Patents by Inventor Aditya Pradeep Karmarkar

Aditya Pradeep Karmarkar 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: 20180144073
    Abstract: Oxidation of high aspect ratio IC structures, such as pillars and fins, can deform them. Disclosed is technology for simulating the deformation efficiently so that process conditions or pattern design can be altered to improve manufacturability. A database describing a 3D model of the structures prior to the oxidation process is provided. Oxidation is simulated in 1D on different surfaces to estimate a depth of starting material that will be converted during oxidation. Starting material is then replaced to that depth on all surfaces, by oxide with known expansion ratio. An initial mechanical stress and strain field is determined based on the model in dependence upon the replacement depth and the expansion ratio, and the system relaxes the fields to their equilibrium states, which include the deformations. The deformations are reported to a user, who can repeat the process using different oxidizing conditions and/or patterns to optimize manufacturability.
    Type: Application
    Filed: August 16, 2017
    Publication date: May 24, 2018
    Applicant: Synopsys, Inc.
    Inventors: Xiaopeng Xu, Aditya Pradeep Karmarkar, Karim El Sayed
  • Patent number: 9275182
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: March 1, 2016
    Assignee: Synopsys, Inc.
    Inventors: James David Sproch, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar
  • Publication number: 20150205904
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Application
    Filed: March 31, 2015
    Publication date: July 23, 2015
    Applicant: Synopsys, Inc.
    Inventors: James David Sproch, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar
  • Patent number: 9003348
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 7, 2015
    Assignee: Synopsys, Inc.
    Inventors: James David Sproch, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar
  • Publication number: 20140173545
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: SYNOPSYS, INC.
    Inventors: James David Sproch, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar
  • Patent number: 8661387
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: February 25, 2014
    Assignee: Synopsys, Inc.
    Inventors: James David Sproch, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar
  • Publication number: 20130132914
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Application
    Filed: January 14, 2013
    Publication date: May 23, 2013
    Inventors: James David Sproch, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar
  • Patent number: 8362622
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: January 29, 2013
    Assignee: Synopsys, Inc.
    Inventors: James David Sproch, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar
  • Publication number: 20100270597
    Abstract: Roughly described, the invention involves ways to characterize, take account of, or take advantage of stresses introduced by TSV's near transistors. The physical relationship between the TSV and nearby transistors can be taken into account when characterizing a circuit. A layout derived without knowledge of the physical relationships between TSV and nearby transistors, can be modified to do so. A macrocell can include both a TSV and nearby transistors, and a simulation model for the macrocell which takes into account physical relationships between the transistors and the TSV. A macrocell can include both a TSV and nearby transistors, one of the transistors being rotated relative to others. An IC can also include a transistor in such proximity to a TSV as to change the carrier mobility in the channel by more than the limit previously thought to define an exclusion zone.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 28, 2010
    Applicant: SYNOPSYS, INC.
    Inventors: JAMES DAVID SPROCH, Victor Moroz, Xiaopeng Xu, Aditya Pradeep Karmarkar