Patents by Inventor Richard Q. Williams

Richard Q. Williams 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: 8835261
    Abstract: The disclosure relates generally to a metal-oxide-semiconductor field effect transistor (MOSFET) structures and methods of forming the same. The MOSFET structure includes at least one semiconductor body on a substrate; a dielectric cap on a top surface of the at least one semiconductor body, wherein a width of the at least one semiconductor body is less than a width of the dielectric cap; a gate dielectric layer conformally coating the at least one semiconductor body; and at least one electrically conductive gate on the gate dielectric layer.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: September 16, 2014
    Assignee: International Business Machines Corporation
    Inventors: Edward J. Nowak, Richard Q. Williams
  • Patent number: 8806419
    Abstract: A method for modeling FinFET width quantization is described. The method includes fitting a FinFET model of a FinFET device to single fin current/voltage characteristics. The FinFET device comprises a plurality of fins. The method includes obtaining statistical data of at least one sample FinFET device. The statistical data includes DIBL data and SS data. The method also includes fitting the FinFET model to a variation in a current to turn off the finFETs device (IOFF) in the statistical data using the DIBL data and the SS data and determining a model for a voltage to turn off the finFETs device (VOFF). The method also includes fitting the FinFET model to the VOFF.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: August 12, 2014
    Assignee: International Business Machines Corporation
    Inventors: Wilfried Ernest-August Haensch, Chung-Hsun Lin, Philip J. Oldiges, Hailing Wang, Richard Q. Williams
  • Patent number: 8799848
    Abstract: A method for modeling FinFET width quantization is described. The method includes fitting a FinFET model of a FinFET device to single fin current/voltage characteristics. The FinFET device comprises a plurality of fins. The method includes obtaining statistical data of at least one sample FinFET device. The statistical data includes DIBL data and SS data. The method also includes fitting the FinFET model to a variation in a current to turn off the finFETs device (IOFF) in the statistical data using the DIBL data and the SS data and determining a model for a voltage to turn off the finFETs device (VOFF). The method also includes fitting the FinFET model to the VOFF.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: August 5, 2014
    Assignee: International Business Machines Corporation
    Inventors: Wilfried Ernest-August Haensch, Chung-Hsun Lin, Philip J. Oldiges, Hailing Wang, Richard Q. Williams
  • Publication number: 20140201699
    Abstract: A method for modeling FinFET width quantization is described. The method includes fitting a FinFET model of a FinFET device to single fin current/voltage characteristics. The FinFET device comprises a plurality of fins. The method includes obtaining statistical data of at least one sample FinFET device. The statistical data includes DIBL data and SS data. The method also includes fitting the FinFET model to a variation in a current to turn off the finFETs device (IOFF) in the statistical data using the DIBL data and the SS data and determining a model for a voltage to turn off the finFETs device (VOFF). The method also includes fitting the FinFET model to the VOFF.
    Type: Application
    Filed: January 15, 2013
    Publication date: July 17, 2014
    Applicant: International Business Machines Corporation
    Inventors: Wilfried Ernest-August HAENSCH, Chung-Hsun Lin, Philip J. Oldiges, Hailing Wang, Richard Q. Williams
  • Publication number: 20140201700
    Abstract: A method for modeling FinFET width quantization is described. The method includes fitting a FinFET model of a FinFET device to single fin current/voltage characteristics. The FinFET device comprises a plurality of fins. The method includes obtaining statistical data of at least one sample FinFET device. The statistical data includes DIBL data and SS data. The method also includes fitting the FinFET model to a variation in a current to turn off the finFETs device (IOFF) in the statistical data using the DIBL data and the SS data and determining a model for a voltage to turn off the finFETs device (VOFF). The method also includes fitting the FinFET model to the VOFF.
    Type: Application
    Filed: August 20, 2013
    Publication date: July 17, 2014
    Applicant: International Business Machines Corporation
    Inventors: Wilfried Ernest-August HAENSCH, Chung-Hsun Lin, Philip J. Oldiges, Hailing Wang, Richard Q. Williams
  • Publication number: 20140151850
    Abstract: A method and structure is directed to eDRAM cells with high-conductance electrodes. The method includes forming upper layers on a semiconductor substrate and forming an opening in the upper layers. The method further includes forming a trench in the semiconductor substrate, aligned with the opening. The method further includes forming a metal plate on all exposed surface in the trench by applying a metallic aqueous solution with an electrical bias to a backside of the semiconductor substrate.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: International Business Machines Corporation
    Inventors: Veeraraghavan S. BASKER, Richard Q. WILLIAMS
  • Patent number: 8745571
    Abstract: The disclosure relates to the analysis of compensated layout shapes. A method in accordance with an embodiment includes: analyzing a semiconductor layout using a bucket structure, the layout including a semiconductor device; and applying a pattern template to a content of the bucket structure to identify a shape adjacent to the semiconductor device; wherein the pattern template is derived from layout groundrules.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: June 3, 2014
    Assignee: International Business Machines Corporation
    Inventors: Hongmei Li, Richard Q. Williams
  • Patent number: 8703572
    Abstract: A method and structure is directed to eDRAM cells with high-conductance electrodes. The method includes forming upper layers on a semiconductor substrate and forming an opening in the upper layers. The method further includes forming a trench in the semiconductor substrate, aligned with the opening. The method further includes forming a metal plate on all exposed surface in the trench by applying a metallic aqueous solution with an electrical bias to a backside of the semiconductor substrate.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: April 22, 2014
    Assignee: International Business Machines Corporation
    Inventors: Veeraraghavan S. Basker, Richard Q. Williams
  • Publication number: 20140021548
    Abstract: Disclosed is a semiconductor-on-insulator (SOI) structure (e.g., an SOI field effect transistor (FET)) and method of forming the SOI structure so as to have sub-insulator layer void(s) selectively placed so that capacitance coupling between a first section of a semiconductor layer and the substrate will be less than capacitance coupling between a second section of the semiconductor layer and the substrate. The first section may contain a first device and the second section may contain a second device. Alternatively, the first and second sections may comprise different regions of the same device. For example, in an SOI FET, sub-insulator layer voids can be selectively placed in the substrate below the source, drain and/or body contact diffusion regions, but not below the channel region so that capacitance coupling between the these various diffusion regions and the substrate will be less than capacitance coupling between the channel region and the substrate.
    Type: Application
    Filed: September 25, 2013
    Publication date: January 23, 2014
    Applicant: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Robert R. Robison, Richard Q. Williams
  • Patent number: 8610211
    Abstract: Disclosed is a semiconductor-on-insulator (SOI) structure having sub-insulator layer void(s) selectively placed in a substrate so that capacitance coupling between a first section of a semiconductor layer and the substrate will be less than capacitance coupling between a second section of the semiconductor layer and the substrate. The first section may contain a first device on an insulator layer and the second section may contain a second device on the insulator layer. Alternatively, the first and second sections may comprise different regions of the same device on an insulator layer. For example, in an SOI field effect transistor (FET), sub-insulator layer voids can be selectively placed in the substrate below the source, drain and/or body contact diffusion regions, but not below the channel region so that capacitance coupling between the these various diffusion regions and the substrate will be less than capacitance coupling between the channel region and the substrate.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: December 17, 2013
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Robert R. Robison, Richard Q. Williams
  • Patent number: 8453100
    Abstract: A method (and computer program) identify shapes and locations of transistor elements within a geometric circuit layout. The transistor elements include an active area, at least one gate conductor and other transistor elements. Also, the gate conductor has sides running in a first direction, and has a width dimension running in a second direction perpendicular to the first direction. The method defines regions within the geometric circuit layout. To do so, the method defines a first region having a perimeter positioned along the sides of the gate conductor where the gate conductor intersects the active area and then expands the perimeter of the first region in the second direction to edges of the active area to define a perimeter of a second region. The first region and the second share perimeters in the first direction. The method then expands the perimeter of the second region in the first direction to define a perimeter of a third region.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: May 28, 2013
    Assignee: International Business Machines Corporation
    Inventors: Dureseti Chidambarrao, Richard Q. Williams
  • Publication number: 20130087841
    Abstract: A method and structure is directed to eDRAM cells with high-conductance electrodes. The method includes forming upper layers on a semiconductor substrate and forming an opening in the upper layers. The method further includes forming a trench in the semiconductor substrate, aligned with the opening.
    Type: Application
    Filed: October 10, 2011
    Publication date: April 11, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Veeraraghavan S. BASKER, Richard Q. WILLIAMS
  • Patent number: 8417503
    Abstract: A method and structure for a computer model of a device has a performance parameter. The performance parameter includes a first bounded range and a second bounded range. The first bounded range has performance parameter variations within a single manufacturing process, and the second bounded range has performance parameter variations of different device designs.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: April 9, 2013
    Assignee: International Business Machines Corporation
    Inventors: Kerry Bernstein, Josef S. Watts, Richard Q. Williams
  • Patent number: 8392867
    Abstract: A system and method for developing condensed netlists for sub-circuits within an integrated circuit and for modeling the performance of the integrated circuit based on the condensed netlists rather than full netlists. An IC layout is segmented into a plurality of sub-circuits, each comprising a group of one or more of a given type of active devices connected to (i.e., sharing) the same electrical sub-circuit terminals through a similar resistive network (i.e. such that they are subjected to approximately the same overall combined parasitic resistances). Full netlists corresponding to the sub-circuits are extracted from the layout and condensed. Each condensed netlist accounts for performance variations (e.g., as a function of variations in operating power supply voltages, operating temperatures and, optionally, self-heating and/or stress) exhibited by the active devices and resistive network in a sub-circuit.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: March 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Yanqing Deng, Paul A. Hyde, James M. Johnson, Todd G. McKenzie, Scott K. Springer, Richard Q. Williams
  • Publication number: 20120235233
    Abstract: The disclosure relates generally to a metal-oxide-semiconductor field effect transistor (MOSFET) structures and methods of forming the same. The MOSFET structure includes at least one semiconductor body on a substrate; a dielectric cap on a top surface of the at least one semiconductor body, wherein a width of the at least one semiconductor body is less than a width of the dielectric cap; a gate dielectric layer conformally coating the at least one semiconductor body; and at least one electrically conductive gate on the gate dielectric layer.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 20, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Edward J. Nowak, Richard Q. Williams
  • Publication number: 20120210283
    Abstract: The disclosure relates to the analysis of compensated layout shapes. A method in accordance with an embodiment includes: analyzing a semiconductor layout using a bucket structure, the layout including a semiconductor device; and applying a pattern template to a content of the bucket structure to identify a shape adjacent to the semiconductor device; wherein the pattern template is derived from layout groundrules.
    Type: Application
    Filed: February 14, 2011
    Publication date: August 16, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hongmei Li, Richard Q. Williams
  • Publication number: 20120185812
    Abstract: A system and method for developing condensed netlists for sub-circuits within an integrated circuit and for modeling the performance of the integrated circuit based on the condensed netlists rather than full netlists. An IC layout is segmented into a plurality of sub-circuits, each comprising a group of one or more of a given type of active devices connected to (i.e., sharing) the same electrical sub-circuit terminals through a similar resistive network (i.e. such that they are subjected to approximately the same overall combined parasitic resistances). Full netlists corresponding to the sub-circuits are extracted from the layout and condensed. Each condensed netlist accounts for performance variations (e.g., as a function of variations in operating power supply voltages, operating temperatures and, optionally, self-heating and/or stress) exhibited by the active devices and resistive network in a sub-circuit.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 19, 2012
    Applicant: International Business Machines Corporation
    Inventors: Yanqing Deng, Paul A. Hyde, James M. Johnson, Todd G. McKenzie, Scott K. Springer, Richard Q. Williams
  • Patent number: 8211741
    Abstract: Gate electrodes are formed on a semiconducting carbon nanotube, followed by deposition and patterning of a hole-inducing material layer and an electron inducing material layer on the carbon nanotube according to the pattern of a one dimensional circuit layout. Electrical isolation may be provided by cutting a portion of the carbon nanotube, forming a reverse biased junction of a hole-induced region and an electron-induced region of the carbon nanotube, or electrically biasing a region through a dielectric layer between two device regions of the carbon nanotube. The carbon nanotubes may be arranged such that hole-inducing material layer and electron-inducing material layer may be assigned to each carbon nanotube to form periodic structures such as a static random access memory (SRAM) array.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: July 3, 2012
    Assignee: International Business Machines Corporation
    Inventors: Joerg Appenzeller, AJ Kleinosowski, Edward J. Nowak, Richard Q. Williams
  • Publication number: 20120054711
    Abstract: A method (and computer program) identify shapes and locations of transistor elements within a geometric circuit layout. The transistor elements include an active area, at least one gate conductor and other transistor elements. Also, the gate conductor has sides running in a first direction, and has a width dimension running in a second direction perpendicular to the first direction. The method defines regions within the geometric circuit layout. To do so, the method defines a first region having a perimeter positioned along the sides of the gate conductor where the gate conductor intersects the active area and then expands the perimeter of the first region in the second direction to edges of the active area to define a perimeter of a second region. The first region and the second share perimeters in the first direction. The method then expands the perimeter of the second region in the first direction to define a perimeter of a third region.
    Type: Application
    Filed: September 1, 2010
    Publication date: March 1, 2012
    Applicant: International Business Machines Corporation
    Inventors: Dureseti Chidambarrao, Richard Q. Williams
  • Patent number: 8119474
    Abstract: A method of manufacture and device for a dual-gate CMOS structure. The structure includes a first plate in an insulating layer and a second plate above the insulating layer electrically corresponding to the first plate. An isolation structure is between the first plate and the second plate.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: February 21, 2012
    Assignee: International Business Machines Corporation
    Inventors: Andres Bryant, Edward J. Nowak, Richard Q. Williams