Patents by Inventor Niraj Subba

Niraj Subba 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: 8502283
    Abstract: A semiconductor substrate is provided having an insulator thereon with a semiconductor layer on the insulator. A deep trench isolation is formed, introducing strain to the semiconductor layer. A gate dielectric and a gate are formed on the semiconductor layer. A spacer is formed around the gate, and the semiconductor layer and the insulator are removed outside the spacer. Recessed source/drain are formed outside the spacer.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: August 6, 2013
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Qi Xiang, Niraj Subba, Witold P. Maszara, Zoran Krivokapic, Ming-Ren Lin
  • Patent number: 7932103
    Abstract: An integrated circuit system includes measuring capacitance for a base structure between a base gate and a base connector thereof, measuring capacitance for a test structure between a test gate and a test connector thereof, the test structure having the test gate, a test dielectric, and the test connector with the test dielectric extending thereunder, and determining a difference between the capacitances of the base structure and the test structure to determine parasitic capacitance for the base structure between the base gate and the base connector thereof.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: April 26, 2011
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Niraj Subba, Jung-Suk Goo
  • Publication number: 20100010798
    Abstract: The present method is a method of modeling Drain-Induced Barrier Lowering (DIBL) in a transistor model, the transistor model being based on a MOSFET transistor. The transistor model includes a base, a source, a drain, a gate, and a gate terminal. In the present method, a voltage is applied to the gate terminal, a voltage is applied to the drain, and an electrical potential is applied between the gate terminal and gate. The magnitude of electrical potential applied between the gate terminal and gate is varied in proportion to the magnitude of voltage applied to the drain.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 14, 2010
    Inventors: Vineet Wason, Sushant Suryagandh, Zhi-Yuan Wu, Priyanka Chiney, Niraj Subba
  • 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
  • Publication number: 20080204052
    Abstract: An integrated circuit system includes measuring capacitance for a base structure between a base gate and a base connector thereof, measuring capacitance for a test structure between a test gate and a test connector thereof, the test structure having the test gate, a test dielectric, and the test connector with the test dielectric extending thereunder, and determining a difference between the capacitances of the base structure and the test structure to determine parasitic capacitance for the base structure between the base gate and the base connector thereof.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Niraj Subba, Jung-Suk Goo
  • Publication number: 20080054316
    Abstract: A semiconductor substrate is provided having an insulator thereon with a semiconductor layer on the insulator. A deep trench isolation is formed, introducing strain to the semiconductor layer. A gate dielectric and a gate are formed on the semiconductor layer. A spacer is formed around the gate, and the semiconductor layer and the insulator are removed outside the spacer. Recessed source/drain are formed outside the spacer.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 6, 2008
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Qi Xiang, Niraj Subba, Witold Maszara, Zoran Krivokapic, Ming-Ren Lin
  • Patent number: 7306997
    Abstract: A semiconductor substrate is provided having an insulator thereon with a semiconductor layer on the insulator. A deep trench isolation is formed, introducing strain to the semiconductor layer. A gate dielectric and a gate are formed on the semiconductor layer. A spacer is formed around the gate, and the semiconductor layer and the insulator are removed outside the spacer. Recessed source/drain are formed outside the spacer.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: December 11, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Qi Xiang, Niraj Subba, Witold P. Maszara, Zoran Krivokapic, Ming-Ren Lin
  • Publication number: 20060099752
    Abstract: A semiconductor substrate is provided having an insulator thereon with a semiconductor layer on the insulator. A deep trench isolation is formed, introducing strain to the semiconductor layer. A gate dielectric and a gate are formed on the semiconductor layer. A spacer is formed around the gate, and the semiconductor layer and the insulator are removed outside the spacer. Recessed source/drain are formed outside the spacer.
    Type: Application
    Filed: November 10, 2004
    Publication date: May 11, 2006
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Qi Xiang, Niraj Subba, Witold Maszara, Zoran Krivokapic, Ming-Ren Lin