Patents by Inventor Richard Quimby Williams

Richard Quimby 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: 9755030
    Abstract: A structure and method for fabricating a semiconductor device is described. A device structure including a gate structure, a source region and a drain region is disposed on a first surface of a substrate. Contact holes are etched through the source and drain regions and through a first portion of the substrate. The contact holes are filled with a conductive material to produce contact studs coupled to the source and drain regions. A second portion of the substrate is removed. A surface of the contact studs is exposed through a second surface of the substrate opposite to the gate structure for connection to a wiring layer disposed over the second surface of the substrate.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: September 5, 2017
    Assignee: International Business Machines Corporation
    Inventors: Carl John Radens, Richard Quimby Williams
  • Publication number: 20170179240
    Abstract: A structure and method for fabricating a semiconductor device is described. A device structure including a gate structure, a source region and a drain region is disposed on a first surface of a substrate. Contact holes are etched through the source and drain regions and through a first portion of the substrate. The contact holes are filled with a conductive material to produce contact studs coupled to the source and drain regions. A second portion of the substrate is removed. A surface of the contact studs is exposed through a second surface of the substrate opposite to the gate structure for connection to a wiring layer disposed over the second surface of the substrate.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Carl John Radens, Richard Quimby Williams
  • Patent number: 8112729
    Abstract: A method and system for modeling an integrated circuit. The method includes converting a representation of the integrated circuit into design shapes of design levels of a design of the integrated circuit; adding control shapes to the design, the control shapes not defining any physical part of the integrated circuit; extracting layout-dependent stress parameters of the devices from the design levels of the design based on the control shapes and the design shapes; converting the layout-dependent stress parameters to stress parameters using a stress algorithm; generating stressed device parameters from the stress parameters using a compact model; and simulating performance of the integrated circuit using the stressed device parameters in a simulation model of the integrated circuit design.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: February 7, 2012
    Assignee: International Business Machines Corporation
    Inventors: William Robert Tonti, Richard Quimby Williams
  • Publication number: 20100269075
    Abstract: A method and system for modeling an integrated circuit. The method includes converting a representation of the integrated circuit into design shapes of design levels of a design of the integrated circuit; adding control shapes to the design, the control shapes not defining any physical part of the integrated circuit; extracting layout-dependent stress parameters of the devices from the design levels of the design based on the control shapes and the design shapes; converting the layout-dependent stress parameters to stress parameters using a stress algorithm; generating stressed device parameters from the stress parameters using a compact model; and simulating performance of the integrated circuit using the stressed device parameters in a simulation model of the integrated circuit design.
    Type: Application
    Filed: April 20, 2009
    Publication date: October 21, 2010
    Inventors: William Robert Tonti, Richard Quimby Williams
  • Patent number: 7532501
    Abstract: A memory cell (e.g., static random access memory (SRAM) cell) includes a plurality of back-gated n-type field effect transistors (nFETs), and a plurality of double-gated p-type field effect transistors (pFETs) operatively coupled to the plurality of nFETs.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: May 12, 2009
    Assignee: International Business Machines Corporation
    Inventors: Rajiv V. Joshi, Keunwoo Kim, Edward Joseph Nowak, Richard Quimby Williams
  • Patent number: 7250351
    Abstract: Enhanced silicon-on-insulator transistors and methods are provided for implementing enhanced silicon-on-insulator transistors. The enhanced silicon-on-insulator (SOI) transistors include a thin buried oxide (BOX) layer under a device channel and a thick self-aligned buried oxide (BOX) region under SOI source/drain diffusions. A selective epitaxial growth is utilized in the source/drain regions to implement appropriate strain to enhance both PFET and NFET devices simultaneously.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: July 31, 2007
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Carl John Radens, William Robert Tonti, Richard Quimby Williams
  • Patent number: 7129138
    Abstract: Enhanced silicon-on-insulator (SOI) buried oxide (BOX) structures and methods are provided for implementing enhanced SOI BOX structures. An oxygen implant step is performed from a backside into a thinned silicon substrate layer. An anneal step forms thick buried oxide (BOX) regions from oxygen implants in the silicon substrate layer. The oxygen implant step forms an isolated region near the oxygen implants. A backside implant step selectively dopes the isolated region for forming a backgate for an SOI device being formed including a selected one of anti-fuse (AF) devices, and SOI transistors including PFET and NFET devices.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: October 31, 2006
    Assignee: International Business Machines Corporation
    Inventors: Toshiharu Furukawa, Carl John Radens, William Robert Tonti, Richard Quimby Williams
  • Patent number: 6397380
    Abstract: A method for optimizing and transforming a compiler program in a computer system. The method comprises the steps of constructing a compiler comprising a program augmentation capability; and, locating this capability in association with phases of a standard compilation process. The program augmentation capability may comprise symbolic automatic differentiation, or generation of Taylor series, or generation of Hessian or Jacobian matrices.
    Type: Grant
    Filed: April 18, 1996
    Date of Patent: May 28, 2002
    Assignee: International Business Machines Corporation
    Inventors: Calvin John Bittner, Bertrand M. Grossman, Richard Dimick Jenks, Stephen Michael Watt, Richard Quimby Williams
  • Patent number: 6223341
    Abstract: A method for optimizing and transforming a compiler program in a computer system. The method comprises the steps of constructing a compiler comprising a program augmentation capability; and, locating this capability in association with phases of a standard compilation process. The program augmentation capability may comprise symbolic automatic differentiation, or generation of Taylor series, or generation of Hessian or Jacobian matrices.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: April 24, 2001
    Assignee: International Business Machines Corporation
    Inventors: Calvin John Bittner, Bertrand M. Grossman, Richard Dimick Jenks, Stephen Michael Watt, Richard Quimby Williams
  • Patent number: 6063132
    Abstract: A method using a generate-and-verify computer program product to generate by repetitive passes a design rules checking computer program, wherein the design rules are described in a file called a runset. The design rules checking program is used for exhaustive testing of VLSI chips for compliance to the design rules of a given VLSI fabrication process. The runset is repeatedly iterated in loop fashion with respect to a testcase file containing groups of layout structures or shapes used for verifying the correctness of the runset. A general purpose shapes processing program creates an error shapes file for storing geometrical errors found in each said layout structure. Two additional shapes are used in the verification process: user boundary shapes for defining areas in which errors are not to be detected for a given design rule, and automated boundary shapes created to surround each said layout structure with a boundary that defines regions where error shapes can occur.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: May 16, 2000
    Assignee: International Business Machines Corporation
    Inventors: William Frantz DeCamp, Laurice Thorsen Earl, Jason Steven Minahan, James Robert Montstream, Daniel John Nickel, Joseph James Oler, Jr., Richard Quimby Williams