Patents Assigned to Qimonda AG
  • Patent number: 8389973
    Abstract: A memory includes a first tunneling field effect transistor including a first drain and a first source, the first drain coupled to a first resistive memory element. The memory includes a second tunneling field effect transistor including a second drain and sharing the first source, the second drain coupled to a second resistive memory element. The memory includes a first region coupled to the first source for providing a source node.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: March 5, 2013
    Assignee: Qimonda AG
    Inventor: Thomas Nirschl
  • Patent number: 8384062
    Abstract: A memory includes a first vertical bipolar select device including a first base and a first emitter, a first phase change element coupled to the first emitter, a second vertical bipolar select device including a second base and a second emitter, a second phase change element coupled to the second emitter, and a buried word line contacting the first base and the second base.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: February 26, 2013
    Assignee: Qimonda AG
    Inventors: Thomas Happ, Jan Boris Philipp
  • Patent number: 8362537
    Abstract: One embodiment relates to an integrated circuit that includes a memory array of pillars arranged in rows and columns. The pillars are separated from one another by row trenches and column trenches. The column trenches include a pair of parallel column trenches. A first trench of the pair includes two parallel bit lines coupled to pillars adjacent to the first trench. A second trench of the pair is free of bit lines. Other methods, devices, and systems are also disclosed.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: January 29, 2013
    Assignee: Qimonda AG
    Inventors: Gerhard Kunkel, Peter Baars
  • Patent number: 8351496
    Abstract: An integrated circuit having a filter apparatus for filtering a first symbol sequence is disclosed. The first symbol sequence has a predetermined symbol duration. The apparatus includes at least one delay device which is clocked in accordance with a clock, and configured to delay the first symbol sequence by a delay time. A relationship between the delay time of the delay device and a clock duration of the clocked delay device has a predetermined value which is not equal to the one.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: January 8, 2013
    Assignee: Qimonda AG
    Inventors: Daniel Kehrer, Franz Weiss
  • Patent number: 8350364
    Abstract: An electronic component includes a semiconductor chip with an active front face and a passive rear face, with contact connections and contact surfaces respectively being provided on the active front face and/or on the passive rear face, and with conductive connections being provided in the form of structured conductive tracks for providing an electrical connection from the active front face to the passive rear face. An electronic assembly formed of stacked semiconductor chips, and a method for producing the electronic component and the electronic assembly are also provided.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: January 8, 2013
    Assignee: Qimonda AG
    Inventors: Harry Hedler, Ingo Wennemuth
  • Patent number: 8344438
    Abstract: The present invention refers to an electrode comprising a first metallic layer and a compound comprising at least one of a nitride, oxide, and oxynitride of a second metallic material.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: January 1, 2013
    Assignee: Qimonda AG
    Inventors: Uwe Schroeder, Stefan Jakschik, Johannes Heitmann, Tim Boescke, Annette Saenger
  • Patent number: 8334599
    Abstract: An electronic device provides a stack of semiconductor chips. A redistribution layer of a first semiconductor chip is arranged at the bottom of the stack. The redistribution layer of the first semiconductor chip comprises external pads.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: December 18, 2012
    Assignee: Qimonda AG
    Inventors: Michael Bruennert, Ullrich Menczigar, Christian Mueller, Sitt Tontosirin, Hermann Ruckerbauer
  • Patent number: 8310866
    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: Grant
    Filed: July 7, 2008
    Date of Patent: November 13, 2012
    Assignees: Qimonda AG, ALTIS Semiconductor, SNC
    Inventors: Rainer Leuschner, Ulrich Klostermann, Richard Ferrant
  • Patent number: 8305793
    Abstract: An integrated circuit includes an array of resistance changing memory cells, and a circuit configured to apply an initialization signal to a first one of the memory cells that is in a virgin resistance state. The initialization signal is configured to modify the first memory cell without switching an operation state of the first memory cell.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: November 6, 2012
    Assignee: Qimonda AG
    Inventors: Petra Majewski, Jan Boris Philipp
  • Patent number: 8305834
    Abstract: A semiconductor memory including a plurality of memory banks disposed on an integrated circuit, each memory bank including an array of memory cells, wherein a first portion of memory cells of the plurality of memory banks has a first access speed and a second portion of memory cells of the plurality of memory banks has a second access speed, wherein the first access speed is different from the second access speed.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: November 6, 2012
    Assignee: Qimonda AG
    Inventors: Michael Richter, Markus Balb, Christoph Bilger, Martin Brox, Peter Gregorius, Thomas Hein, Andreas Schneider
  • Patent number: 8294188
    Abstract: An integrated circuit including a memory cell array comprises active area lines, bitlines, the bitlines being arranged so that an individual one intersects a plurality of the active area lines to form bitline-contacts, respectively, the bitlines being arranged at a bitline pitch, wordlines being arranged so that an individual one of the wordlines intersects a plurality of the active area lines, and an individual one of the wordlines intersects a plurality of the bitlines, the wordlines being arranged at a wordline pitch, wherein neighboring bitline-contacts, each of which is connected to one of the active area lines, are connected with different bitlines, and the bitline pitch is different from the wordline pitch.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: October 23, 2012
    Assignee: Qimonda AG
    Inventors: Martin Popp, Till Schloesser
  • Patent number: 8291253
    Abstract: An interface device allows data communication between a controller and a plurality of circuit units. The interface device has a first interface for a connection to the controller, a second interface for a connection to a second circuit unit, and a third interface for a connection to a second circuit unit. An interface calibrating unit is coupled to the second and third interfaces and a non-volatile calibrating parameter memory is arranged in the interface calibrating unit or coupled to the calibrating unit. The memory is adapted to store calibrating parameters for the second and third interfaces.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: October 16, 2012
    Assignee: Qimonda AG
    Inventors: Christian Mueller, Maurizio Skerlj
  • Patent number: 8284596
    Abstract: An integrated circuit includes an array of diodes and an electrode coupled to each diode. The integrated circuit includes a layer of resistance changing material coupled to the electrodes and bit lines coupled to the layer of resistance changing material. The layer of resistance changing material provides a resistance changing element at each intersection of each electrode and each bit line.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: October 9, 2012
    Assignee: Qimonda AG
    Inventors: Igor Kasko, Thomas Happ, Andreas Walter, Stefan Tegen, Peter Baars, Klaus Muemmler
  • Patent number: 8258564
    Abstract: An integrated circuit is described. The integrated circuit may comprise a multitude of floating-gate electrodes, wherein at least one of the floating-gate electrodes has a lower width and an upper width, the lower width being larger than the upper width, and wherein the at least one of the floating-gate electrodes comprises a transition metal. A corresponding manufacturing method for an integrated circuit is also described.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: September 4, 2012
    Assignee: Qimonda AG
    Inventors: Josef Willer, Franz Hofmann, Michael Specht, Christoph Friederich, Doris Keitel-Schulz, Lars Bach, Thomas Melde
  • Patent number: 8254166
    Abstract: An integrated circuit includes an array of memory cells. Each memory cell includes a diode. The integrated circuit includes a doped semiconductor line formed in a semiconductor substrate. The doped semiconductor line is coupled to a row of diodes. The integrated circuit includes conductive cladding contacting the doped semiconductor line.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: August 28, 2012
    Assignee: Qimonda AG
    Inventors: Ulrich Klosterman, Ulrike Gruening-von Schwerin, Franz Kreupl
  • Patent number: 8250436
    Abstract: A memory arrangement comprises a first memory module and a second memory module. An item of information to be written to the memory arrangement is written with a first address both to the first memory module and to the second memory module. When reading, the item of information is read either from the first memory module by means of the first address or from the second memory module by means of a second address differing from the first address. Subsequently a check is made as to whether the item of information is defective. If this is the case, the item of information is read from the respective other memory module.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: August 21, 2012
    Assignee: Qimonda AG
    Inventors: Torsten Hinz, Gerhard Risse
  • Patent number: 8250293
    Abstract: According to one embodiment of the present invention, a method of operating an integrated circuit including a plurality of resistance changing memory cells grouped into physical memory units is provided. The method includes: Monitoring writing access numbers assigned to the physical memory units, each writing access number reflecting the number of writing accesses to the physical memory unit to which the writing access number is assigned; if the value of a writing access number assigned to a first physical memory unit exceeds a writing access threshold value, a data exchange process is carried out during which the data content stored within the first physical memory unit is exchanged with the data content of a second physical memory unit having a writing access number of a lower value.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: August 21, 2012
    Assignee: Qimonda AG
    Inventors: Thomas Happ, Jan Boris Philipp
  • Patent number: 8243516
    Abstract: A NAND-type flash memory device is described. In some embodiments, the memory device includes NAND-type flash memory cells, and a synchronous NAND interface. The synchronous NAND interface includes a standard NAND flash interface pin arrangement and a clock (CLK) pin. The synchronous NAND interface is configured to interface with a NOR-compatible memory interface.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: August 14, 2012
    Assignee: Qimonda AG
    Inventors: Marco Redaelli, Oreste Bernardi
  • Patent number: 8241989
    Abstract: An integrated circuit with stacked devices. One embodiment provides a surface of a first semiconductor structure of a first crystalline semiconductor material including first and second portions. First structures are formed on the first portions. The second portions remain uncovered. Sacrificial structures of a second, different crystalline material are formed on the second portions. A second semiconductor structure of the first crystalline semiconductor material is formed over the sacrificial structures and over the first structures.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 14, 2012
    Assignee: Qimonda AG
    Inventor: Franz Hofmann
  • Patent number: 8238101
    Abstract: The memory module comprises a circuit board with a first and a second side, wherein memory chips are arranged at least on the first side. A longitudinally extending module heat conductor is arranged on the first side. The module heat conductor comprises a contact surface configured to contact a heat transfer system.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: August 7, 2012
    Assignee: Qimonda AG
    Inventors: Sven Kalms, Christian Weiss