Patents by Inventor Julien Delalleau

Julien Delalleau 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: 11943931
    Abstract: In one embodiment, a non-volatile memory device includes a vertical state transistor disposed in a semiconductor substrate, where the vertical state transistor is configured to trap charges in a dielectric interface between a semiconductor well and a control gate. A vertical selection transistor is disposed in the semiconductor substrate. The vertical selection transistor is disposed under the state transistor, and configured to select the state transistor.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: March 26, 2024
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Quentin Hubert, Abderrezak Marzaki, Julien Delalleau
  • Publication number: 20240063280
    Abstract: A MOSFET transistor includes, on a semiconductor layer, a stack of a gate insulator and of a gate region on the gate insulator. The gate region has a first gate portion and a second gate portion between the first gate portion and the gate insulator. The first gate portion has a first length in a first lateral direction of the transistor. The second gate portion has a second length in the first lateral direction that is shorter than the first length.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 22, 2024
    Applicants: STMicroelectronics (Rousset) SAS, STMicroelectronics (Crolles 2) SAS
    Inventors: Franck JULIEN, Julien DELALLEAU, Julien DURA, Julien AMOUROUX, Stephane MONFRAY
  • Publication number: 20230327028
    Abstract: A semiconductor substrate includes excavations which form trenches sunk. A capacitive element includes: a first dielectric envelope conforming to sides and bottoms of the trenches; a first semiconductor layer conforming to a surface of the first dielectric envelope in the trenches; a second dielectric envelope conforming to a surface of the first semiconductor layer in the trenches; and a second semiconductor layer conforming to a surface of the second dielectric envelope in the trenches.
    Type: Application
    Filed: June 15, 2023
    Publication date: October 12, 2023
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Christian RIVERO, Brice ARRAZAT, Julien DELALLEAU, Joel METZ
  • Patent number: 11721773
    Abstract: A semiconductor substrate includes excavations which form trenches sunk. A capacitive element includes: a first dielectric envelope conforming to sides and bottoms of the trenches; a first semiconductor layer conforming to a surface of the first dielectric envelope in the trenches; a second dielectric envelope conforming to a surface of the first semiconductor layer in the trenches; and a second semiconductor layer conforming to a surface of the second dielectric envelope in the trenches.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: August 8, 2023
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Christian Rivero, Brice Arrazat, Julien Delalleau, Joel Metz
  • Patent number: 11581270
    Abstract: An integrated circuit includes a substrate, an interconnection part, and an isolating region located between the substrate and the interconnection part. A decoy structure is located within the isolating region and includes a silicided sector which is electrically isolated from the substrate.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: February 14, 2023
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Julien Delalleau, Christian Rivero
  • Patent number: 11424342
    Abstract: In fabricating metal-oxide-semiconductor field-effect transistors (MOSFETs), the implanting of lightly doped drain regions is performed before forming gate regions with a physical gate length that is associated with a reference channel length. The step of implanting lightly doped drain regions includes forming an implantation mask defining the lightly doped drain regions and an effective channel length of each MOSFET. The forming of the implantation mask is configured to define an effective channel length of at least one MOSFET that is different from the respective reference channel length.
    Type: Grant
    Filed: July 27, 2020
    Date of Patent: August 23, 2022
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Julien Delalleau, Franck Julien
  • Patent number: 11387194
    Abstract: A semiconductor substrate has a front face and a back face. A first contact and a second contact, spaced apart from each other, are located on the front face. An electrically conductive wafer is located on the back face. A detection circuit is configured to detect a thinning of the substrate from the back face. The detection circuit including a measurement circuit that takes a measurement of a resistive value of the substrate between said at least one first contact, said at least one second contact and said electrically conductive wafer. Thinning is detected in response to the measured resistive value.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: July 12, 2022
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Alexandre Sarafianos, Fabrice Marinet, Julien Delalleau
  • Patent number: 11270886
    Abstract: A MOS transistor is produced on and in an active zone and included a source region and a drain region. The active zone has a width measured transversely to a source-drain direction. A conductive gate region of the MOS transistor includes a central zone and, at a foot of the central zone, at least one stair that extends beyond the central zone along at least an entirety of the width of the active zone.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: March 8, 2022
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Julien Delalleau, Christian Rivero
  • Publication number: 20220005960
    Abstract: A semiconductor substrate includes excavations which form trenches sunk. A capacitive element includes: a first dielectric envelope conforming to sides and bottoms of the trenches; a first semiconductor layer conforming to a surface of the first dielectric envelope in the trenches; a second dielectric envelope conforming to a surface of the first semiconductor layer in the trenches; and a second semiconductor layer conforming to a surface of the second dielectric envelope in the trenches.
    Type: Application
    Filed: July 2, 2021
    Publication date: January 6, 2022
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Christian RIVERO, Brice ARRAZAT, Julien DELALLEAU, Joel METZ
  • Publication number: 20210225853
    Abstract: In one embodiment, a non-volatile memory device includes a vertical state transistor disposed in a semiconductor substrate, where the vertical state transistor is configured to trap charges in a dielectric interface between a semiconductor well and a control gate. A vertical selection transistor is disposed in the semiconductor substrate. The vertical selection transistor is disposed under the state transistor, and configured to select the state transistor.
    Type: Application
    Filed: April 1, 2021
    Publication date: July 22, 2021
    Inventors: Quentin Hubert, Abderrezak Marzaki, Julien Delalleau
  • Patent number: 10991710
    Abstract: A non-volatile memory device includes a vertical state transistor disposed in a semiconductor substrate, where the vertical state transistor is configured to trap charges in a dielectric interface between a semiconductor well and a control gate. A vertical selection transistor is disposed in the semiconductor substrate. The vertical selection transistor is disposed under the state transistor, and configured to select the state transistor.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: April 27, 2021
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Quentin Hubert, Abderrezak Marzaki, Julien Delalleau
  • Patent number: 10930351
    Abstract: A non-volatile memory cell includes a selection transistor having an insulated selection gate embedded in a semiconducting substrate region. A semiconducting source region contacts a lower part of the insulated selection gate. A state transistor includes a floating gate having an insulated part embedded in the substrate region above an upper part of the insulated selection gate, a semiconducting drain region, and a control gate insulated from the floating gate and located partially above the floating gate. The source region, the drain region, the substrate region, and the control gate are individually polarizable.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: February 23, 2021
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventor: Julien Delalleau
  • Publication number: 20210036126
    Abstract: In fabricating metal-oxide-semiconductor field-effect transistors (MOSFETs), the implanting of lightly doped drain regions is performed before forming gate regions with a physical gate length that is associated with a reference channel length. The step of implanting lightly doped drain regions includes forming an implantation mask defining the lightly doped drain regions and an effective channel length of each MOSFET. The forming of the implantation mask is configured to define an effective channel length of at least one MOSFET that is different from the respective reference channel length.
    Type: Application
    Filed: July 27, 2020
    Publication date: February 4, 2021
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Julien Delalleau, Franck JULIEN
  • Publication number: 20200402928
    Abstract: An integrated circuit includes a substrate, an interconnection part, and an isolating region located between the substrate and the interconnection part. A decoy structure is located within the isolating region and includes a silicided sector which is electrically isolated from the substrate.
    Type: Application
    Filed: September 8, 2020
    Publication date: December 24, 2020
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Julien DELALLEAU, Christian RIVERO
  • Publication number: 20200395466
    Abstract: A MOS transistor is produced on and in an active zone and included a source region and a drain region. The active zone has a width measured transversely to a source-drain direction. A conductive gate region of the MOS transistor includes a central zone and, at a foot of the central zone, at least one stair that extends beyond the central zone along at least an entirety of the width of the active zone.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 17, 2020
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Julien DELALLEAU, Christian RIVERO
  • Publication number: 20200365528
    Abstract: A semiconductor substrate has a front face and a back face. A first contact and a second contact, spaced apart from each other, are located on the front face. An electrically conductive wafer is located on the back face. A detection circuit is configured to detect a thinning of the substrate from the back face. The detection circuit including a measurement circuit that takes a measurement of a resistive value of the substrate between said at least one first contact, said at least one second contact and said electrically conductive wafer. Thinning is detected in response to the measured resistive value.
    Type: Application
    Filed: May 12, 2020
    Publication date: November 19, 2020
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Alexandre SARAFIANOS, Fabrice MARINET, Julien DELALLEAU
  • Patent number: 10804222
    Abstract: An integrated circuit includes a substrate, an interconnection part, and an isolating region located between the substrate and the interconnection part. A decoy structure is located within the isolating region and includes a silicided sector which is electrically isolated from the substrate.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: October 13, 2020
    Assignee: STMicrolectronics (Rousset) SAS
    Inventors: Julien Delalleau, Christian Rivero
  • Patent number: 10797158
    Abstract: A MOS transistor is produced on and in an active zone and included a source region and a drain region. The active zone has a width measured transversely to a source-drain direction. A conductive gate region of the MOS transistor includes a central zone and, at a foot of the central zone, at least one stair that extends beyond the central zone along at least an entirety of the width of the active zone.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: October 6, 2020
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Julien Delalleau, Christian Rivero
  • Patent number: 10763213
    Abstract: An integrated circuit includes a substrate and an interconnect. A substrate zone is delineated by an insulating zone. A polysilicon region extends on the insulating zone and includes a strip part. An isolating region is situated between the substrate and the interconnect and covers the substrate zone and the polysilicon region. A first electrically conductive pad passes through the isolating region and has a first end in electrical contact with both the strip part and the substrate zone. A second end of the electrically conductive pad is in electrical contact with the interconnect. A second electrically conductive pad also passes through the isolating region to make electrical contact with another region. The first and second electrically conductive pads have equal or substantially equal cross sectional sizes, within a tolerance.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: September 1, 2020
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Julien Delalleau, Christian Rivero
  • Patent number: 10714583
    Abstract: A MOS transistor is produced on and in an active zone which includes a source region and a drain region. The active zone is surrounded by an insulating region. A conductive gate region of the transistor has two flanks which extend transversely to a source-drain direction, and the conductive gate region overlaps two opposite edges of the active zone act overlap zones. The conductive gate region includes, at a location of at least one overlap zone, at least one conductive tag which projects from at least one flank at a foot of the conductive gate region. The conductive tag covers a part of the active zone and a part of the insulating region.
    Type: Grant
    Filed: July 17, 2018
    Date of Patent: July 14, 2020
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Christian Rivero, Guilhem Bouton, Pascal Fornara, Julien Delalleau