288102
    Abstract: Image sensors and methods of manufacturing image sensors are provided herein. In an embodiment, a method of manufacturing an image sensor includes forming a structure having a front side and a back side. The structure includes a semiconductor layer extending between the front side and the back side of the structure, and a capacitive insulation wall extending through the semiconductor layer between the front side and the back side of the structure. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductive or semiconductor material. The method further includes selectively etching, from the back side of the structure, portions of the semiconductor layer and the region of conductive or semiconductor material, while retaining adjacent portions of the first and second insulating walls.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 16, 2021
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Frederic LALANNE, Laurent GAY, Pascal FONTENEAU, Yann HENRION, Francois GUYADER
  • Publication number: 20210193849
    Abstract: The present disclosure concerns a photodiode including at least one memory area, each memory area including at least two charge storage regions.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventors: Arnaud TOURNIER, Boris RODRIGUES GONCALVES, Frederic LALANNE, Pascal FONTENEAU
  • Patent number: 11031433
    Abstract: Image sensors and methods of manufacturing image sensors are provided herein. In an embodiment, a method of manufacturing an image sensor includes forming a structure having a front side and a back side. The structure includes a semiconductor layer extending between the front side and the back side of the structure, and a capacitive insulation wall extending through the semiconductor layer between the front side and the back side of the structure. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductive or semiconductor material. The method further includes selectively etching, from the back side of the structure, portions of the semiconductor layer and the region of conductive or semiconductor material, while retaining adjacent portions of the first and second insulating walls.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: June 8, 2021
    Assignee: STMicroelectronics (Crolles) SAS
    Inventors: Frederic Lalanne, Laurent Gay, Pascal Fonteneau, Yann Henrion, Francois Guyader
  • Patent number: 10978487
    Abstract: An inverter includes a semiconductor substrate. A Z2-FET switch is disposed at a first surface of the semiconductor substrate and a further switch is disposed at the first surface of the semiconductor substrate. The further switch and the Z2-FET switch have current paths coupled between a first reference terminal and a second reference terminal.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: April 13, 2021
    Assignees: STMICROELECTRONICS (CROLLES 2) SAS, STMICROELECTRONICS SA
    Inventors: Hassan El Dirani, Pascal Fonteneau
  • Publication number: 20200227451
    Abstract: Image sensors and methods of manufacturing image sensors are provided. One such method includes forming a structure that includes a semiconductor layer extending from a front side to a back side, and a capacitive insulation wall extending through the semiconductor layer. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductor or a semiconductor material. Portions of the semiconductor layer and the region of the conductor or semiconductor material are selectively etched, and the first and second insulating walls have portions protruding outwardly beyond a back side of the semiconductor layer and of the region of the conductor or semiconductor material. A dielectric passivation layer is deposited on the back side of the structure, and portions of the dielectric passivation layer are locally removed on a back side of the protruding portions of the first and second insulating walls.
    Type: Application
    Filed: January 10, 2020
    Publication date: July 16, 2020
    Inventors: Laurent GAY, Frederic LALANNE, Yann HENRION, Francois GUYADER, Pascal FONTENEAU, Aurelien SEIGNARD
  • Publication number: 20190341478
    Abstract: A Z2-FET-type structure includes a first front gate, a second front gate, a first back gate doped with p-type dopants, and a second back gate doped with n-type dopants. The structure may also include a buried insulating layer between the front gates and the back gates, an anode region, a cathode region, and an intermediate region separating the anode region and the cathode region.
    Type: Application
    Filed: April 30, 2019
    Publication date: November 7, 2019
    Inventors: Hassan El Dirani, Pascal Fonteneau
  • Publication number: 20190288005
    Abstract: An inverter includes a semiconductor substrate. A Z2-FET switch is disposed at a first surface of the semiconductor substrate and a further switch is disposed at the first surface of the semiconductor substrate. The further switch and the Z2-FET switch have current paths coupled between a first reference terminal and a second reference terminal.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 19, 2019
    Inventors: Hassan El Dirani, Pascal Fonteneau
  • Publication number: 20190252457
    Abstract: Image sensors and methods of manufacturing image sensors are provided herein. In an embodiment, a method of manufacturing an image sensor includes forming a structure having a front side and a back side. The structure includes a semiconductor layer extending between the front side and the back side of the structure, and a capacitive insulation wall extending through the semiconductor layer between the front side and the back side of the structure. The capacitive insulation wall includes first and second insulating walls separated by a region of a conductive or semiconductor material. The method further includes selectively etching, from the back side of the structure, portions of the semiconductor layer and the region of conductive or semiconductor material, while retaining adjacent portions of the first and second insulating walls.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 15, 2019
    Inventors: Frederic LALANNE, Laurent GAY, Pascal FONTENEAU, Yann HENRION, Francois GUYADER
  • Patent number: 10312240
    Abstract: A microelectronic component is capable of being used as a memory cell. The component includes a semiconductor layer resting on an insulating layer and including a doped source region of a first conductivity type, a doped drain region of a second conductivity type, and an intermediate region, non-doped or more lightly doped, with the second conductivity type, than the drain region, the intermediate region including first and second portions respectively extending from the drain region and from the source region. An insulated front gate electrode rests on the first portion. A first back gate electrode and a second back gate electrode are arranged under the insulating layer, respectively opposite the first portion and the second portion.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: June 4, 2019
    Assignee: STMICROELECTRONICS SA
    Inventors: Hassan El Dirani, Yohann Solaro, Pascal Fonteneau
  • Patent number: 10062681
    Abstract: A protection device for protecting an IC against electrostatic discharge includes a buried insulant layer having a thickness that is no greater than fifty nanometers with bipolar transistors arranged thereon, one of which is NPN and the other of which is PNP. A base of one merges with a collector of the other. The transistors selectively conduct a discharge current between electrodes. A first semiconductor ground plane under the buried insulant layer is capable of being electrically biased and extends underneath the base of the first bipolar transistor. The ground plane and a base of one transistor have the same doping. However, its dopant density is at least tenfold greater than that of the base.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: August 28, 2018
    Assignees: Commissariat à l'énergie atomique et aux énergies alternatives, STMicroelectronics SA, Centre National de la Recherche Scientifique
    Inventors: Yohann Solaro, Sorin Cristoloveanu, Claire Fenouillet-Beranger, Pascal Fonteneau
  • Publication number: 20180138181
    Abstract: A microelectronic component is capable of being used as a memory cell. The component includes a semiconductor layer resting on an insulating layer and including a doped source region of a first conductivity type, a doped drain region of a second conductivity type, and an intermediate region, non-doped or more lightly doped, with the second conductivity type, than the drain region, the intermediate region including first and second portions respectively extending from the drain region and from the source region. An insulated front gate electrode rests on the first portion. A first back gate electrode and a second back gate electrode are arranged under the insulating layer, respectively opposite the first portion and the second portion.
    Type: Application
    Filed: January 11, 2018
    Publication date: May 17, 2018
    Inventors: Hassan El Dirani, Yohann Solaro, Pascal Fonteneau
  • Publication number: 20180061838
    Abstract: A microelectronic component is capable of being used as a memory cell. The component includes a semiconductor layer resting on an insulating layer and including a doped source region of a first conductivity type, a doped drain region of a second conductivity type, and an intermediate region, non-doped or more lightly doped, with the second conductivity type, than the drain region, the intermediate region including first and second portions respectively extending from the drain region and from the source region. An insulated front gate electrode rests on the first portion. A first back gate electrode and a second back gate electrode are arranged under the insulating layer, respectively opposite the first portion and the second portion.
    Type: Application
    Filed: March 21, 2017
    Publication date: March 1, 2018
    Inventors: Hassan El Dirani, Yohann Solaro, Pascal Fonteneau
  • Patent number: 9905565
    Abstract: A microelectronic component is capable of being used as a memory cell. The component includes a semiconductor layer resting on an insulating layer and including a doped source region of a first conductivity type, a doped drain region of a second conductivity type, and an intermediate region, non-doped or more lightly doped, with the second conductivity type, than the drain region, the intermediate region including first and second portions respectively extending from the drain region and from the source region. An insulated front gate electrode rests on the first portion. A first back gate electrode and a second back gate electrode are arranged under the insulating layer, respectively opposite the first portion and the second portion.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: February 27, 2018
    Assignee: STMicroelectronics SA
    Inventors: Hassan El Dirani, Yohann Solaro, Pascal Fonteneau
  • Publication number: 20170256531
    Abstract: A protection device for protecting an IC against electrostatic discharge includes a buried insulant layer having a thickness that is no greater than fifty nanometers with bipolar transistors arranged thereon, one of which is NPN and the other of which is PNP. A base of one merges with a collector of the other. The transistors selectively conduct a discharge current between electrodes. A first semiconductor ground plane under the buried insulant layer is capable of being electrically biased and extends underneath the base of the first bipolar transistor. The ground plane and a base of one transistor have the same doping. However, its dopant density is at least tenfold greater than that of the base.
    Type: Application
    Filed: May 10, 2017
    Publication date: September 7, 2017
    Inventors: Yohann Solaro, Sorin Cristoloveanu, Claire Fenouillet-Beranger, Pascal Fonteneau