Patents by Inventor Klaus Schrüfer

Klaus Schrüfer 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: 9437593
    Abstract: A preferred embodiment includes a method of manufacturing a fuse element that includes forming a polysilicon layer over a semiconductor structure, doping the polysilicon layer with carbon or nitrogen, depositing a metal over the polysilicon layer; and annealing the metal and polysilicon layer to form a silicide in an upper portion of the polysilicon layer.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: September 6, 2016
    Assignee: Infineon Technologies AG
    Inventors: Jiang Yan, Henning Haffner, Frank Huebinger, Sun-Oo Kim, Richard Lindsay, Klaus Schruefer
  • Publication number: 20160118477
    Abstract: A method for fabricating a field-effect transistor with local source/drain insulation. The method includes forming and patterning a gate stack with a gate layer and a gate dielectric on a semiconductor substrate; forming source and drain depressions at the gate stack in the semiconductor substrate; forming a depression insulation layer at least in a bottom region and along the sidewalls of the source and drain depressions; and filling the at least partially insulated source and drain depressions with a filling layer for realizing source and drain regions.
    Type: Application
    Filed: December 30, 2015
    Publication date: April 28, 2016
    Inventors: Juergen Holz, Klaus Schruefer, Helmut Tews
  • Patent number: 9240462
    Abstract: A method for fabricating a field-effect transistor with local source/drain insulation. The method includes forming and patterning a gate stack with a gate layer and a gate dielectric on a semiconductor substrate; forming source and drain depressions at the gate stack in the semiconductor substrate; forming a depression insulation layer at least in a bottom region of the source and drain depressions; and filling the at least partially insulated source and drain depressions with a filling layer for realizing source and drain regions.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: January 19, 2016
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Juergen Holz, Klaus Schruefer, Helmut Tews
  • Patent number: 9219063
    Abstract: Integrated circuit arrangement comprising a field effect transistor, especially a tunnel field effect transistor. An explanation is given of, inter alia, tunnel field effect transistors having a thicker gate dielectric in comparison with other transistors on the same integrated circuit arrangement. As an alternative or in addition, said tunnel field effect transistors have gate regions at mutually remote sides of a channel forming region or an interface between the connection regions of the tunnel field effect transistor.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 22, 2015
    Assignee: Infineon Technologies AG
    Inventors: Juergen Holz, Ronald Kakoschke, Thomas Nirschl, Christian Pacha, Klaus Schruefer, Thomas Schulz, Doris Schmitt-Landsiedel
  • Patent number: 9012995
    Abstract: A memory element includes a FinFET select device and a memory element. In some embodiments a memory cell has a contact element coupled between a surface of the fin and the memory element.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: April 21, 2015
    Assignee: Infineon Technologies AG
    Inventors: Ronald Kakoschke, Klaus Schruefer
  • Patent number: 8952487
    Abstract: An electronic circuit arrangement in accordance with some embodiments has a substrate, the substrate including: a plurality of metallization layers located one above the other; a single fuse-link via coupled between a first metallization layer and a second metallization layer of the plurality of metallization layers, wherein the single fuse-link via is in the form of an electrical fuse link preferentially programmable by applying a sufficiently large current to melt or degenerate the fuse link; a plurality of through-contact vias coupled in parallel between a third metallization layer and a fourth metallization layer of the plurality of metallization layers, wherein the through-contact vias form a through-contact between the third and fourth metallization layers; and electrical circuit components, arranged in a circuit layer, which are electrically coupled to one another by means of the single fuse-link via and by means of the plurality of through-contact vias.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: February 10, 2015
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Barth, Andreas Rusch, Klaus Schruefer
  • Publication number: 20150001638
    Abstract: A preferred embodiment includes a method of manufacturing a fuse element that includes forming a polysilicon layer over a semiconductor structure, doping the polysilicon layer with carbon or nitrogen, depositing a metal over the polysilicon layer; and annealing the metal and polysilicon layer to form a silicide in an upper portion of the polysilicon layer.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventors: Jiang Yan, Henning Haffner, Frank Huebinger, Sun-Oo Kim, Richard Lindsay, Klaus Schruefer
  • Patent number: 8865592
    Abstract: A preferred embodiment includes a method of manufacturing a fuse element that includes forming a polysilicon layer over a semiconductor structure, doping the polysilicon layer with carbon or nitrogen, depositing a metal over the polysilicon layer; and annealing the metal and polysilicon layer to form a silicide in an upper portion of the polysilicon layer.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: October 21, 2014
    Assignee: Infineon Technologies AG
    Inventors: Jiang Yan, Henning Haffner, Frank Huebinger, SunOo Kim, Richard Lindsay, Klaus Schruefer
  • Publication number: 20140167215
    Abstract: An electronic circuit arrangement in accordance with some embodiments has a substrate, the substrate including: a plurality of metallization layers located one above the other; a single fuse-link via coupled between a first metallization layer and a second metallization layer of the plurality of metallization layers, wherein the single fuse-link via is in the form of an electrical fuse link preferentially programmable by applying a sufficiently large current to melt or degenerate the fuse link; a plurality of through-contact vias coupled in parallel between a third metallization layer and a fourth metallization layer of the plurality of metallization layers, wherein the through-contact vias form a through-contact between the third and fourth metallization layers; and electrical circuit components, arranged in a circuit layer, which are electrically coupled to one another by means of the single fuse-link via and by means of the plurality of through-contact vias.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 19, 2014
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Hans-Joachim Barth, Andreas Rusch, Klaus Schruefer
  • Publication number: 20140124827
    Abstract: Integrated circuit arrangement comprising a field effect transistor, especially a tunnel field effect transistor. An explanation is given of, inter alia, tunnel field effect transistors having a thicker gate dielectric in comparison with other transistors on the same integrated circuit arrangement. As an alternative or in addition, said tunnel field effect transistors have gate regions at mutually remote sides of a channel forming region or an interface between the connection regions of the tunnel field effect transistor.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: Infineon Technologies AG
    Inventors: Juergen Holz, Ronald Kakoschke, Thomas Nirschl, Christian Pacha, Klaus Schruefer, Thomas Schulz, Doris Schmitt-Landsiedel
  • Patent number: 8698275
    Abstract: An electronic circuit arrangement has a substrate which has at least one metallization layer. At least one electrical interconnect and/or at least one via are formed in the metallization layer such that the electrical interconnect and the via are in the form of an electrical fuse link. In addition, the substrate has electrical circuit components which are arranged in the circuit layer. The circuit components are electrically coupled to one another by means of the electrical interconnect and by means of a plurality of vias.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 15, 2014
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Barth, Andreas Rusch, Klaus Schrüfer
  • Publication number: 20140077146
    Abstract: A memory element includes a FinFET select device and a memory element. In some embodiments a memory cell has a contact element coupled between a surface of the fin and the memory element.
    Type: Application
    Filed: October 7, 2013
    Publication date: March 20, 2014
    Inventors: Ronald KAKOSCHKE, Klaus SCHRUEFER
  • Patent number: 8629500
    Abstract: An explanation is given of, inter alia, tunnel field effect transistors having a thicker gate dielectric (GD1) in comparison with other transistors (T2) on the same integrated circuit arrangement (10). As an alternative or in addition, said tunnel field effect transistors have gate regions at mutually remote sides of a channel forming region or an interface between the connection regions (D1, S1) of the tunnel field effect transistor.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: January 14, 2014
    Assignee: Infineon Technologies AG
    Inventors: Juergen Holz, Ronald Kakoschke, Thomas Nirschl, Christian Pacha, Klaus Schruefer, Thomas Schulz, Doris Schmitt-Landsiedel
  • Patent number: 8552475
    Abstract: One or more embodiments relate to a memory device, comprising: a memory element; and a FinFET select device including a fin, a gate line supported by the fin, and a contact element coupled between a surface of the fin and the memory element, the contact element being in direct contact with a top surface of the fin.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: October 8, 2013
    Assignee: Infineon Technologies AG
    Inventors: Ronald Kakoschke, Klaus Schruefer
  • Patent number: 8389357
    Abstract: A method of fabricating a memory device in a semiconductor substrate, the device having a memory array having a plurality of memory cell transistors arranged in rows and columns. The method includes forming a plurality of tunneling field effect transistors, forming a first well of the second doping type, forming a second well of the first doping type surrounding the first well, forming a first word line connected to a first row of memory cell transistors, forming a first bit line to control a voltage of doped drain regions of tunneling field effect transistors of a first column of memory cell transistors, and forming a second bit line parallel to the first bit line.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: March 5, 2013
    Assignee: Infineon Technologies AG
    Inventors: Ronald Kakoschke, Thomas Nirschl, Danny Shum, Klaus Schrüfer
  • Publication number: 20130009215
    Abstract: Some embodiments relate to an apparatus that exhibits vertical diode activity to occur between a semiconductive body and an epitaxial film that is disposed over a doping region of the semiconductive body. Some embodiments include an apparatus that causes both vertical and lateral diode activity. Some embodiments include a gated vertical diode for a finned semiconductor apparatus. Process embodiments include the formation of vertical-diode apparatus.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: Infineon Technologies AG
    Inventors: Christian Russ, Christian Pacha, Snezana Jenei, Klaus Schruefer
  • Patent number: 8318553
    Abstract: Some embodiments relate to an apparatus that exhibits vertical diode activity to occur between a semiconductive body and an epitaxial film that is disposed over a doping region of the semiconductive body. Some embodiments include an apparatus that causes both vertical and lateral diode activity. Some embodiments include a gated vertical diode for a finned semiconductor apparatus. Process embodiments include the formation of vertical-diode apparatus.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: November 27, 2012
    Assignee: Infineon Technologies AG
    Inventors: Christian Russ, Christian Pacha, Snezana Jenei, Klaus Schruefer
  • Patent number: 8310027
    Abstract: Embodiments relate to a bipolar transistor that includes a body region having a fin structure. At least one terminal region may be formed over at least a portion of the body region. The at least one terminal region may be formed as an epitaxially grown region. Embodiments also relate to a vertically integrated electronic device that includes a first terminal region, a second terminal region and a third terminal region. The second terminal region may be arranged over at least a portion of the third terminal region, and at least two of the first, second and third terminal regions may be formed as epitaxially grown regions.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: November 13, 2012
    Assignee: Infineon Technologies AG
    Inventors: Christian Russ, Christian Pacha, Snezana Jenei, Klaus Schruefer
  • Patent number: 8288813
    Abstract: A memory device using tunneling field effect transistors (TFET) and buried bit lines is presented. The memory device includes a matrix containing rows and columns of storage cells. Each storage cell contains at least one cell transistor, which in turn contains first doped regions and second doped regions, one of which is a source and the other a drain. The memory device includes word lines, each of which is connected to storage cells of one row and bit lines, each of which is connected to storage cells of one column. The first doped regions are of a different doping type than the second doped regions.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: October 16, 2012
    Assignee: Infineon Technologies AG
    Inventors: Ronald Kakoschke, Thomas Nirschl, Danny Shum, Klaus Schrüfer
  • Patent number: 8183120
    Abstract: One or more embodiments relate to a method, comprising forming an implant on a substrate surface; selectively etching the wafer surface to form an elongated fin including portion of the implant; forming collector/emitter regions adjacent opposing ends of the fin; and forming a base region intermediate the collector/emitter regions.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: May 22, 2012
    Assignee: Infineon Technologies AG
    Inventors: Ronald Kakoschke, Klaus Schruefer