Patents Assigned to STMicroelectronics
  • Patent number: 8432006
    Abstract: A method that includes forming an opening between at least one first electrode and a second electrode by forming a recess in a first electrode layer, the recess having sidewalls that correspond to a surface of the at least one first electrode, forming a first sacrificial layer on the sidewalls of the recess, the first sacrificial layer having a first width that corresponds to a second width of the opening, forming a second electrode layer in the recess that corresponds to the second electrode, and removing the first sacrificial layer to form the opening between the second electrode and the at least one first electrode.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics, Inc.
    Inventors: Venkatesh Mohanakrishnaswamy, Loi N. Nguyen
  • Patent number: 8433084
    Abstract: A microelectromechanical-acoustic-transducer assembly has: a first die integrating a MEMS sensing structure having a membrane, which has a first surface in fluid communication with a front chamber and a second surface, opposite to the first surface, in fluid communication with a back chamber of the microelectromechanical acoustic transducer, is able to undergo deformation as a function of incident acoustic-pressure waves, and faces a rigid electrode so as to form a variable-capacitance capacitor; a second die, integrating an electronic reading circuit operatively coupled to the MEMS sensing structure and supplying an electrical output signal as a function of the capacitive variation; and a package, housing the first die and the second die and having a base substrate with external electrical contacts. The first and second dice are stacked in the package and directly connected together mechanically and electrically; the package delimits at least one of the front and back chambers.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Sebastiano Conti, Benedetto Vigna, Mario Francesco Cortese
  • Patent number: 8432927
    Abstract: A fixed-size data packet switch comprising: 1) N input ports for receiving incoming fixed-size data packets at a first data rate and outputting the fixed-size data packets at the first data rate; 2) N output ports for receiving fixed-size data packets at the first data rate and outputting the fixed-size data packets at the first data rate; and 3) a switch fabric interconnecting the N input ports and the N output ports.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics Ltd.
    Inventor: Ge Nong
  • Patent number: 8432304
    Abstract: A thermometer coded line is configured to convert a time interval to a digital code for subsequent processing in order to output a value representative of said time interval. A digital peak detector is coupled to receive output from the thermometer coded line, the detector operating for correction of an undesired code of said digital code in order to ensure a valid output of said value. A majority logic circuit is coupled between the thermometer coded line and the digital peak detector, the logic circuit operating for correction of undesired code of said digital code in order to ensure the valid output of said value. The detector functions to correct any undesired code not corrected by, or introduced by, the logic circuit.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics (Research & Development) Ltd
    Inventor: Neale Dutton
  • Patent number: 8432652
    Abstract: There is described a protection apparatus against electrostatic discharges for an integrated circuit; said integrated circuit comprises a radiofrequency or higher frequencies internal circuit. The internal circuit has a first and a second terminals for the output or the input of a radiofrequency or higher frequencies signal. The apparatus comprises first means for electrically connecting said first and second terminals of the internal circuit to at least a PAD and the integrated circuit comprises at least a first and a second supply circuital lines and at least a first and a second protection devices against electrostatic discharges connected to said first and second supply lines. First means have a resistive component and each of said first and second protection devices against the electrostatic discharges have a parasitic capacitive component.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Angelo Scuderi, Giovanni Cali, Salvatore Scaccianoce
  • Patent number: 8432656
    Abstract: A feedback control method of a pulse width modulator (PWM) voltage converter may include generating a control voltage as a sum of an offset voltage and an error signal representing a difference between a scaled replica of a regulated output voltage of the voltage converter and a reference voltage, comparing the control voltage with a ramp signal, the comparing operation generating PWM driving signals for the voltage converter, comparing the regulated output voltage of the voltage converter with an overshoot threshold, and reducing the control voltage when the overshoot threshold is exceeded.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventor: Osvaldo Enrico Zambetti
  • Patent number: 8432726
    Abstract: A secure memory includes a bistable memory cell having a programmed start-up state, and means for flipping the state of the cell in response to a flip signal. The memory may include a clock for generating the flip signal with a period, for example, smaller than the acquisition time of an emission microscope.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics SA
    Inventors: Philippe Candelier, Laurent Dedieu, Noureddine Larhriq
  • Patent number: 8432042
    Abstract: The present disclosure provides a system and method for relieving stress and providing improved heat management in a 3D chip stack of a multichip package. A stress relief apparatus is provided to allow the chip stack to adjust in response to pressure, thereby relieving stress applied to the chip stack. Additionally, improved heat management is provided such that the chip stack adjusts in response to thermal energy generated within the chip stack to remove heat from between chips of the stack, thereby allowing the chips to operate as desired without compromising the performance of the chip stack. The chip stack also includes an array of flexible conductors disposed between two chips, thereby providing an electrical connection between the two chips.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics, Inc.
    Inventor: John Hongguang Zhang
  • Patent number: 8432847
    Abstract: Methods and apparatus for transmitting a video frame in wireless local area network communications are proposed. In one aspect, a method generates and transmits an IEEE 802.11 media access control (MAC) frame containing a video transport stream (VTS) frame. The VTS frame includes a video frame and a VTS control header that includes control information with respect to the video frame.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics, Inc.
    Inventors: Liwen Chu, George A. Vlantis
  • Patent number: 8431922
    Abstract: A lateral phase change memory includes a pair of electrodes separated by an insulating layer. The first electrode is formed in an opening in an insulating layer and is cup-shaped. The first electrode is covered by the insulating layer which is, in turn, covered by the second electrode. As a result, the spacing between the electrodes may be very precisely controlled and limited to very small dimensions. The electrodes are advantageously formed of the same material, prior to formation of the phase change material region.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: April 30, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Richard Dodge, Guy Wicker
  • Publication number: 20130102064
    Abstract: An apparatus (100) for performing thermal cycles has a frame (131-134, 137, 147) enclosing a thermal chamber (110) laterally delimited by delimitation walls (103, 154a, 154b) and configured so as to be delimited at the bottom by a reaction holder (104) carrying a plurality of reaction chambers (107) designed to receive chemical reaction substances. A lid (105), of transparent material, is fixed to the frame and delimits the thermal chamber at the top. A source of light radiation (165) is arranged outside the thermal chamber (110) facing the lid (115) and is configured to generate an excitation light radiation. A detector of light radiation (166) is arranged outside the thermal chamber facing the lid and is configured to collect a light radiation emitted in use by the reaction chambers (107). A processor (171) is connected to the detector of light radiation (166) and is configured to detect, in use, a feature of the light radiation emitted.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 25, 2013
    Applicant: STMicroelectronics S.r.l.
    Inventor: STMicroelectronics S.r.l.
  • Publication number: 20130103912
    Abstract: An arrangement includes a first part and a second part. The first part includes a memory controller for accessing a memory, at least one first cache memory and a first directory. The second part includes at least one second cache memory configured to request access to said memory. The first directory is configured to use a first coherency protocol for the at least one first cache memory and a second different coherency protocol for the at least one second memory.
    Type: Application
    Filed: June 6, 2012
    Publication date: April 25, 2013
    Applicant: STMicroelectronics (R&D) Ltd.
    Inventors: Andrew Michael Jones, Stuart Ryan
  • Publication number: 20130099792
    Abstract: A spark plug, including an insulator embedding a first metallic electrode axially extending therethrough from a high voltage outer end terminal to the center of the inner end of the insulator from which it protrudes; a metallic ground electrode isolated from the first electrode and having an extended inner termination facing toward the first electrode extending from the insulator tip for defining therebetween a spark gap, a resistive element connected to the ground electrode such that upon mounting the spark plug in an internal combustion engine, the ground electrode electrically connects to the engine body through the resistive element; and to a second outer termination of the ground electrode, adapted to constitute an accessible sensing terminal.
    Type: Application
    Filed: October 18, 2012
    Publication date: April 25, 2013
    Applicant: STMicroelectronics S.r.I.
    Inventor: STMicroelectronics S.r.I.
  • Patent number: 8427008
    Abstract: An electronic power supply circuit for a load composed of at least two independent circuit branches connected in parallel to each other, where a first branch requires a different power supply voltage from the power supply voltage of a second branch. The circuit includes a step-up converter, a timer circuit connected to the step-up converter so that the converter generates, alternately, at least a first output voltage able to power the first circuit branch and a second output voltage able to power a second circuit branch, a regulation circuit able to regulate the overvoltages at the ends of an output capacitor of the converter during commutations between the different output voltages; and a commutation circuit able to activate the step-up converter, according to the timer signals coming from the timer circuit, when the output voltage at the ends of the output capacitor has reached the level needed to power the activated branch and regulate the current flowing thereto.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: April 23, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventors: Salvatore Rosario Musumeci, Maria Francesca Seminara, Marianna Sanza, Patrizia Milazzo
  • Patent number: 8427273
    Abstract: An embodiment of a resistor formed by at least one first portion and one second portion, electrically coupled to one another and with different crystalline phases. The first portion has a positive temperature coefficient, and the second portion has a negative temperature coefficient. The first portion has a first resistivity, and the second portion has a second resistivity, and the portions are coupled so that the resistor has an overall temperature coefficient that is approximately zero.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: April 23, 2013
    Assignee: STMicroelectronics S.r.l.
    Inventor: Stefania Maria Serena Privitera
  • Patent number: 8426234
    Abstract: An integrated circuit including an intrusion attack detection device. The device includes a single-piece formed of a conductive material and surrounded with an insulating material and includes at least one stretched or compressed elongated conductive track, connected to a mobile element, at least one conductive portion distant from said piece and a circuit for detecting an electric connection between the piece and the conductive portion. A variation in the length of said track in an attack by removal of the insulating material, causes a displacement of the mobile element until it contacts the conductive portion.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 23, 2013
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Pascal Fornara, Christian Rivero
  • Patent number: 8427196
    Abstract: A system includes analog supply circuitry providing first and second analog potentials. A switch module assumes first or second states to enable and inhibit transfer of an analog electrical signal from a source module to a user module based upon a driving electrical signal. A driving device drives, based upon the driving electrical signal, a control terminal of the switch module, allowing the switch module to assume the first or second state. The driving device allows the switch module to make a first driving transition from the first state to the second state, and a second driving transition from the second state to the first state. The driving device alternately connects the control terminal to a first reference potential, during the first state, and to a second reference potential, during the second state.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: April 23, 2013
    Assignee: STMicroelectronics S.R.L.
    Inventors: Pierangelo Confalonieri, Federico Guanziroli, Marco Zamprogno
  • Patent number: 8428142
    Abstract: A system and method transcodes an input video bit stream having a first encoding profile into an output video bit stream having a second encoding profile. The system includes a first module and a second module. The system further includes a memory module. The first module decodes the input video bit stream for generating pixel data and macroblock specifications. The second module encodes the pixel data and the macroblock specifications for constructing the output video bit stream. The memory module includes a first buffer module and a second buffer module. The first buffer module stores the pixel data and the second buffer module stores the macroblock specifications.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: April 23, 2013
    Assignee: STMicroelectronics International N.V.
    Inventors: Sumit Johar, Ravin Sachdeva
  • Patent number: 8429513
    Abstract: A method of verifying the integrity of code in a programmable memory, the method including: receiving the code from an insecure memory; generating error detection bits for the code as it is received from the insecure memory; storing the code and the error detection bits in the programmable memory; and verifying the integrity of the code stored in the programmable memory by performing an authentication check on the code and the error detection bits stored in the programmable memory.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: April 23, 2013
    Assignee: STMicroelectronics (Research & Development) Limited
    Inventors: David Smith, Andrew Marsh
  • Patent number: 8426261
    Abstract: A method for preparing a multilayer substrate includes the step of deposing an epitaxial ?-Al2O3 Miller index (001) layer on a Si Miller index (001) substrate.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: April 23, 2013
    Assignees: STMicroelectronics S.A., Centre National de la Recherche Scientifique, Ecole Centrale de Lyon
    Inventors: Clément Merckling, Mario El-Kazzi, Guillaume Saint-Girons, Guy Hollinger