Patents Assigned to STMicroelectronics (Crolles 2)
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Patent number: 10535693Abstract: 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: GrantFiled: March 9, 2018Date of Patent: January 14, 2020Assignee: STMicroelectronics (Crolles 2) SASInventor: Francois Roy
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Patent number: 10532379Abstract: 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: GrantFiled: September 30, 2015Date of Patent: January 14, 2020Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, STMICROELECTRONICS (CROLLES 2) SAS, UNIVERSITÉ GRENOBLE ALPESInventors: Fabrice Casset, Skandar Basrour, Cédrick Chappaz, Jean-Sébastien Danel
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Publication number: 20200013856Abstract: 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: ApplicationFiled: September 16, 2019Publication date: January 9, 2020Applicant: STMicroelectronics (Crolles 2) SASInventors: Pascal CHEVALIER, Alexis GAUTHIER
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Patent number: 10531022Abstract: 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: GrantFiled: June 1, 2018Date of Patent: January 7, 2020Assignee: STMicroelectronics (Crolles 2) SASInventor: Francois Roy
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Patent number: 10522593Abstract: 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: GrantFiled: August 30, 2018Date of Patent: December 31, 2019Assignee: STMicroelectronics (Crolles 2) SASInventors: Emmanuel Gourvest, Yannick Le Friec, Laurent Favennec
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Publication number: 20190393207Abstract: 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: ApplicationFiled: September 6, 2019Publication date: December 26, 2019Applicant: STMicroelectronics (Crolles 2) SASInventors: Alexandre AYRES, Bertrand BOROT
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Publication number: 20190386142Abstract: 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: ApplicationFiled: June 11, 2019Publication date: December 19, 2019Applicant: STMicroelectronics (Crolles 2) SASInventors: Mickael GROS-JEAN, Julien FERRAND
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Patent number: 10510955Abstract: 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: GrantFiled: April 16, 2018Date of Patent: December 17, 2019Assignees: STMicroelectronics (Crolles 2) SAS, STMicroelectronics S.r.l.Inventors: Pierre Morin, Michel Haond, Paola Zuliani
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Patent number: 10511147Abstract: 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: GrantFiled: May 30, 2018Date of Patent: December 17, 2019Assignees: Commissariat A L'Energie Atomique et aux Energies Alternatives, STMICROELECTRONICS SA, STMICROELECTRONICS (CROLLES 2) SASInventors: Thomas Ferrotti, Badhise Ben Bakir, Alain Chantre, Sebastien Cremer, Helene Duprez
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Patent number: 10504897Abstract: 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: GrantFiled: September 18, 2017Date of Patent: December 10, 2019Assignees: Commissariat A L'Energie Atomique et aux Energies Alternatives, STMICROELECTRONICS (CROLLES 2) SASInventors: Francois Andrieu, Remy Berthelon
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Patent number: 10503259Abstract: 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: GrantFiled: December 3, 2015Date of Patent: December 10, 2019Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, STMICROELECTRONICS (CROLLES 2) SAS, UNIVERSITE GRENBOLE ALPES, INSTITUT POLYTECHNIQUE DE GRENOBLEInventors: Cédrick Chappaz, Fabrice Casset, Skandar Basrour, Marie Gorisse
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Patent number: 10497735Abstract: 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: GrantFiled: March 20, 2018Date of Patent: December 3, 2019Assignee: STMICROELECTRONICS (CROLLES 2) SASInventors: Axel Crocherie, Etienne Mortini, Jean Luc Huguenin
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Patent number: 10497653Abstract: 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: GrantFiled: October 19, 2017Date of Patent: December 3, 2019Assignees: STMICROELECTRONICS (CROLLES 2) SAS, STMICROELECTRONICS (ROUSSET) SASInventors: Mathieu Lisart, Benoit Froment
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Publication number: 20190363190Abstract: 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: ApplicationFiled: August 7, 2019Publication date: November 28, 2019Applicants: STMicroelectronics (Crolles 2) SAS, Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Remy BERTHELON, Francois ANDRIEU
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Publication number: 20190363021Abstract: 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: ApplicationFiled: May 15, 2019Publication date: November 28, 2019Applicant: STMicroelectronics (Crolles 2) SASInventor: Magali GREGOIRE
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Patent number: 10488499Abstract: 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: GrantFiled: December 22, 2016Date of Patent: November 26, 2019Assignees: STMicroelectronics (Crolles 2) SAS, Commissariat A L'Energie Atomique et aux Energies AlternativesInventors: Francois Roy, Marie Guillon, Yvon Cazaux, Boris Rodrigues, Alexis Rochas
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Patent number: 10488587Abstract: 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: GrantFiled: September 8, 2017Date of Patent: November 26, 2019Assignees: STMicroelectronics SA, STMicroelectronics (Crolles 2) SASInventors: Alain Chantre, Sébastien Cremer
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Patent number: 10480833Abstract: 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: GrantFiled: November 2, 2017Date of Patent: November 19, 2019Assignees: STMicroelectronics (Crolles 2) SAS, STMicroelectronics SAInventors: Rafael Augusto Prieto Herrera, Jean-Philippe Colonna, Perceval Coudrain
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Patent number: 10475827Abstract: 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: GrantFiled: July 13, 2018Date of Patent: November 12, 2019Assignee: STMicroelectronics (Crolles 2) SASInventor: Francois Roy
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Patent number: 10475848Abstract: 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: GrantFiled: December 12, 2017Date of Patent: November 12, 2019Assignee: STMicroelectronics (Crolles 2) SASInventor: Francois Roy