Patents by Inventor Ciby Thuruthiyil

Ciby Thuruthiyil 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: 8863057
    Abstract: An approach for methodology enabling a verification of IC designs that compensates for degraded performance due to a physical placement, particularly a stacked physical placement is disclosed. A set of stacked devices from a plurality of devices in an IC design is determined. One or more instance parameters indicating a physical placement of a device in the set is determined. A compensation metric indicating one or more electrical characteristics of a device in the set is determined based on the one or more instance parameters.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: October 14, 2014
    Assignee: GlobalFoundries Inc.
    Inventors: Kaveri Mathur, Sriraaman Sridharan, Ciby Thuruthiyil
  • Patent number: 8818785
    Abstract: A method for simulating a tucked transistor device having a diffusion region defined in a semiconductor layer, a gate electrode adjacent a first side of the diffusion region, a floating gate electrode adjacent a second side of the diffusion region, and an isolation structure disposed beneath at least a portion of the floating gate electrode is provided. The method includes receiving a first netlist having an entry for the tucked transistor device in a computing apparatus. The entry defines parameters associated with the gate electrode and the diffusion region. A parasitic capacitance component is added to the entry representing a gate capacitance between the floating gate and the diffusion region in the computing apparatus.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: August 26, 2014
    Assignees: GLOBALFOUNDRIES Inc., Advanced Micro Devices, Inc.
    Inventors: Jung-Suk Goo, Ciby Thuruthiyil, Venkat Ramasubramanian, John Faricelli
  • Publication number: 20140129999
    Abstract: An approach for methodology enabling a verification of IC designs that compensates for degraded performance due to a physical placement, particularly a stacked physical placement is disclosed. A set of stacked devices from a plurality of devices in an IC design is determined. One or more instance parameters indicating a physical placement of a device in the set is determined. A compensation metric indicating one or more electrical characteristics of a device in the set is determined based on the one or more instance parameters.
    Type: Application
    Filed: November 7, 2012
    Publication date: May 8, 2014
    Applicant: GLOBALFOUNDRIES Inc.
    Inventors: Kaveri MATHUR, Sriraaman SRIDHARAN, Ciby THURUTHIYIL
  • Publication number: 20130117001
    Abstract: A method for simulating a tucked transistor device having a diffusion region defined in a semiconductor layer, a gate electrode adjacent a first side of the diffusion region, a floating gate electrode adjacent a second side of the diffusion region, and an isolation structure disposed beneath at least a portion of the floating gate electrode is provided. The method includes receiving a first netlist having an entry for the tucked transistor device in a computing apparatus. The entry defines parameters associated with the gate electrode and the diffusion region. A parasitic capacitance component is added to the entry representing a gate capacitance between the floating gate and the diffusion region in the computing apparatus.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicants: ADVANCED MICRO DEVICES, INC., GLOBALFOUNDRIES INC.
    Inventors: Jung-Suk Goo, Ciby Thuruthiyil, Venkat Ramasubramanian, John Faricelli
  • Publication number: 20130117002
    Abstract: A tucked transistor device has a diffusion region defined in a semiconductor layer, a switching gate electrode adjacent a first side of the diffusion region, a floating gate electrode adjacent a second side of the diffusion region, and an isolation structure disposed beneath at least a portion of the floating gate electrode. A method includes receiving a netlist having an entry for the tucked transistor device in a computing apparatus, the entry defining parameters associated with the switching gate electrode and the diffusion region, receiving a device parameter file including at least a gate bounded junction capacitance parameter that includes a junction capacitance bounded by the switching gate electrode modified to include a contribution of the floating gate electrode to a gate bounded junction capacitance of the tucked transistor device. Operation of the tucked transistor device is simulated in the computing apparatus using a transistor device model and the netlist.
    Type: Application
    Filed: November 3, 2011
    Publication date: May 9, 2013
    Applicants: ADVANCED MICRO DEVICES, INC., GLOBALFOUNDRIES INC.
    Inventors: Jung-Suk Goo, Ciby Thuruthiyil, Venkat Ramasubramanian, John Faricelli
  • Publication number: 20100207175
    Abstract: A semiconductor transistor device is provided. The transistor device includes a layer of semiconductor material, a gate structure overlying the layer of semiconductor material, a source region in the layer of semiconductor material, and a drain region in the layer of semiconductor material. The source region has a stress-inducing semiconductor material located therein, while the drain region is free of any stress-inducing semiconductor material. This asymmetric arrangement of stress-inducing elements results in relatively high source-body leakage, and relatively low drain-body leakage, which is beneficial in analog circuit applications.
    Type: Application
    Filed: February 16, 2009
    Publication date: August 19, 2010
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Sushant SURYAGANDH, Ciby THURUTHIYIL, Kaveri MATHUR
  • Publication number: 20090259453
    Abstract: A method of modeling an SRAM cell is provided. Initially, transistor models are provided based on transistor devices, and an SRAM cell model is provided including the transistor models. The present methodology streamlines the modeling process by modeling in order the pull up, pass gate and pull down transistors so as to minimize the number of transistor modeling iterations needed, and by focusing on the specific areas of transistor operation to achieve the desired level of operational accuracy. Variations to the model are provided, mimicking variations in data from actual devices, and yield based on failure estimation is measured using the model and its variations.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 15, 2009
    Inventors: Vineet Wason, Ciby Thuruthiyil, Priyanka Chiney, Qiang Chen, Sriram Balasubramanian
  • Publication number: 20080272432
    Abstract: Accumulation mode MOS transistors and methods for fabricating such transistors are provided. A method comprises providing an SOI layer disposed overlying a substrate with an insulating layer interposed therebetween. The SOI layer is impurity doped with a first dopant of a first conductivity type and spacers and a gate stack having a sacrificial polycrystalline silicon gate electrode is formed on the SOI layer. A first and a second silicon region are impurity doped with a second dopant of the first conductivity type. The first silicon region and the second silicon region are aligned to the gate stack and spacers. The sacrificial polycrystalline silicon gate electrode is removed and a metal-comprising gate electrode is formed from a metal-comprising material having a mid-gap work function.
    Type: Application
    Filed: March 19, 2007
    Publication date: November 6, 2008
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Niraj SUBBA, Ciby THURUTHIYIL
  • Patent number: 6756255
    Abstract: A complementary metal oxide semiconductor (CMOS) fabrication process. The process comprises creating a polysilicon layer having a first thickness for a transistor gate area and a second thickness for a fuse area. The first thickness is greater than the second thickness, wherein most of the polysilicon in the fuse area will react with a metal layer to form polysilicide during a rapid thermal anneal (RTA) process.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: June 29, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Ciby Thuruthiyil, Philip A. Fisher