Patents Assigned to STMICROELECTRONICS (ROUSSET)
  • Patent number: 10431630
    Abstract: A MOS transistor with two vertical gates is formed within a substrate zone of a semiconductor substrate doped with a first type of conductivity and separated from a remaining portion of the substrate by two first parallel trenches extending in a first direction. An isolated gate region rests on each flank of the substrate zone and on a portion of the bottom of the corresponding trench to form the two vertical gates. At least one gate connection region electrically connects the two vertical gates. A first buried region located under the substrate zone is doped with a second type of conductivity to form a first conduction electrode of the MOS transistor. A second region doped with the second type of conductivity is located at the surface of the substrate zone to form a second conduction electrode of the MOS transistor.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: October 1, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Philippe Boivin, Jean-Jacques Fagot
  • Publication number: 20190295965
    Abstract: A semiconductor wafer includes first zones containing integrated circuits, each first zone including a substrate and a sealing ring at a periphery of the substrate. The first zones are separated from each other by second zones defining cutting lines or paths. The integrated circuit includes an electrically conductive fuse that extends between a first location inside the integrated circuit and a second location situated outside the integrated circuit beyond one of the cutting lines. This electrically conductive fuse includes a portion that passes through the sealing ring and another portion that straddles the adjacent cutting line. The portion of the fuse that passes through is electrically isolated from the sealing ring and from the substrate. The straddling portion is configured to be sliced, when cutting the wafer along the cutting line, so as to cause the fuse to change from an electrical on state to an electrical off state.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 26, 2019
    Applicant: STMicroelectronics (Rousset) SAS
    Inventor: Pascal Fornara
  • Publication number: 20190287862
    Abstract: An integrated circuit includes a semiconductor substrate with an electrically isolated semiconductor well. An upper trench isolation extends from a front face of the semiconductor well to a depth located a distance from the bottom of the well. Two additional isolating zones are electrically insulated from the semiconductor well and extending inside the semiconductor well in a first direction and vertically from the front face to the bottom of the semiconductor well. At least one hemmed resistive region is bounded by the two additional isolating zones, the upper trench isolation and the bottom of the semiconductor well. Electrical contacts are electrically coupled to the hemmed resistive region.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Applicants: STMicroelectronics (Crolles 2) SAS, STMicroelectronics (Rousset) SAS
    Inventors: Benoit FROMENT, Stephan NIEL, Arnaud REGNIER, Abderrezak MARZAKI
  • Patent number: 10419058
    Abstract: A contactless component, connected to an antenna, includes a plurality of terminals and a first, second, third, and fourth plurality of switchable auxiliary capacitors. The plurality of terminals include a first output terminal, a second output terminal, a first auxiliary terminal, and a second auxiliary terminal. Each of the first plurality of switchable auxiliary capacitors is connected between the first auxiliary terminal and the first output terminal. Each of the second plurality of switchable auxiliary capacitors is coupled between the first auxiliary terminal and a neutral point. Each of the third plurality of switchable auxiliary capacitors is coupled between the second auxiliary terminal and the second output terminal of the contactless component. Each of the fourth plurality of switchable auxiliary capacitors is coupled between the second auxiliary terminal and the neutral point.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: September 17, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Alexandre Tramoni
  • Patent number: 10418322
    Abstract: A method for making a photolithography mask for formation of electrically conducting contact pads between tracks of a metallization level and electrically active zones of integrated circuits formed on a semiconductor wafer includes forming a first mask region including first opening zones intended for the formation of the contact pads. The first opening zone has a first degree of opening that is below a threshold. A second mask region including additional opening zones is formed, with the overall degree of opening of the mask being greater than or equal to the threshold.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: September 17, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Guilhem Bouton, Patrick Regnier
  • Publication number: 20190279947
    Abstract: An integrated circuit includes a first domain supplied with power at a first supply voltage. A first transistor comprising in the first domain includes a first gate region and a first gate dielectric region. A second domain is supply with power at a second supply voltage and includes a second transistor having a second gate region and a second gate dielectric region, the second gate region being biased at a voltage that is higher than the first supply voltage. The first and second gate dielectric regions have the same composition, wherein that composition configures the first transistor in a permanently turned off condition in response to a gate bias voltage lower than or equal to the first supply voltage. The second transistor is a floating gate memory cell transistor, with the second gate dielectric region located between the floating and control gates.
    Type: Application
    Filed: March 5, 2019
    Publication date: September 12, 2019
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Abderrezak MARZAKI, Mathieu LISART
  • Patent number: 10403730
    Abstract: The present disclosure relates to a memory cell comprising a vertical selection gate extending in a trench made in a substrate, a floating gate extending above the substrate, and a horizontal control gate extending above the floating gate, wherein the floating gate also extends above a portion of the vertical selection gate over a non-zero overlap distance. Application mainly to the production of a split gate memory cell programmable by hot-electron injection.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: September 3, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Francesco La Rosa, Stephan Niel, Arnaud Regnier, Julien Delalleau
  • Patent number: 10404263
    Abstract: A programmable digital-to-analog converter includes an analog circuit that converts a binary word into a value of analog voltage and a digital circuit that supplies the binary word starting from a maximum value decremented by a decrement value.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 3, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Vincent Onde, Jean-Francois Link
  • Patent number: 10403368
    Abstract: A non-volatile memory device includes a matrix memory plane with columns of memory words respectively formed on each row of the memory plane by groups of memory cells and control elements respectively associated with the memory words of each row. At least some of the control elements associated with the memory words of the corresponding row form at least one control block of B control elements disposed next to one another, adjacent to a memory block containing the B memory words disposed next to one another and associated with these B control elements, a first electrically-conducting link connecting one of the B control elements to all the control electrodes of the state transistors of the corresponding group of memory cells and B-1 second electrically-conducting link(s) respectively connecting the B-1 control element(s) to all the control electrodes of the state transistors of the B-1 corresponding group(s) of memory cells.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: September 3, 2019
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: François Tailliet, Marc Battista
  • Patent number: 10404246
    Abstract: A comparison circuit includes an input interface configured to receive input signals and an output interface configured to deliver an output signal. A comparator is coupled between the input interface and the output interface. An amplifier is coupled between the input interface and the comparator. A neutralization circuit is configured to neutralize any change of state of the output signal starting from each moment in time at which the change of state of the output signal occurs and lasting for a second duration of propagation that compensates for a duration of propagation of signals within the amplifier.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 3, 2019
    Assignees: STMICROELECTRONIC (ROUSSET) SAS, STMICROELECTRONICS (GRENOBLE 2) SAS
    Inventors: Vincent Binet, David Chesneau
  • Patent number: 10402353
    Abstract: An embodiment system includes a first processor configured to process a suite of instructions and a second processor configured to process a subset of the suite of instructions. The system further includes a power management circuit configured to select the first processor or the second processor as a selected processor, the power management circuit being further configured to activate the selected processor or place the selected processor on standby. The system also includes a first peripheral device configured to generate a first interrupt signal, a switch configured to direct the first interrupt signal to the selected processor, and a first memory configured to store a first interrupt routine associated with the first interrupt signal, the selected processor being configured to execute the first interrupt routine in response to the first interrupt signal.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: September 3, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Dragos Davidescu, Sandrine Lendre, Olivier Ferrand
  • Publication number: 20190267922
    Abstract: Control over the operation of an electrically-controlled motor is supported by an interface circuit between the electrically-controlled motor and a near-field radio frequency communication controller. The interface circuit includes a first circuit that receives at least one control set point through a near-field radio frequency communication issued by the near-field radio frequency communication controller. A second circuit of the interface generates one or more electric signals in pulse width modulation based on the control set point.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 29, 2019
    Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Rousset) SAS
    Inventors: Gwenael MAILLET, Jean-Louis LABYRE, Gilles BAS
  • Patent number: 10389530
    Abstract: A method for processing content stored on a component is disclosed. A first partition of a first memory is encrypted with a first encryption key and a second partition of the first memory is encrypted with a second encryption key. The second encryption key is different from the first encryption key. The first encryption key is stored in a storage register of the component and the second encryption key is stored in a first location of a non-volatile memory. A memory address of the first location is stored in the first partition of the first memory.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: August 20, 2019
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Fabrice Marinet, Mathieu Lisart
  • Patent number: 10388695
    Abstract: Method of wireless communication between a first device and a second device, in which, the first device and the second device comprising respectively a first thermoelectric generator and a second thermoelectric generator, the two thermoelectric generators being in thermal coupling, a first signal is generated within the first device, the first thermoelectric generator is electrically powered as a function of the first signal so as to create a first thermal gradient in the said first generator and a second thermal gradient in the second generator, and a second signal is generated within the second device on the basis of the electrical energy produced by the second thermoelectric generator in response to the said second thermal gradient.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: August 20, 2019
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Pascal Fornara, Christian Rivero
  • Patent number: 10388724
    Abstract: An electronic chip includes a doped semiconductor substrate of a first conductivity type, a doped buried layer of a second conductivity type overlying the substrate, and a first doped well of the first conductivity type overlying the buried layer. Circuit components can be formed at a top surface of the first doped well and separated from the buried layer. A current detector is coupled to the buried layer and configured detect a bias current flowing into or out of the buried layer.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 20, 2019
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Clement Champeix, Nicolas Borrel, Alexandre Sarafianos
  • Patent number: 10389521
    Abstract: A circuit includes a first processing unit and a second identical processing unit. A first communication bus passes encrypted data between one of a plurality of functions and one or both of the first and second processing units. A selection circuit determines whether the encrypted bus is coupled to the first processing unit, the second processing unit, or both of the first and second processing units.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: August 20, 2019
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Mathieu Lisart, Benoit Durand, Massimo Cervetto, Christophe Laurencin
  • Publication number: 20190251042
    Abstract: A memory access control system includes a first circuit supporting direct access to the memory and a second circuit that is associated with the first circuit and programmed to restrict an area of the memory that is accessible to the first circuit. A central processing unit operates in privileged mode to program the second circuit with a range of addresses within the memory where read and write operations are permitted and further operates in limited mode to program the first circuit with a starting address for read and write operations associated with the task to be executed. Starting execution of the task is performed if the starting address is within the range of addresses. The execution of the task is terminated if an address generated during execution falls outside the range of addresses.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 15, 2019
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Dragos DAVIDESCU, Olivier FERRAND
  • Patent number: 10379254
    Abstract: A method for producing an integrated circuit pointed element is disclosed. An element has a projection with a concave part directing its concavity towards the element. The element includes a first etchable material. A zone is formed around the concave part of the element. The zone includes a second material that is less rapidly etchable than the first material for a particular etchant. The first material and the second material are etched with the particular etchant to form an open crater in the concave part and thus to form a pointed region of the element.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: August 13, 2019
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Abderrezak Marzaki, Yoann Goasduff, Virginie Bidal, Pascal Fornara
  • Patent number: 10381344
    Abstract: Bipolar transistors and MOS transistors are formed in a common process. A semiconductor layer is arranged on an insulating layer. On a side of the bipolar transistors: an insulating region including the insulating layer is formed; openings are etched through the insulating region to delimit insulating walls; the openings are filled with first epitaxial portions; and the first epitaxial portions and a first region extending under the first epitaxial portions and under the insulating walls are doped. On the side of the bipolar transistors and on a side of the MOS transistors: gate structures are formed; second epitaxial portions are made; and the second epitaxial portions covering the first epitaxial portions are doped.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: August 13, 2019
    Assignees: STMicroelectronics (Crolles 2) SAS, STMicroelectronics (Rousset) SAS, Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Olivier Weber, Emmanuel Richard, Philippe Boivin
  • Publication number: 20190244915
    Abstract: A semiconductor substrate of an integrated circuit is protected by a coating. The semiconductor includes a front face and a rear face. To detect a breach of the integrity of a semiconductor substrate of an integrated circuit from the rear face, an opening of the coating facing the rear face of the substrate is detected. In response thereto, an alarm is generated. The detection is performed by making resistance measurements with respect to the semiconductor substrate and comparing the measured resistance to a nominal resistive value of the semiconductor substrate.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 8, 2019
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Alexandre SARAFIANOS, Bruno NICOLAS, Daniele FRONTE