Patents by Inventor Corey K. Barrows

Corey K. Barrows 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: 9070791
    Abstract: Disclosed are embodiments of a design structure transistor that operates as a capacitor and an associated method of tuning capacitance within such a capacitor. The embodiments of the capacitor comprise a field effect transistor with front and back gates above and below a semiconductor layer, respectively. The capacitance value exhibited by the capacitor can be selectively varied between two different values by changing the voltage condition in a source/drain region of the transistor, e.g., using a switch or resistor between the source/drain region and a voltage supply. Alternatively, the capacitance value exhibited by the capacitor can be selectively varied between multiple different values by changing voltage conditions in one or more of multiple channel regions that are flanked by multiple source/drain regions within the transistor. The capacitor will exhibit different capacitance values depending upon the conductivity in each of the channel regions.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: June 30, 2015
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Joseph A. Iadanza, Edward J. Nowak, Douglas W. Stout, Mark S. Styduhar
  • Patent number: 8122165
    Abstract: A circuit that selectively connects an integrated circuit to elements external to the integrated circuits. The circuit includes an input/output element that selectively connects an input/output pin as a function of a power requirement or a signal bandwidth requirement of the integrated circuit. The input/output element includes one or more switching devices that connect the input/output pin to an external element, such as a power supply or external signal path. The input/output element also includes one or more switching devices that connect the input/output pin to an internal element, such as a power network or internal signal line.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: February 21, 2012
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Patent number: 8020137
    Abstract: A design structure for a circuit that selectively connects an integrated circuit to elements external to the integrated circuits. The circuit includes and input/output element that selectively connects an input/output pin as a function of a power requirement or a signal bandwidth requirement of the integrated circuit. The input/output element includes one or more switching devices that connect the input/output pin to an external element, such as a power supply or external signal path. The input/output element also includes one or more switching devices that connect the input/output pin to an internal element, such as a power network or internal signal line.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: September 13, 2011
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Patent number: 7949978
    Abstract: A design structure integrated circuit (IC) system architectures that allow for the reduction of on-chip or across-chip transient noise budgets by providing a means to avoid simultaneous high current demand events from at least two functional logic blocks, i.e., noise contributors, are disclosed. Embodiments of the IC system architectures include at least one noise event arbiter and at least two noise contributor blocks. A method of scheduling on-chip noise events to avoid simultaneous active transient noise events may include, but is not limited to: the noise event arbiter receiving simultaneously multiple requests-to-operate from multiple noise contributors; the noise event arbiter determining when each noise contributor may execute operations based on a pre-established dI/dt budget; and the noise event arbiter notifying each noise contributor as to when permission is granted to execute its operations.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: May 24, 2011
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Patent number: 7821053
    Abstract: Disclosed are embodiments of a transistor that operates as a capacitor and an associated method of tuning capacitance within such a capacitor. The embodiments of the capacitor comprise a field effect transistor with front and back gates above and below a semiconductor layer, respectively. The capacitance value exhibited by the capacitor can be selectively varied between two different values by changing the voltage condition in a source/drain region of the transistor, e.g., using a switch or resistor between the source/drain region and a voltage supply. Alternatively, the capacitance value exhibited by the capacitor can be selectively varied between multiple different values by changing voltage conditions in one or more of multiple channel regions that are flanked by multiple source/drain regions within the transistor. The capacitor will exhibit different capacitance values depending upon the conductivity in each of the channel regions.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: October 26, 2010
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Joseph A. Iadanza, Edward J. Nowak, Douglas W. Stout, Mark S. Styduhar
  • Patent number: 7619398
    Abstract: Disclosed herein is a system for controlling power supply voltage to an on-chip power distribution network. The system incorporates a programmable on-chip sensing network that can be selectively connected to the power distribution network at multiple locations. When the sensing network is selectively connected to the power distribution network at an optimal sensing point, a local voltage feedback signal from that optimal sensing point is generated and used to adjust the power supply voltage and, thus, to manage voltage distribution across the power distribution network. Additionally, the system incorporates a policy for managing the voltage distribution across the power distribution network, a means for profiling voltage drops across the power distribution network and a means for selecting the optimal sensing point based on the policy and the profile. Another embodiment of the system can further control power supply voltages to multiple power distribution networks on the same chip.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: November 17, 2009
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Douglas W. Kemerer, Douglas W. Stout, Peter A. Twombly
  • Publication number: 20090152594
    Abstract: A circuit that selectively connects an integrated circuit to elements external to the integrated circuits. The circuit includes an input/output element that selectively connects an input/output pin as a function of a power requirement or a signal bandwidth requirement of the integrated circuit. The input/output element includes one or more switching devices that connect the input/output pin to an external element, such as a power supply or external signal path. The input/output element also includes one or more switching devices that connect the input/output pin to an internal element, such as a power network or internal signal line.
    Type: Application
    Filed: December 12, 2007
    Publication date: June 18, 2009
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Publication number: 20090152591
    Abstract: A design structure for a circuit that selectively connects an integrated circuit to elements external to the integrated circuits. The circuit includes and input/output element that selectively connects an input/output pin as a function of a power requirement or a signal bandwidth requirement of the integrated circuit. The input/output element includes one or more switching devices that connect the input/output pin to an external element, such as a power supply or external signal path. The input/output element also includes one or more switching devices that connect the input/output pin to an internal element, such as a power network or internal signal line.
    Type: Application
    Filed: December 17, 2007
    Publication date: June 18, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Patent number: 7545165
    Abstract: Integrated circuit (IC) system architectures that allow for the reduction of on-chip or across-chip transient noise budgets by providing a means to avoid simultaneous high current demand events from at least two functional logic blocks, i.e., noise contributors, are disclosed. Embodiments of the IC systems architectures include at least one noise event arbiter and at least two noise contributor blocks. A method of scheduling on-clip noise events to avoid simultaneous active transient noise events may include, but is not limited to: the noise event arbiter receiving simultaneously multiple requests-to-operate from multiple noise contributers; the noise event arbiter determining when each noise contributer may execute operations based on a pre-established dI/dt budget; and the noise event arbiter notifying each noise contributer as to when permission is granted to execute its operations.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: June 9, 2009
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Publication number: 20090119625
    Abstract: A design structure integrated circuit (IC) system architectures that allow for the reduction of on-chip or across-chip transient noise budgets by providing a means to avoid simultaneous high current demand events from at least two functional logic blocks, i.e., noise contributors, are disclosed. Embodiments of the IC system architectures include at least one noise event arbiter and at least two noise contributor blocks. A method of scheduling on-chip noise events to avoid simultaneous active transient noise events may include, but is not limited to: the noise event arbiter receiving simultaneously multiple requests-to-operate from multiple noise contributors; the noise event arbiter determining when each noise contributor may execute operations based on a pre-established dI/dt budget; and the noise event arbiter notifying each noise contributor as to when permission is granted to execute its operations.
    Type: Application
    Filed: November 5, 2007
    Publication date: May 7, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Publication number: 20090108320
    Abstract: Disclosed are embodiments of a design structure transistor that operates as a capacitor and an associated method of tuning capacitance within such a capacitor. The embodiments of the capacitor comprise a field effect transistor with front and back gates above and below a semiconductor layer, respectively. The capacitance value exhibited by the capacitor can be selectively varied between two different values by changing the voltage condition in a source/drain region of the transistor, e.g., using a switch or resistor between the source/drain region and a voltage supply. Alternatively, the capacitance value exhibited by the capacitor can be selectively varied between multiple different values by changing voltage conditions in one or more of multiple channel regions that are flanked by multiple source/drain regions within the transistor. The capacitor will exhibit different capacitance values depending upon the conductivity in each of the channel regions.
    Type: Application
    Filed: October 25, 2007
    Publication date: April 30, 2009
    Inventors: Corey K. Barrows, Joseph A. Iadanza, Edward J. Nowak, Douglas W. Stout, Mark S. Styduhar
  • Publication number: 20090101940
    Abstract: A gate array cell adapted for standard cell design methodology or programmable gate array that incorporates a dual gate FET device to offer a range of performance options within the same unit cell area. The conductivity and drive strength of the dual gate device may be selectively tuned through independent processing of manufacturing parameters to provide an asymmetric circuit response for the device or a symmetric response as dictated by the circuit application.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 23, 2009
    Inventors: Corey K. Barrows, Joseph A. Iadanza, Edward J. Nowak, Douglas W. Stout
  • Publication number: 20080211472
    Abstract: Disclosed herein is a system for controlling power supply voltage to an on-chip power distribution network. The system incorporates a programmable on-chip sensing network that can be selectively connected to the power distribution network at multiple locations. When the sensing network is selectively connected to the power distribution network at an optimal sensing point, a local voltage feedback signal from that optimal sensing point is generated and used to adjust the power supply voltage and, thus, to manage voltage distribution across the power distribution network. Additionally, the system incorporates a policy for managing the voltage distribution across the power distribution network, a means for profiling voltage drops across the power distribution network and a means for selecting the optimal sensing point based on the policy and the profile. Another embodiment of the system can further control power supply voltages to multiple power distribution networks on the same chip.
    Type: Application
    Filed: May 14, 2008
    Publication date: September 4, 2008
    Applicant: International Business Machines Corporation
    Inventors: Corey K. Barrows, Douglas W. Kemerer, Douglas W. Sinut, Peter A. Twombly
  • Publication number: 20080164903
    Abstract: Integrated circuit (IC) system architectures that allow for the reduction of on-chip or across-chip transient noise budgets by providing a means to avoid simultaneous high current demand events from at least two functional logic blocks, i.e., noise contributors, are disclosed. Embodiments of the IC systems architectures include at least one noise event arbiter and at least two noise contributor blocks. A method of scheduling on-clip noise events to avoid simultaneous active transient noise events may include, but is not limited to: the noise event arbiter receiving simultaneously multiple requests-to-operate from multiple noise contributers; the noise event arbiter determining when each noise contributer may execute operations based on a pre-established dI/dt budget; and the noise event arbiter notifying each noise contributer as to when permission is granted to execute its operations.
    Type: Application
    Filed: January 9, 2007
    Publication date: July 10, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Corey K. Barrows, Kenneth J. Goodnow, Stephen G. Shuma, Peter A. Twombly, Paul S. Zuchowski
  • Patent number: 7397228
    Abstract: Disclosed herein is a system for controlling power supply voltage to an on-chip power distribution network. The system incorporates a programmable on-chip sensing network that can be selectively connected to the power distribution network at multiple locations. When the sensing network is selectively connected to the power distribution network at an optimal sensing point, a local voltage feedback signal from that optimal sensing point is generated and used to adjust the power supply voltage and, thus, to manage voltage distribution across the power distribution network. Additionally, the system incorporates a policy for managing the voltage distribution across the power distribution network, a means for profiling voltage drops across the power distribution network and a means for selecting the optimal sensing point based on the policy and the profile. Another embodiment of the system can further control power supply voltages to multiple power distribution networks on the same chip.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: July 8, 2008
    Assignee: International Business Machines Corporation
    Inventors: Corey K. Barrows, Douglas W. Kemerer, Douglas W. Sinut, Peter A. Twombly
  • Publication number: 20080111176
    Abstract: Disclosed are embodiments of a transistor that operates as a capacitor and an associated method of tuning capacitance within such a capacitor. The embodiments of the capacitor comprise a field effect transistor with front and back gates above and below a semiconductor layer, respectively. The capacitance value exhibited by the capacitor can be selectively varied between two different values by changing the voltage condition in a source/drain region of the transistor, e.g., using a switch or resistor between the source/drain region and a voltage supply. Alternatively, the capacitance value exhibited by the capacitor can be selectively varied between multiple different values by changing voltage conditions in one or more of multiple channel regions that are flanked by multiple source/drain regions within the transistor. The capacitor will exhibit different capacitance values depending upon the conductivity in each of the channel regions.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Corey K. Barrows, Joseph A. Iadanza, Edward J. Nowak, Douglas W. Stout, Mark S. Styduhar