Patents by Inventor Wolfgang Buchholtz

Wolfgang Buchholtz 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: 20160141393
    Abstract: A method includes forming a plurality of fins in a semiconductor substrate using a common patterning process. A conductive layer is formed above the plurality of fins. A mask is formed above the conductive layer. The conductive layer is etched using the mask to define trenches in the conductive layer. A first insulating layer is formed above the conductive layer and in the trenches. First and second contacts are formed connected to respective ends of the conductive layer.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Inventors: Jan Hoentschel, Stefan Flachowsky, Andreas Kurz, Sven Beyer, Wolfgang Buchholtz
  • Publication number: 20150333057
    Abstract: The present disclosure relates to a semiconductor structure comprising a resistor, at least part of the resistor forming a meandering shape in a vertical direction with respect to a substrate of the semiconductor structure. The disclosure further relates to a semiconductor manufacturing process comprising a step for realizing at least one first fin, and a step for realizing a resistor comprising a meandering shape in a vertical direction based on the at least one first fin.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 19, 2015
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Jan Hoentschel, Stefan Flachowsky, Andreas Kurz, Sven Beyer, Wolfgang Buchholtz
  • Patent number: 9006906
    Abstract: A capacitor is formed in nano channels in a conductive body. Embodiments include forming a source contact through a first inter layer dielectric (ILD), forming a conductive body on the first ILD, forming a second ILD on the conductive body, forming drain and gate contacts through the second ILD, conductive body, and first ILD, forming nano channels in the conductive body, forming an insulating layer in the channels, and metalizing the channels. An embodiment includes forming the nano channels by forming a mask on the second ILD, the mask having features with a pitch of 50 nanometers (nm) to 100 nm, etching the second ILD through the mask, etching the conductive body through the mask to a depth of 80% to 90% of the thickness of the conductive body, and removing the mask.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: April 14, 2015
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Dmytro Chumakov, Wolfgang Buchholtz, Petra Hetzer
  • Publication number: 20140299929
    Abstract: A capacitor is formed in nano channels in a conductive body. Embodiments include forming a source contact through a first inter layer dielectric (ILD), forming a conductive body on the first ILD, forming a second ILD on the conductive body, forming drain and gate contacts through the second ILD, conductive body, and first ILD, forming nano channels in the conductive body, forming an insulating layer in the channels, and metalizing the channels. An embodiment includes forming the nano channels by forming a mask on the second ILD, the mask having features with a pitch of 50 nanometers (nm) to 100 nm, etching the second ILD through the mask, etching the conductive body through the mask to a depth of 80% to 90% of the thickness of the conductive body, and removing the mask.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Inventors: Dmytro CHUMAKOV, Wolfgang BUCHHOLTZ, Petra HETZER
  • Patent number: 8785271
    Abstract: A capacitor is formed in nano channels in a conductive body. Embodiments include forming a source contact through a first inter layer dielectric (ILD), forming a conductive body on the first ILD, forming a second ILD on the conductive body, forming drain and gate contacts through the second ILD, conductive body, and first ILD, forming nano channels in the conductive body, forming an insulating layer in the channels, and metalizing the channels. An embodiment includes forming the nano channels by forming a mask on the second ILD, the mask having features with a pitch of 50 nanometers (nm) to 100 nm, etching the second ILD through the mask, etching the conductive body through the mask to a depth of 80% to 90% of the thickness of the conductive body, and removing the mask.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: July 22, 2014
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: Dmytro Chumakov, Wolfgang Buchholtz, Petra Hetzer
  • Publication number: 20120193807
    Abstract: A capacitor is formed in nano channels in a conductive body. Embodiments include forming a source contact through a first inter layer dielectric (ILD), forming a conductive body on the first ILD, forming a second ILD on the conductive body, forming drain and gate contacts through the second ILD, conductive body, and first ILD, forming nano channels in the conductive body, forming an insulating layer in the channels, and metalizing the channels. An embodiment includes forming the nano channels by forming a mask on the second ILD, the mask having features with a pitch of 50 nanometers (nm) to 100 nm, etching the second ILD through the mask, etching the conductive body through the mask to a depth of 80% to 90% of the thickness of the conductive body, and removing the mask.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 2, 2012
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Dmytro Chumakov, Wolfgang Buchholtz, Petra Hetzer
  • Patent number: 8039335
    Abstract: By forming a substantially continuous and uniform semiconductor alloy in one active region while patterning the semiconductor alloy in a second active region so as to provide a base semiconductor material in a central portion thereof, different types of strain may be induced, while, after providing a corresponding cover layer of the base semiconductor material, well-established process techniques for forming the gate dielectric may be used. In some illustrative embodiments, a substantially self-aligned process is provided in which the gate electrode may be formed on the basis of layer, which has also been used for defining the central portion of the base semiconductor material of one of the active regions. Hence, by using a single semiconductor alloy, the performance of transistors of different conductivity types may be individually enhanced.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: October 18, 2011
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Sven Beyer, Manfred Horstmann, Patrick Press, Wolfgang Buchholtz
  • Publication number: 20110104878
    Abstract: By forming a substantially continuous and uniform semiconductor alloy in one active region while patterning the semiconductor alloy in a second active region so as to provide a base semiconductor material in a central portion thereof, different types of strain may be induced, while, after providing a corresponding cover layer of the base semiconductor material, well-established process techniques for forming the gate dielectric may be used. In some illustrative embodiments, a substantially self-aligned process is provided in which the gate electrode may be formed on the basis of layer, which has also been used for defining the central portion of the base semiconductor material of one of the active regions. Hence, by using a single semiconductor alloy, the performance of transistors of different conductivity types may be individually enhanced.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 5, 2011
    Inventors: Sven Beyer, Manfred Horstmann, Patrick Press, Wolfgang Buchholtz
  • Patent number: 7893503
    Abstract: By forming a substantially continuous and uniform semiconductor alloy in one active region while patterning the semiconductor alloy in a second active region so as to provide a base semiconductor material in a central portion thereof, different types of strain may be induced, while, after providing a corresponding cover layer of the base semiconductor material, well-established process techniques for forming the gate dielectric may be used. In some illustrative embodiments, a substantially self-aligned process is provided in which the gate electrode may be formed on the basis of layer, which has also been used for defining the central portion of the base semiconductor material of one of the active regions. Hence, by using a single semiconductor alloy, the performance of transistors of different conductivity types may be individually enhanced.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: February 22, 2011
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Sven Beyer, Manfred Horstmann, Patrick Press, Wolfgang Buchholtz
  • Publication number: 20100243903
    Abstract: During the processing of complex semiconductor devices, dielectric material systems comprising a patterned structure may be analyzed in a non-destructive manner by using an FTIR technique in combination with a plurality of angles of incidence. In this manner, topography-related information may be obtained and/or data analysis may be made more efficient due to the increased amount of information obtained by the plurality of angles of incidence.
    Type: Application
    Filed: March 22, 2010
    Publication date: September 30, 2010
    Inventors: Torsten Fahr, Matthias Schaller, Wolfgang Buchholtz
  • Publication number: 20100187635
    Abstract: By forming a substantially continuous and uniform semiconductor alloy in one active region while patterning the semiconductor alloy in a second active region so as to provide a base semiconductor material in a central portion thereof, different types of strain may be induced, while, after providing a corresponding cover layer of the base semiconductor material, well-established process techniques for forming the gate dielectric may be used. In some illustrative embodiments, a substantially self-aligned process is provided in which the gate electrode may be formed on the basis of layer, which has also been used for defining the central portion of the base semiconductor material of one of the active regions. Hence, by using a single semiconductor alloy, the performance of transistors of different conductivity types may be individually enhanced.
    Type: Application
    Filed: April 6, 2010
    Publication date: July 29, 2010
    Inventors: SVEN BEYER, Manfred Horstmann, Patrick Press, Wolfgang Buchholtz
  • Patent number: 7741167
    Abstract: By forming a substantially continuous and uniform semiconductor alloy in one active region while patterning the semiconductor alloy in a second active region so as to provide a base semiconductor material in a central portion thereof, different types of strain may be induced, while, after providing a corresponding cover layer of the base semiconductor material, well-established process techniques for forming the gate dielectric may be used. In some illustrative embodiments, a substantially self-aligned process is provided in which the gate electrode may be formed on the basis of layer, which has also been used for defining the central portion of the base semiconductor material of one of the active regions. Hence, by using a single semiconductor alloy, the performance of transistors of different conductivity types may be individually enhanced.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: June 22, 2010
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Sven Beyer, Manfred Horstmann, Patrick Press, Wolfgang Buchholtz
  • Patent number: 7494872
    Abstract: By forming an implantation mask prior to the definition of the drain and the source areas, an effective decoupling of the gate dopant concentration from that of the drain and source concentrations is achieved. Moreover, after removal of the implantation mask, the lateral dimension of the gate electrode may be defined by well-established sidewall spacer techniques, thereby providing a scaling advantage with respect to conventional approaches based on photolithography and anisotropic etching.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: February 24, 2009
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Karsten Wieczorek, Thomas Feudel, Thorsten Kammler, Wolfgang Buchholtz
  • Patent number: 7375031
    Abstract: By improving the purity of metal lines and the crystalline structure, the overall performance of metal lines, especially of highly scaled copper-based semiconductor devices, may be enhanced. The modification of the crystalline structure of the metal lines may be performed by a heat treatment generating locally restricted heating zones, which are scanned along the length direction of the metal lines, and/or a heat treatment comprising a heating step in a vacuum ambient followed by a heating step in a reducing ambient.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: May 20, 2008
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Axel Preusse, Markus Keil, Wolfgang Buchholtz, Petra Hetzer, Elvira Buchholtz
  • Publication number: 20080099794
    Abstract: By forming a substantially continuous and uniform semiconductor alloy in one active region while patterning the semiconductor alloy in a second active region so as to provide a base semiconductor material in a central portion thereof, different types of strain may be induced, while, after providing a corresponding cover layer of the base semiconductor material, well-established process techniques for forming the gate dielectric may be used. In some illustrative embodiments, a substantially self-aligned process is provided in which the gate electrode may be formed on the basis of layer, which has also been used for defining the central portion of the base semiconductor material of one of the active regions. Hence, by using a single semiconductor alloy, the performance of transistors of different conductivity types may be individually enhanced.
    Type: Application
    Filed: May 15, 2007
    Publication date: May 1, 2008
    Inventors: Sven Beyer, Manfred Horstmann, Patrick Press, Wolfgang Buchholtz
  • Patent number: 7332384
    Abstract: Different types of crystalline semiconductor regions are provided on a single substrate by forming a dielectric region within a first crystalline semiconductor region. Thereafter, a second crystalline region is positioned above the dielectric region by wafer bond techniques. In preferred embodiments, isolation structures may be formed in the first crystalline region along with the dielectric region. In particular, crystalline semiconductor regions of different crystallographic orientations may be formed, wherein a high degree of flexibility and compatibility with currently used CMOS processes is maintained.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: February 19, 2008
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Wolfgang Buchholtz, Stephan Kruegel
  • Patent number: 7316975
    Abstract: A substrate comprising a first transistor element and a second transistor element is provided. A layer of a material is deposited over the first transistor element and the second transistor element. A portion of the layer of material is modified, which may be done, e.g., by irradiating the portion with ions or performing an isotropic etching process to reduce its thickness. An etching process adapted to remove the modified portion of the layer of material more quickly than an unmodified portion of the layer located over the second transistor element is performed.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: January 8, 2008
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Markus Lenski, Wolfgang Buchholtz, Andy Wei, Michael Raab
  • Publication number: 20060246721
    Abstract: By improving the purity of metal lines and the crystalline structure, the overall performance of metal lines, especially of highly scaled copper-based semiconductor devices, may be enhanced. The modification of the crystalline structure of the metal lines may be performed by a heat treatment generating locally restricted heating zones, which are scanned along the length direction of the metal lines, and/or a heat treatment comprising a heating step in a vacuum ambient followed by a heating step in a reducing ambient.
    Type: Application
    Filed: December 2, 2005
    Publication date: November 2, 2006
    Inventors: Axel Preusse, Markus Keil, Wolfgang Buchholtz
  • Publication number: 20060223311
    Abstract: By improving the purity of metal lines and the crystalline structure, the overall performance of metal lines, especially of highly scaled copper-based semiconductor devices may be enhanced. The modification of the crystalline structure of the metal lines may be performed by a heat treatment generating locally restricted heating zones, which are scanned along the length direction of the metal lines.
    Type: Application
    Filed: November 1, 2005
    Publication date: October 5, 2006
    Inventors: Wolfgang Buchholtz, Petra Hetzer, Elvira Buchholtz
  • Publication number: 20060115988
    Abstract: A substrate comprising a first transistor element and a second transistor element is provided. A layer of a material is deposited over the first transistor element and the second transistor element. A portion of the layer of material is modified, which may be done, e.g., by irradiating the portion with ions or performing an isotropic etching process to reduce its thickness. An etching process adapted to remove the modified portion of the layer of material more quickly than an unmodified portion of the layer located over the second transistor element is performed.
    Type: Application
    Filed: July 8, 2005
    Publication date: June 1, 2006
    Inventors: Markus Lenski, Wolfgang Buchholtz, Andy Wei, Michael Raab