Patents by Inventor Deepak K. Nayak

Deepak K. Nayak 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: 10355043
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to integrated vertical transistors and light emitting diodes and methods of manufacture. The structure includes a vertically oriented stack of material having a light emitting diode (LED) integrated with a source region and a drain region of a vertically oriented active device.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: July 16, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Ajey P. Jacob, Deepak K. Nayak, Srinivasa R. Banna
  • Patent number: 10217900
    Abstract: The present disclosure generally relates to semiconductor structures and, more particularly, to light emitting diode (LED) structures and methods of manufacture. The method includes: forming a buffer layer on a substrate, the buffer layer having at least a lattice mismatch with the substrate; and relaxing the buffer layer by pixelating the buffer layer into discrete islands, prior to formation of a quantum well.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 26, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Deepak K. Nayak, Srinivasa R. Banna, Ajey P. Jacob
  • Publication number: 20190058082
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to uniform semiconductor nanowire and nanosheet light emitting diodes and methods of manufacture. The structure includes a buffer layer; at least one dielectric layer on the buffer layer, the at least one dielectric layer having a plurality of openings exposing the buffer layer; and a plurality of uniformly sized and shaped nanowires or nanosheets formed in the openings and extending above the at least one dielectric layer.
    Type: Application
    Filed: August 16, 2017
    Publication date: February 21, 2019
    Inventors: Deepak K. NAYAK, Srinivasa R. BANNA, Ajey P. JACOB
  • Publication number: 20190013436
    Abstract: The present disclosure generally relates to semiconductor structures and, more particularly, to light emitting diode (LED) structures and methods of manufacture. The method includes: forming a buffer layer on a substrate, the buffer layer having at least a lattice mismatch with the substrate; and relaxing the buffer layer by pixelating the buffer layer into discrete islands, prior to formation of a quantum well.
    Type: Application
    Filed: July 6, 2017
    Publication date: January 10, 2019
    Inventors: Deepak K. NAYAK, Srinivasa R. BANNA, Ajey P. JACOB
  • Publication number: 20190013337
    Abstract: An integrated circuit (IC) microdisplay structure is disclosed. The structure can include: a first oxide layer positioned on a substrate; a first voltage source (VSS) pad within the first oxide layer; a metal pillar disposed within the first oxide layer and on the first VSS pad; a first gallium nitride layer disposed on the metal pillar and extending over the first oxide layer; and at least one subpixel formed from the first gallium nitride layer. Alternatively, the structure can include a first oxide layer positioned on a substrate; a first metal layer positioned on the first oxide layer; a first gallium nitride layer on the first metal layer; and at least one subpixel formed from the first gallium nitride layer. The structure may further include a subpixel driver electrically connected to the at least one subpixels where a portion of the subpixel driver is vertically aligned with a subpixel.
    Type: Application
    Filed: July 5, 2017
    Publication date: January 10, 2019
    Inventors: Deepak K. Nayak, Srinivasa Banna
  • Patent number: 10177178
    Abstract: An integrated circuit (IC) microdisplay structure is disclosed. The structure can include: a first oxide layer positioned on a substrate; a first voltage source (VSS) pad within the first oxide layer; a metal pillar disposed within the first oxide layer and on the first VSS pad; a first gallium nitride layer disposed on the metal pillar and extending over the first oxide layer; and at least one subpixel formed from the first gallium nitride layer. Alternatively, the structure can include a first oxide layer positioned on a substrate; a first metal layer positioned on the first oxide layer; a first gallium nitride layer on the first metal layer; and at least one subpixel formed from the first gallium nitride layer. The structure may further include a subpixel driver electrically connected to the at least one subpixels where a portion of the subpixel driver is vertically aligned with a subpixel.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: January 8, 2019
    Assignee: GLOABLFOUNDRIES INC.
    Inventors: Deepak K. Nayak, Srinivasa Banna
  • Publication number: 20190006413
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to integrated vertical transistors and light emitting diodes and methods of manufacture. The structure includes a vertically oriented stack of material having a light emitting diode (LED) integrated with a source region and a drain region of a vertically oriented active device.
    Type: Application
    Filed: June 28, 2017
    Publication date: January 3, 2019
    Inventors: Ajey P. JACOB, Deepak K. NAYAK, Srinivasa R. BANNA
  • Patent number: 10056453
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to semiconductor wafers with reduced bowing and warping and methods of manufacture. The structure includes a substrate including plurality of trenches which have progressively different depths as they extend radially inwardly from an edge of the substrate towards a center of the substrate.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 21, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Ajey Poovannummoottil Jacob, Srinivasa R. Banna, Deepak K. Nayak, Bartlomiej J. Pawlak
  • Publication number: 20180026096
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to semiconductor wafers with reduced bowing and warping and methods of manufacture. The structure includes a substrate including plurality of trenches which have progressively different depths as they extend radially inwardly from an edge of the substrate towards a center of the substrate.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 25, 2018
    Inventors: Ajey Poovannummoottil Jacob, Srinivasa R. Banna, Deepak K. Nayak, Bartlomiej J. Pawlak
  • Patent number: 7956385
    Abstract: A circuit for protecting a transistor during the manufacture of an integrated circuit device is disclosed. The circuit comprises a transistor having a gate formed over an active region formed in a die of the integrated circuit device; a protection element formed in the die of the integrated circuit device; and a programmable interconnect coupled between the gate of the transistor and the protection element, the programmable interconnect enabling the protection element to be decoupled from the transistor.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 7, 2011
    Assignee: Xilinx, Inc.
    Inventors: Yuhao Luo, Shuxian Wu, Xin X. Wu, Jae-Gyung Ahn, Deepak K. Nayak, Daniel Gitlin
  • Patent number: 6506640
    Abstract: Submicron-dimensioned, MOSFET devices are formed using multiple implants for forming an impurity concentration distribution profile exhibiting three impurity concentration peaks at a predetermined depths below the semiconductor surface substrate. The inventive method reduces “latch-up” and “punch-through” with controllable adjustment of the threshold voltage.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: January 14, 2003
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Emi Ishida, Deepak K. Nayak, Ming Yin Hao
  • Patent number: 6372590
    Abstract: A transistor having reduced series resistance and method for producing the same. The method reduces transistor series resistance by implanting nitrogen into an nLDD/Source/Drain extension region of the transistor. The nitrogen implantation in connection with the implantation of a conventional n-type dopant (e.g. arsenic or phosphorus), results in a transistor having low series resistance, reduced hot carrier effects and no significant increase in source/drain extension overlap.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: April 16, 2002
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Deepak K. Nayak, Ming-Yin Hao
  • Patent number: 6194259
    Abstract: A method of forming a retrograde channel concentration profile in the NMOS region of a semiconductor device and forming a shallow LDD regions in a PMOS region of the semiconductor device. The retrograde channel concentration profile in the NMOS regions is formed by implanting nitrogen and boron ions into the NMOS region at selected concentrations and implantation energy levels. The nitrogen ions are implanted in the NMOS region at a selected concentration in the range of 1×1013 to 2×1015 ions per cm2 and at a selected implantation energy in the range of 10-100 KeV. The boron ions are implanted in the NMOS region at a selected concentration in the range of 1×1012 to 1×1014 ions per cm2 and at a selected implantation energy in the range of 5-50 KeV. The shallow LDD regions in the PMOS region are formed by implanting nitrogen and boron ions into the PMOS region at selected concentrations and implantation energy levels.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: February 27, 2001
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Deepak K. Nayak, Ming-Yin Hao
  • Patent number: 6051460
    Abstract: A CMOS device and a method for forming the same is provided so as to overcome the problem of boron penetration through the thin gate oxide of P-channel devices. Silicon is implanted into the polysilicon gate electrode of the PMOS device functioning as a diffusion barrier for preventing boron penetration through the thin gate oxide and into the semiconductor substrate. As a result, the reliability of the CMOS device will be enhanced.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: April 18, 2000
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Deepak K. Nayak, Ming-Yin Hao
  • Patent number: 5973370
    Abstract: A CMOS device and a method for forming the same is provided so as to overcome the problem of boron penetration through the thin gate oxide of P-channel devices. Silicon is implanted into the polysilicon gate electrode of the PMOS device functioning as a diffusion barrier for preventing boron penetration through the thin gate oxide and into the semiconductor substrate. As a result, the reliability of the CMOS device will be enhanced.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: October 26, 1999
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Deepak K. Nayak, Ming-Yin Hao