Patents Assigned to STMicroelectronics (Crolles 2)
  • Patent number: 10535693
    Abstract: A semiconductor body of a first conductivity type and doped with a first doping level includes, at a front side surface thereof, a well of a second conductivity type and a region doped with the first conductivity type at a second doping level greater than the first doping level. An insulated vertical gate structure separates the region from the well. Buried iInsulated electrodes extend from the front side surface completely through the well and into a portion of the semiconductor body underneath the well. A conductive material portion of each buried insulated electrode is configured to receive a bias voltage and a conductive material portion of insulated vertical gate structure is configured to receive a gate voltage. The semiconductor body is delimited by a capacitive deep trench isolation that is biased at the same voltage as the buried insulated electrode.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: January 14, 2020
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Francois Roy
  • Patent number: 10532379
    Abstract: A mechanical structure comprising a stack including an active substrate and at least one actuator designed to generate vibrations at the active substrate, the stack comprises an elementary structure for amplifying the vibrations: positioned between the actuator and the active substrate, the structure designed to transmit and amplify the vibrations; and comprising at least one trench, located between the actuator and the active substrate. A method for manufacturing the structure comprising the use of a temporary substrate is provided.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 14, 2020
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, STMICROELECTRONICS (CROLLES 2) SAS, UNIVERSITÉ GRENOBLE ALPES
    Inventors: Fabrice Casset, Skandar Basrour, Cédrick Chappaz, Jean-Sébastien Danel
  • Publication number: 20200013856
    Abstract: A bipolar transistor is supported by a single-crystal silicon substrate including a collector connection region. A first epitaxial region forms a collector region doped with a first conductivity type on the collector connection region. The collector region includes a counter-doped region of a second conductivity type. A second epitaxial region forms a base region of a second conductivity type on the first epitaxial region. Deposited semiconductor material forms an emitter region of the first conductivity type on the second epitaxial region. The collector region, base region and emitter region are located within an opening formed in a stack of insulating layers that includes a sacrificial layer. The sacrificial layer is selectively removed to expose a side wall of the base region. Epitaxial growth from the exposed sidewall forms a base contact region.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Pascal CHEVALIER, Alexis GAUTHIER
  • Patent number: 10531022
    Abstract: Each pixel of a global shutter back-side illuminated image sensor includes a photosensitive area. On a front surface, a first transistor includes a vertical ring-shaped electrode penetrating into the photosensitive area and laterally delimiting a memory area. The memory area penetrates into the photosensitive area less deeply than the insulated vertical ring-shaped electrode. A read area is formed in an intermediate area which is formed in the memory area. The memory area, the intermediate area and read area define a second transistor having an insulated horizontal electrode forming a gate of the second transistor. The memory area may be formed by a first and second memory areas and an output signal is generated indicative of a difference between charge stored in the first memory area and charge stored in the second memory area after a charge transfer to the first memory area.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: January 7, 2020
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Francois Roy
  • Patent number: 10522593
    Abstract: Two phase-change memory cells are formed from a first conductive via, a second conductive and a central conductive via positioned between the first and second conductive vias where a layer of phase-change material is electrically connected to the first and second conductive vias by corresponding resistive elements and insulated from the central conductive via by an insulating layer. The conductive vias each include a lower portion made of a first metal (such as tungsten) and an upper portion made of a second metal (such as copper). Drains of two transistors are coupled to the first and second conductive vias while sources of those two transistors are coupled to the central conductive via.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: December 31, 2019
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Emmanuel Gourvest, Yannick Le Friec, Laurent Favennec
  • Publication number: 20190393207
    Abstract: A three-dimensional integrated structure is formed by a first substrate with first components oriented in a first direction and a second substrate with second components oriented in a second direction. An interconnection level includes electrically conducting tracks that run in a third direction. One of the second direction and third direction forms a non-right and non-zero angle with the first direction. An electrical link formed by at least one of the electrically conducting tracks electrically connected two points of the first or of the second components.
    Type: Application
    Filed: September 6, 2019
    Publication date: December 26, 2019
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Alexandre AYRES, Bertrand BOROT
  • Publication number: 20190386142
    Abstract: A ferroelectric field effect transistor includes a semiconductor substrate, with first and second source/drain regions being formed within the semiconductor substrate and being separated by a channel region. An interface layer is disposed on the channel region. A gate insulator layer is disposed on the interface layer. A ferroelectric layer is disposed on the gate insulator layer.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 19, 2019
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Mickael GROS-JEAN, Julien FERRAND
  • Patent number: 10510955
    Abstract: A phase change memory includes an L-shaped resistive element having a first part that extends between a layer of phase change material and an upper end of a conductive via and a second part that rests at least partially on the upper end of the conductive via and may further extend beyond a peripheral edge of the conductive via. The upper part of the conductive via is surrounded by an insulating material that is not likely to adversely react with the metal material of the resistive element.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: December 17, 2019
    Assignees: STMicroelectronics (Crolles 2) SAS, STMicroelectronics S.r.l.
    Inventors: Pierre Morin, Michel Haond, Paola Zuliani
  • Patent number: 10511147
    Abstract: The invention relates to a III-V heterostructure laser device (1) arranged in and/or on silicon, comprising: a III-V heterostructure gain medium (3); and an optical rib waveguide (11), arranged facing the gain medium (3) and comprising a slab waveguide (15) equipped with a longitudinal rib (17), the optical rib waveguide (11) being arranged in the silicon. The optical rib waveguide (11) is oriented so that at least one Bragg grating (19, 19a, 19b) is arranged on that side (21) of the slab waveguide (15) which is proximal relative to the gain medium (3) and in that the rib (17) is placed on that side (23) of the slab waveguide (15) that is distal relative to the gain medium (3).
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: December 17, 2019
    Assignees: Commissariat A L'Energie Atomique et aux Energies Alternatives, STMICROELECTRONICS SA, STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Thomas Ferrotti, Badhise Ben Bakir, Alain Chantre, Sebastien Cremer, Helene Duprez
  • Patent number: 10504897
    Abstract: An integrated circuit is provided, including a first pair including a first nMOS transistor and a first pMOS transistor; a second pair including a second nMOS transistor and a second pMOS transistor; the first and second pMOS transistors including a channel that is subjected to compressive stress and made of an SiGe alloy, and a gate of said transistors being positioned at least 250 nm from a border of an active zone of said transistors; a third pair including a third nMOS transistor having a same construction as the first nMOS transistor and a third pMOS transistor having a same construction as the second pMOS transistor and exhibiting a compressive stress that is lower by at least 250 MPa, the gate of said transistors of the third pair being positioned at most 200 nm from the border.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: December 10, 2019
    Assignees: Commissariat A L'Energie Atomique et aux Energies Alternatives, STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Francois Andrieu, Remy Berthelon
  • Patent number: 10503259
    Abstract: A vibrating device comprises: a first support configured to be deformed having a surface defined in a plane in directions X and Y; at least one actuator configured to generate plate modes propagated in the first support; the first support comprising: at least one defect with respect to the propagation of the plate modes; the defect being of geometrical nature or corresponding to a structural heterogeneity; comprising: a second support; at least one embedded mechanical reflector secured to the first support and in contact with the first support, configured to immobilize the first support in at least one direction Z at right angles to the directions X and Y, the mechanical reflector being secured to the second support and; the embedded mechanical reflector being configured to isolate a so-called active zone belonging to the surface defined in a plane in directions X and Y in which the plate modes are propagated, the active zone excluding the defect; the actuator being situated in the active region.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 10, 2019
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, STMICROELECTRONICS (CROLLES 2) SAS, UNIVERSITE GRENBOLE ALPES, INSTITUT POLYTECHNIQUE DE GRENOBLE
    Inventors: Cédrick Chappaz, Fabrice Casset, Skandar Basrour, Marie Gorisse
  • Patent number: 10497735
    Abstract: The invention relates to an image sensor and method for reducing image defects. A photoconversion area is formed in a semiconductor layer. An insulating layer formed over the semiconductor layer contains a metal element. A lens over the insulting layer is positioned opposite the photoconversion area to focus light on it. A layer of light-absorbing material is deposited on the side of the metal element facing the lens to prevent reflection of parasitic light rays within the image device.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: December 3, 2019
    Assignee: STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Axel Crocherie, Etienne Mortini, Jean Luc Huguenin
  • Patent number: 10497653
    Abstract: A decoupling capacitor includes: two capacitor cells sharing the same well; a first trench isolation passing through the well between the two cells without reaching the bottom of the well; and a contact with the well formed in each cell.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: December 3, 2019
    Assignees: STMICROELECTRONICS (CROLLES 2) SAS, STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Mathieu Lisart, Benoit Froment
  • Publication number: 20190363190
    Abstract: Longitudinal trenches extend between and on either side of first and second side-by-side strip areas. Transverse trenches extend from one edge to another edge of the first strip area to define tensilely strained semiconductor slabs in the first strip area, with the second strip area including portions that are compressively strained in the longitudinal direction and/or tensilely strained in the transverse direction. In the first strip area, N-channel MOS transistors are located inside and on top of the semiconductor slabs. In the second strip area, P-channel MOS transistors are located inside and on top of the portions.
    Type: Application
    Filed: August 7, 2019
    Publication date: November 28, 2019
    Applicants: STMicroelectronics (Crolles 2) SAS, Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Remy BERTHELON, Francois ANDRIEU
  • Publication number: 20190363021
    Abstract: An integrated circuit includes first semiconductor regions each having a silicided portion with group-III, group-IV, and/or group-V atoms implanted therein. In each first semiconductor region, a concentration of the group-III, group-IV, and/or group-V atoms is maximum at an interface between the silicided portion and a non-silicided portion. Other semiconductor regions in the integrated circuit each include a silicided portion also having group-III, group-IV, and/or group-V atoms implanted therein. The silicided portions of the first semiconductor regions are thicker than the silicided portions of the other semiconductor regions. The group-III, group-IV, and/or group-V atoms of the first semiconductor regions and of the other semiconductor regions may be carbon and/or germanium atoms.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 28, 2019
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventor: Magali GREGOIRE
  • Patent number: 10488499
    Abstract: A time-of-flight detection pixel includes a photosensitive area including a first doped layer and a charge collection area extending in the first doped layer. At least two charge storage areas extend from the charge collection area, each including a first well more heavily doped than the charge collection area and separated from the charge collection area by a first portion of the first doped layer which is coated with a gate. Each charge storage area is laterally delimited by two insulated conductive electrodes, extending parallel to each other and facing each other. A second heavily doped layer of opposite conductivity coats the pixel except for at each portion of the first doped layer coated with the gate.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: November 26, 2019
    Assignees: STMicroelectronics (Crolles 2) SAS, Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Francois Roy, Marie Guillon, Yvon Cazaux, Boris Rodrigues, Alexis Rochas
  • Patent number: 10488587
    Abstract: A photonic integrated circuit may include a silicon layer including a waveguide and at least one other photonic component. The photonic integrated circuit may also include a first insulating region arranged above a first side of the silicon layer and encapsulating at least one metallization level, a second insulating region arranged above a second side of the silicon layer and encapsulating at least one gain medium of a laser source optically coupled to the waveguide.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 26, 2019
    Assignees: STMicroelectronics SA, STMicroelectronics (Crolles 2) SAS
    Inventors: Alain Chantre, Sébastien Cremer
  • Patent number: 10480833
    Abstract: A heat-transferring device is formed by a stack that includes at least one heat-conducting layer and at least one heat-absorbing layer. The at least one heat-conducting layer has at least one heat-collecting section placed facing a heat source and at least one heat-evacuating section placed facing a heat sink. The at least one heat-absorbing layer includes a phase-change material. One face of the at least one heat-absorbing layer is adjoined to at least one portion of at least one face of the heat-conducting layer.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: November 19, 2019
    Assignees: STMicroelectronics (Crolles 2) SAS, STMicroelectronics SA
    Inventors: Rafael Augusto Prieto Herrera, Jean-Philippe Colonna, Perceval Coudrain
  • Patent number: 10475827
    Abstract: An electronic image capture device includes a first portion and a second portion. The first portion is formed by a substrate wafer provided on one side with electronic circuits and a dielectric layer with a network of electrical connections and external electrical contacts on an outer surface. The second portion includes a pixel wafer capable of generating electrical signals under the effect of light, a substrate wafer mounted to the pixel wafer and provided with electronic circuits and a dielectric layer with a network of electrical connections and external electrical contacts on an outer surface. The outer surfaces and external electrical contacts are bonded to each other so as to mount the first portion to the second portion. A connection pad extends through a hole in the pixel wafer to make electrical connection to the network of electrical connections of the second portion.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: November 12, 2019
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Francois Roy
  • Patent number: 10475848
    Abstract: An imaging cell includes a skimming gate transistor coupled between a photosensitive charge node and an intermediate node and a transfer gate transistor coupled between the intermediate node and a sense node. The skimming gate transistor includes a vertical gate electrode structure formed by a first capacitive deep trench isolation extending into a substrate and a second capacitive deep trench isolation extending into the substrate. A channel of the skimming gate transistor is positioned between the first and second capacitive deep trench isolations. Each capacitive deep trench isolation is formed by a trench that is lined with an insulating liner and filled with a conductive or semiconductive material.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: November 12, 2019
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventor: Francois Roy