Patents by Inventor Josef Willer

Josef Willer 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).

  • 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: 7940575
    Abstract: In an embodiment, a method for transferring data in a memory device is provided. The method may include transferring data from a first memory cell arrangement including a plurality of memory cells to a second memory cell arrangement including a plurality of memory cells via a connecting circuit arrangement coupled to the plurality of memory cell arrangements and providing a plurality of controllable connections via a plurality of connecting circuit terminals, the memory cell arrangements being connected with at least one connecting circuit terminal of the plurality of connecting circuit terminals, wherein the connecting circuit is configured to provide arbitrarily controllable signal flow connections between the plurality of connecting circuit terminals. The data are transferred via a logic connection using the controllable connections. Simultaneously, a further logic connection may be provided to a memory cell arrangement of the memory cell arrangements using the controllable connections.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: May 10, 2011
    Assignee: QIMONDA AG
    Inventors: Roberto Ravasio, Andreas Kux, Detlev Richter, Girolamo Gallo, Josef Willer, Ramirez Xavier Veredas
  • Patent number: 7875516
    Abstract: An integrated circuit including a first gate stack and a second gate stack and a method of manufacturing is disclosed. One embodiment provides non-volatile memory cells including a first gate stack and a gate dielectric on a first surface section of a main surface of a semiconductor substrate, and a second gate stack including a memory layer stack on a second surface section. A first pattern is transferred into the first gate stack and a second pattern into the second gate stack.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: January 25, 2011
    Assignee: Qimonda AG
    Inventors: Roman Knoefler, Michael Specht, Josef Willer
  • Patent number: 7868415
    Abstract: An integrated circuit is described. The integrated circuit may have: an active area line formed of a material of a semiconductor substrate with a first longitudinal direction parallel to an upper surface of the semiconductor substrate; wherein the active area line has at least one form-supporting element extending in a second longitudinal direction parallel to the upper surface of the semiconductor substrate; and wherein the second longitudinal direction is arranged with regard to the first longitudinal direction in an angle unequal to 0 degree and unequal to 180 degree.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: January 11, 2011
    Assignee: Qimonda AG
    Inventors: Josef Willer, Michael Specht, Christoph Friederich, Doris Keitel-Schulz
  • Patent number: 7838921
    Abstract: A memory cell arrangement includes a first memory cell string having a plurality of serially source-to-drain-coupled transistors, at least some of them being memory cells, a second memory cell string having a plurality of serially source-to-drain-coupled transistors, at least some of them being memory cells. A dielectric material is between and above the first memory cell string and the second memory cell string. A source/drain line groove is defined in the dielectric material. The source/drain line groove extends from a source/drain region of one transistor of the first memory cell string to a source/drain region of the second memory cell string. Electrically conductive filling material is disposed in the source/drain line groove. Dielectric filling material is disposed in the source/drain line groove between the source/drain regions.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: November 23, 2010
    Assignee: Qimonda AG
    Inventors: Josef Willer, Thomas Mikolajick, Nicolas Nagel, Michael Specht
  • Patent number: 7796449
    Abstract: An integrated circuit having a memory cell arrangement with a plurality of memory cells and a memory cell arrangement controller is provided. The memory cell arrangement controller is configured such that during programming of at least one memory cell of the plurality of memory cells, at least one memory cell, which is arranged adjacent to the memory cell to be programmed, is driven to shield the memory cell to be programmed.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: September 14, 2010
    Assignee: Qimonda AG
    Inventors: Josef Willer, Gert Koebernik
  • Patent number: 7790516
    Abstract: A method of manufacturing at least one NAND-coupled semiconductor component is disclosed. A layer structure is formed on or above a semiconductor substrate. The layer structure is patterned to expose at least one region to be doped. The exposed region is doped and annealed. The patterned layer structure is at least partially removed. Replacing material is formed in the region in which the patterned layer structure has been removed, thereby forming the at least one NAND-coupled semiconductor component.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: September 7, 2010
    Assignee: Qimonda AG
    Inventors: Josef Willer, Nicolas Nagel
  • Patent number: 7785953
    Abstract: A method for forming trenches on a surface of a semiconductor substrate is described. The method may include: etching a first plurality of trenches into the surface of the semiconductor substrate; filling the first plurality of trenches with at least one material; and etching a second plurality of trenches into every second trench of the first plurality of trenches. Furthermore, a method for forming floating-gate electrodes on a semiconductor substrate and an integrated circuit is described.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: August 31, 2010
    Assignee: Qimonda AG
    Inventors: Josef Willer, Michael Specht, Christoph Friederich, Doris Keitel-Schulz
  • Patent number: 7778073
    Abstract: Embodiments of the present invention relate generally to integrated circuits and methods for manufacturing an integrated circuit. In an embodiment of the invention, an integrated circuit having a memory cell is provided. The memory cell may include a trench in a carrier, a charge trapping layer structure in the trench, the charge trapping layer structure comprising at least two separate charge trapping regions, electrically conductive material at least partially filled in the trench, and source/drain regions next to the trench.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: August 17, 2010
    Assignee: Qimonda AG
    Inventors: Josef Willer, Franz Hofmann, Detlev Richter, Nicolas Nagel
  • Patent number: 7772580
    Abstract: In an embodiment of the invention, an integrated circuit having a cell is provided. The cell may include a field effect transistor structure which includes a gate stack and a resistivity changing material structure disposed above the gate stack, wherein the resistivity changing material structure includes a resistivity changing material which is configured to change its resistivity in response to the application of an electrical voltage to the resistivity changing material structure.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: August 10, 2010
    Assignee: Qimonda AG
    Inventors: Franz Hofmann, Josef Willer
  • Patent number: 7767567
    Abstract: Gate stacks of an array of memory cells and a plurality of select transistors are formed above a carrier, the gate stacks being separated by spacers. An opening is formed between the spacers in an area that is provided for a source line. A sacrificial layer is applied to fill the opening and is subsequently patterned. Interspaces are filled with a planarizing layer of dielectric material. The residues of the sacrificial layer are removed and an electrically conductive material is applied to form a source line.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: August 3, 2010
    Assignee: Qimonda AG
    Inventors: Josef Willer, Franz Hofmann
  • Patent number: 7741630
    Abstract: An integrated circuit including a memory cell and a method of manufacturing the integrated circuit are described. The memory cell includes a buried gate select transistor and a resistive memory element coupled to the buried gate select transistor. The resistive memory element stores information based on a resistivity of the resistive memory element.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: June 22, 2010
    Assignee: Qimonda AG
    Inventors: Klaus-Dieter Ufert, Josef Willer
  • Patent number: 7662687
    Abstract: A semiconductor memory having charge trapping memory cells and fabrication method thereof. The direction of current flow of each channel region of the memory transistors runs transversely with respect to the relevant word line, the bit lines are arranged on the top side of the word lines and in a manner electrically insulated from the latter, and electrically conductive local interconnects of source-drain regions are present, which are arranged in sections in interspaces between the word lines and in a manner electrically insulated from the latter and connected to the bit lines, wherein gate electrodes are arranged in trenches at least partly formed in the memory substrate.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: February 16, 2010
    Assignee: Infineon Technologies AG
    Inventors: Josef Willer, Thomas Mikolajick, Christoph Ludwig, Norbert Schulze, Karl Heinz Kuesters
  • Publication number: 20100019345
    Abstract: An integrated circuit is described. The integrated circuit may have: an active area line formed of a material of a semiconductor substrate with a first longitudinal direction parallel to an upper surface of the semiconductor substrate; wherein the active area line has at least one form-supporting element extending in a second longitudinal direction parallel to the upper surface of the semiconductor substrate; and wherein the second longitudinal direction is arranged with regard to the first longitudinal direction in an angle unequal to 0 degree and unequal to 180 degree.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 28, 2010
    Inventors: Josef Willer, Michael Specht, Christoph Friederich, Doris Keitel-Schulz
  • Publication number: 20090273017
    Abstract: A method for forming trenches on a surface of a semiconductor substrate is described. The method may include: etching a first plurality of trenches into the surface of the semiconductor substrate; filling the first plurality of trenches with at least one material; and etching a second plurality of trenches into every second trench of the first plurality of trenches. Furthermore, a method for forming floating-gate electrodes on a semiconductor substrate and an integrated circuit is described.
    Type: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Applicant: QIMONDA FLASH GMBH
    Inventors: Josef Willer, Michael Specht, Christoph Friederich, Doris Keitel-Schulz
  • Publication number: 20090272958
    Abstract: An integrated circuit including a memory cell and method of manufacturing the integrated circuit are described. The memory cell includes a diode and a resistive memory element coupled to the diode. The resistive memory element includes a thin oxide storage layer that uses multiple resistance levels to store more than one bit of information in the resistive memory element.
    Type: Application
    Filed: May 2, 2008
    Publication date: November 5, 2009
    Inventors: Klaus-Dieter Ufert, Josef Willer
  • Publication number: 20090261397
    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: Application
    Filed: April 17, 2008
    Publication date: October 22, 2009
    Applicants: QIMONDA FLASH GMBH, QIMONDA AG
    Inventors: Josef Willer, Franz Hofmann, Michael Specht, Christoph Friederich, Doris Keitel-Schulz, Lars Bach, Thomas Melde
  • Patent number: 7602649
    Abstract: In an embodiment of the invention, a method of operating an integrated circuit for reading the logical state of a selected one of a plurality of memory cells included within a memory cell string in the integrated circuit is provided.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: October 13, 2009
    Assignees: Qimonda AG, Qimonda Flash GmbH
    Inventors: Josef Willer, Detlev Richter
  • Publication number: 20090251968
    Abstract: In an embodiment, an integrated circuit may include a metallically conductive structure, a base structure having a crystal orientation, the base structure being adjacent to the metallically conductive structure, and a nanostructure disposed on the base structure, the nanostructure having substantially the same crystal orientation as the base structure.
    Type: Application
    Filed: April 8, 2008
    Publication date: October 8, 2009
    Inventors: Christoph Andreas Kleint, Josef Willer
  • Publication number: 20090244949
    Abstract: In an embodiment, a method for transferring data in a memory device is provided. The method may include transferring data from a first memory cell arrangement including a plurality of memory cells to a second memory cell arrangement including a plurality of memory cells via a connecting circuit arrangement coupled to the plurality of memory cell arrangements and providing a plurality of controllable connections via a plurality of connecting circuit terminals, the memory cell arrangements being connected with at least one connecting circuit terminal of the plurality of connecting circuit terminals, wherein the connecting circuit is configured to provide arbitrarily controllable signal flow connections between the plurality of connecting circuit terminals. The data are transferred via a logic connection using the controllable connections. Simultaneously, a further logic connection may be provided to a memory cell arrangement of the memory cell arrangements using the controllable connections.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventors: Roberto Ravasio, Andreas Kux, Detlev Richter, Girolamo Gallo, Josef Willer, Ramirez Xavier Veredas