Patents by Inventor Richard Ferrant

Richard Ferrant 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).

  • Publication number: 20110133822
    Abstract: This invention provides a semiconductor device structure formed on a conventional semiconductor-on-insulator (SeOI) substrate defined by a pattern defining at least one field-effect transistor having: in the thin film of the SeOI substrate, a source region, a drain region, a channel region, and a front control gate region formed above the channel region; and in the base substrate beneath the buried oxide of the SeOI substrate, a back control gate region, arranged under the channel region and configured to shift the threshold voltage of the transistor in response to bias voltages. This invention also provides patterns defining standard-cell-type circuit structures and data-path-cell type circuit structures that include arrays of the FET patterns provided by this invention. Such circuit structures also include back gate lines connecting the back gate control regions. This invention also provides methods of operating and designing such semiconductor device structures.
    Type: Application
    Filed: January 25, 2011
    Publication date: June 9, 2011
    Inventors: Carlos Mazure, Richard Ferrant
  • Publication number: 20110134690
    Abstract: The invention relates to a method of controlling a DRAM memory cell of an FET transistor on a semiconductor-on-insulator substrate that includes a thin film of semiconductor material separated from a base substrate by an insulating layer or BOX layer, the transistor having a channel and two control gates, a front control gate being arranged on top of the channel and separated from the latter by a gate dielectric and a back control gate being arranged in the base substrate and separated from the channel by the insulating layer (BOX). In a cell programming operation, the front control gate and the back control gate are operated jointly by applying a first voltage to the front control gate and a second voltage to the back control gate, with the first voltage being lower in amplitude than the voltage needed to program the cell when no voltage is applied to the back control gate.
    Type: Application
    Filed: October 5, 2010
    Publication date: June 9, 2011
    Inventors: Carlos Mazure, Richard Ferrant
  • Publication number: 20110134698
    Abstract: The invention relates to a flash memory cell having a FET transistor with a floating gate on a semiconductor-on-insulator (SOI) substrate composed of a thin film of semiconductor material separated from a base substrate by an insulating buried oxide (BOX) layer, The transistor has in the thin film, a channel, with two control gates, a front control gate located above the floating gate and separated from it by an inter-gate dielectric, and a back control gate located within the base substrate directly under the insulating (BOX) layer and separated from the channel by only the insulating (BOX) layer. The two control gates are designed to be used in combination to perform a cell programming operation. The invention also relates to a memory array made up of a plurality of memory cells according to the first aspect of the invention, which can be in an array of rows and columns, and a method of fabricating such memory cells and memory arrays.
    Type: Application
    Filed: November 15, 2010
    Publication date: June 9, 2011
    Inventors: Carlos Mazure, Richard Ferrant
  • Patent number: 7817466
    Abstract: A semiconductor array includes a matrix of cells, the matrix being arranged in rows and columns of cells, and a plurality of control lines. Each cell is coupled to a number of control lines allowing to select and read/write said cell. At least one of said control lines is coupled to cells of a plurality of columns and of at least two rows of the matrix.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: October 19, 2010
    Assignees: STMicroelectronics (Crolles 2) SAS, Freescale Semiconductor, Inc.
    Inventors: Richard Ferrant, Franck Genevaux, David Burnett, Gerald Gouya, Pierre Malinge
  • Patent number: 7733693
    Abstract: There are many inventions described and illustrated herein. In a first aspect, the present invention is directed to a memory device and technique of reading data from and writing data into memory cells of the memory device. In this regard, in one embodiment of this aspect of the invention, the memory device and technique for operating that device that minimizes, reduces and/or eliminates the debilitating affects of the charge pumping phenomenon. This embodiment of the present invention employs control signals that minimize, reduce and/or eliminate transitions of the amplitudes and/or polarities. In another embodiment, the present invention is a semiconductor memory device including a memory array comprising a plurality of semiconductor dynamic random access memory cells arranged in a matrix of rows and columns.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: June 8, 2010
    Assignee: Innovative Silicon ISi SA
    Inventors: Richard Ferrant, Serguei Okhonin, Eric Carman, Michel Bron
  • Publication number: 20100002501
    Abstract: A thermally-assisted MRAM structure which is programmable at a writing mode operating temperature is presented and includes an anti-ferromagnet, an artificial anti-ferromagnet, a barrier layer, and a free magnetic layer. The anti-ferromagnet is composed of a material having a blocking temperature Tb which is lower than the writing mode operating temperature of the magnetic random access memory structure. The artificial anti-ferromagnet is magnetically coupled to the anti-ferromagnet, and includes first and second magnetic layers, and a coupling layer interposed therebetween, the first and second magnetic layers having different Curie point temperatures. The barrier layer is positioned to be between the second magnetic layer and the free magnetic layer.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Inventors: Rainer Leuschner, Ulrich Klostermann, Richard Ferrant
  • Publication number: 20090125789
    Abstract: A data bus including a plurality of logic blocks coupled in series, each logic block including at least one buffer for buffering at least one data bit transmitted via the data bus and at least one of the logic blocks further including circuitry coupled in parallel with the at least one buffer and arranged to determine a first bit of error correction code associated with the at least one data bit.
    Type: Application
    Filed: June 17, 2008
    Publication date: May 14, 2009
    Applicant: STMicroelectronics Crolles 2 SAS
    Inventors: Richard Ferrant, Cedric Maufront
  • Publication number: 20090121269
    Abstract: An integrated circuit includes a substrate and at least one active region. A transistor produced in the active region separated from the substrate. This transistor includes a source or drain first region and a drain or source second region which are connected by a channel. A gate structure is position on top of said channel and operates to control the channel. The gate structure is formed in a trench whose sidewalls have a shape which converges (narrows) in the width dimension towards the substrate. A capacitor is also formed having a first electrode, a second electrode and a dielectric layer between the electrodes. This capacitor is also formed in a trench. An electrode line is connected to the first electrode of the capacitor. The second electrode of the capacitor is formed in a layer shared in common with at least part of the drain or source second region of the transistor. A bit line is located beneath the gate structure. The integrated circuit may, for example, be a DRAM memory cell.
    Type: Application
    Filed: July 15, 2008
    Publication date: May 14, 2009
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Christian Caillat, Richard Ferrant
  • Publication number: 20090086535
    Abstract: A semiconductor array includes a matrix of cells, the matrix being arranged in rows and columns of cells, and a plurality of control lines. Each cell is coupled to a number of control lines allowing to select and read/write said cell. At least one of said control lines is coupled to cells of a plurality of columns and of at least two rows of the matrix.
    Type: Application
    Filed: May 30, 2008
    Publication date: April 2, 2009
    Applicant: STMicroelectronics SA
    Inventors: Richard Ferrant, Franck Genevaux, David Burnett, Gerald Gouya, Pierre Malinge
  • Publication number: 20080251848
    Abstract: A semiconductor device is provided that includes a plurality of patterns. Each pattern includes at least one field effect transistor. Each field effect transistor includes a source region, a drain region, a channel region, and a gate region formed above the channel region. A portion of the plurality of patterns is formed in a single active area of a semiconductor substrate, where the area delimited by an isolation region. One of the source region and the drain region of each adjacent pattern are formed in said active area.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Applicant: STMicroelectronics (Crolles2) SAS
    Inventors: Bertrand Borot, Richard Ferrant
  • Publication number: 20080205114
    Abstract: There are many inventions described and illustrated herein. In a first aspect, the present invention is directed to a memory device and technique of reading data from and writing data into memory cells of the memory device. In this regard, in one embodiment of this aspect of the invention, the memory device and technique for operating that device that minimizes, reduces and/or eliminates the debilitating affects of the charge pumping phenomenon. This embodiment of the present invention employs control signals that minimize, reduce and/or eliminate transitions of the amplitudes and/or polarities. In another embodiment, the present invention is a semiconductor memory device including a memory array comprising a plurality of semiconductor dynamic random access memory cells arranged in a matrix of rows and columns.
    Type: Application
    Filed: April 8, 2008
    Publication date: August 28, 2008
    Inventors: Richard Ferrant, Serguei Okhonin, Eric Carman, Michel Bron
  • Patent number: 7359229
    Abstract: There are many inventions described and illustrated herein. In a first aspect, the present invention is directed to a memory device and technique of reading data from and writing data into memory cells of the memory device. In this regard, in one embodiment of this aspect of the invention, the memory device and technique for operating that device that minimizes, reduces and/or eliminates the debilitating affects of the charge pumping phenomenon. This embodiment of the present invention employs control signals that minimize, reduce and/or eliminate transitions of the amplitudes and/or polarities. In another embodiment, the present invention is a semiconductor memory device including a memory array comprising a plurality of semiconductor dynamic random access memory cells arranged in a matrix of rows and columns.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: April 15, 2008
    Assignee: Innovative Silicon S.A.
    Inventors: Richard Ferrant, Serguei Okhonin, Eric Carman, Michel Bron
  • Publication number: 20070159911
    Abstract: There are many inventions described and illustrated herein. In a first aspect, the present invention is directed to a memory device and technique of reading data from and writing data into memory cells of the memory device. In this regard, in one embodiment of this aspect of the invention, the memory device and technique for operating that device that minimizes, reduces and/or eliminates the debilitating affects of the charge pumping phenomenon. This embodiment of the present invention employs control signals that minimize, reduce and/or eliminate transitions of the amplitudes and/or polarities. In another embodiment, the present invention is a semiconductor memory device including a memory array comprising a plurality of semiconductor dynamic random access memory cells arranged in a matrix of rows and columns.
    Type: Application
    Filed: March 2, 2007
    Publication date: July 12, 2007
    Inventors: Richard Ferrant, Serguei Okhonin, Eric Carman, Michel Bron
  • Patent number: 7212432
    Abstract: A resistive memory cell random access memory device and method for fabrication.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: May 1, 2007
    Assignees: Infineon Technologies AG, Altis Semiconductor
    Inventors: Richard Ferrant, Daniel Braun
  • Patent number: 7200032
    Abstract: A magnetic memory element comprising a magnetic storage element having at least one magnetic layer made of a magnetic material and being vertically oriented relative to a wafer surface on which the magnetic memory element is formed, the magnetic layer having a magnetic anisotropy with its magnetization vector being magnetically coupled to at least one current line, and a magnetic sensor element for sensing the magnetization of the at least one magnetic layer of the magnetic storage element comprising at least one magnetic layer having a magnetization vector being magnetically coupled to the magnetization vector of the at least one magnetic layer of the magnetic storage element, the magnetic sensor element being conductively coupled to the at least one current line.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 3, 2007
    Assignees: Infineon Technologies AG, Altis Semiconductor
    Inventors: Daniel Braun, Richard Ferrant
  • Publication number: 20070069296
    Abstract: A cell design and methods for reducing the cell size of cells in high-current devices, such as MRAM, by increasing the effective width of a transistor in the cell to be greater than the actual width of the active area of the cell are described. This permits the cell size to be decreased without decreasing the current that is driven by the transistor. According to the invention, this is achieved by increasing the length of gate portions of one or more transistors within the active area of a cell to increase the effective transistor width. In one embodiment, two transistors, electrically connected in parallel, are used per cell. The two transistors double the effective transistor width within the cell relative to a single transistor design. Such cell designs can be used with a variety of devices, including various types of MRAM and PCRAM.
    Type: Application
    Filed: March 6, 2006
    Publication date: March 29, 2007
    Inventors: Human Park, Rainer Leuschner, Ulrich Klostermann, Richard Ferrant
  • Patent number: 7187581
    Abstract: There are many inventions described and illustrated herein. In a first aspect, the present invention is directed to a memory device and technique of reading data from and writing data into memory cells of the memory device. In this regard, in one embodiment of this aspect of the invention, the memory device and technique for operating that device that minimizes, reduces and/or eliminates the debilitating affects of the charge pumping phenomenon. This embodiment of the present invention employs control signals that minimize, reduce and/or eliminate transitions of the amplitudes and/or polarities. In another embodiment, the present invention is a semiconductor memory device including a memory array comprising a plurality of semiconductor dynamic random access memory cells arranged in a matrix of rows and columns.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: March 6, 2007
    Assignee: Innovative Silicon S.A.
    Inventors: Richard Ferrant, Serguei Okhonin, Eric Carman, Michel Bron
  • Patent number: 7180801
    Abstract: An integrated circuit memory including at least two banks each provided with an array of storage elements having at least one redundancy column and each associated with specific sense amplifiers, a row of input/output buffer circuits common to the memory banks, and for each memory bank, a circuit for assigning the redundancy column to an input/output line connected to one of said buffers. The assigning can be performed, for a line of current rank, towards the columns of preceding rank and towards the columns of following rank.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: February 20, 2007
    Assignee: STMicroelectronics S.A.
    Inventors: Richard Ferrant, François Jacquet, Laurent Murillo
  • Patent number: 7180160
    Abstract: A MRAM storage device comprises a substrate, on/above of which a plurality of word lines, a plurality of bit lines, a plurality of memory cells, and a plurality of isolation diodes are provided. Each memory cell forms a resistive cross point of one word line and one bit line, respectively. Each memory cell is connected to one isolation diode such that a unidirectional conductive path is formed from a word line to a bit line via the corresponding memory cell, respectively. The substrate, at least a part of the word lines or at least a part of the bit lines, and the isolation diodes are realized as one common monocrystal semiconductor block.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: February 20, 2007
    Assignees: Infineon Technologies AG, Altis Semiconductor
    Inventors: Richard Ferrant, Daniel Braun, Pascal Louis
  • Patent number: 7161863
    Abstract: A DRAM including an array of storage elements arranged in lines and columns, and for each column: write means adapted to biasing at least a selected one of the elements to a charge level chosen from among a first predetermined high level and a second predetermined low level, combined with read circuitry adapted to determining whether the stored charge level is greater or smaller than a predetermined charge level; and isolation circuitry adapted to isolating the array from the read and/or write means, each column further including refreshment means, distinct from the read and write circuit, for increasing, beyond the first and second predetermined levels, the charge stored in a storage element.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: January 9, 2007
    Assignee: STMicroelectronics S.A.
    Inventors: Richard Ferrant, François Jacquet