Patents by Inventor Lansing D. Pickup

Lansing D. Pickup 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: 10970448
    Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: April 6, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brian M. Dreibelbis, John P. Dubuque, Eric A. Foreman, Jeffrey G. Hemmett, Lansing D. Pickup, Natesan Venkateswaran, Chandramouli Visweswariah, Vladimir Zolotov
  • Patent number: 10788877
    Abstract: Embodiments of the disclosure provide a low power multiplexer (MUX) circuit, including: a first data input coupled to an input of a first pass gate device; a second data input coupled to an input of a second pass gate device; a hold latch having an input coupled to a data output of the MUX circuit and an output coupled to an input of a supplemental pass gate device; and a pulse generator for generating a HOLD pulse signal, wherein the HOLD pulse signal is coupled to a control input of the supplemental pass gate device. The hold latch is configured to hold a previously valid output data signal of the MUX circuit until a valid input data signal is available at the first data input or the second data input.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: September 29, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Sebastian T. Ventrone, Lansing D. Pickup
  • Publication number: 20190340323
    Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 7, 2019
    Inventors: Brian M. DREIBELBIS, John P. DUBUQUE, Eric A. FOREMAN, Jeffrey G. HEMMETT, Lansing D. PICKUP, Natesan VENKATESWARAN, Chandramouli VISWESWARIAH, Vladimir ZOLOTOV
  • Patent number: 10394982
    Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: August 27, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brian M. Dreibelbis, John P. Dubuque, Eric A. Foreman, Jeffrey G. Hemmett, Lansing D. Pickup, Natesan Venkateswaran, Chandramouli Visweswariah, Vladimir Zolotov
  • Publication number: 20150242554
    Abstract: Systems and methods for improving timing closure of new and existing IC chips by breaking at least one parameter of interest into two or more partial parameters. More specifically, a method is provided for that includes propagating at least one timing analysis run for a semiconductor product. The method further includes identifying at least one parameter of interest used in the at least one timing analysis run. The method further includes splitting the at least one parameter into two parts comprising a controlled part and an uncontrolled part. The method further includes correlating or anti-correlating the controlled part with another parameter used in the at least one timing analysis run. The method further includes projecting timing using the correlation or anti-correlation between the controlled part and the another parameter and using the uncontrolled part of the at least one parameter.
    Type: Application
    Filed: February 26, 2014
    Publication date: August 27, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Brian M. DREIBELBIS, John P. DUBUQUE, Eric A. FOREMAN, Jeffrey G. HEMMETT, Lansing D. PICKUP, Natesan VENKATESWARAN, Chandramouli VISWESWARIAH, Vladimir ZOLOTOV
  • Patent number: 8381161
    Abstract: A computer-implemented method identifies at least one proprietary geometric figure from a plurality of geometric figures within a design data layout format file. The proprietary geometric figure in the design data layout format file may be replaced with a placeholder geometric figure. Cell names and connection names associated with the proprietary geometric figure are renamed from a netlist file that defines electrical connections between the geometric figures with obfuscating names. A modified design data layout format file may be generated that includes the placeholder geometric figure and a modified netlist file including the obfuscating names. The modified file enables IC designers to complete their design and checking activities, but inhibits reverse-engineering of the proprietary geometric & netlist data.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 19, 2013
    Assignee: International Business Machines Corporation
    Inventors: William R. Andersen, Oded Katz, Rina Kipnis, Lansing D. Pickup, Christopher B. Reynolds, Joseph H. Underwood
  • Patent number: 7966589
    Abstract: The invention comprises a design structure for a dynamic voltage state-saving latch electrical circuit comprising a charge device adapted as a storage element, an integrated recovery mechanism, a supply voltage rail connected to the charge device, a hold signal allocated to the integrated recovery mechanism, a data signal input allocated to said charge device, a data signal output distributed from the charge device, and a clock signal allotted to the charge device, wherein said integrated recovery mechanism maintains a state of the charge device independent of the charge device.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: June 21, 2011
    Assignee: International Business Machines Corporation
    Inventors: Pascal A. Nsame, Anthony J. Perri, Lansing D. Pickup, Sebastian T. Ventrone, Matthew R. Welland
  • Publication number: 20080186069
    Abstract: The invention comprises a design structure for a dynamic voltage state-saving latch electrical circuit comprising a charge device adapted as a storage element, an integrated recovery mechanism, a supply voltage rail connected to the charge device, a hold signal allocated to the integrated recovery mechanism, a data signal input allocated to said charge device, a data signal output distributed from the charge device, and a clock signal allotted to the charge device, wherein said integrated recovery mechanism maintains a state of the charge device independent of the charge device.
    Type: Application
    Filed: April 8, 2008
    Publication date: August 7, 2008
    Applicant: International Business Machines Corporation
    Inventors: Pascal A. Nsame, Anthony J. Perri, Lansing D. Pickup, Sebastian T. Ventrone, Matthew R. Welland