Patents by Inventor Srinivasan Sivaram

Srinivasan Sivaram 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: 20240096850
    Abstract: An integrated controller, logic circuit and memory array (“CLM”) semiconductor device includes stacked controller, memory array logic circuit and memory array wafers, or individual dies diced therefrom, which together operate as a single, integrated semiconductor flash memory device. The memory array logic circuit dies and/or the memory array dies may be formed with full-thickness plated or filled vias connecting to bond pads on opposed surfaces of the dies. The bond pads of the respective stacked semiconductor dies may be aligned and affixed to each other to electrically and mechanically couple each of the semiconductor dies in the respective wafers together.
    Type: Application
    Filed: September 20, 2022
    Publication date: March 21, 2024
    Applicant: SanDisk Technologies LLC
    Inventors: Jayavel Pachamuthu, Srinivasan Sivaram, Masaaki Higashitani
  • Patent number: 11011500
    Abstract: A semiconductor device is disclosed including a memory module formed from a pair of semiconductor dies mounted face to face to each other at the wafer level. These die pairs are formed using wafer-to-wafer bonding technology, where the wafers may be bonded to each other when they are of full thickness. The semiconductor device may further include a CMOS logic circuit as part of the pair of semiconductor dies or in its own semiconductor die mounted to the pair of semiconductor dies.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: May 18, 2021
    Assignee: SanDisk Technologies LLC
    Inventors: Nagesh Vodrahalli, Shrikar Bhagath, Chih Yang Li, Srinivasan Sivaram, Rama Shukla
  • Publication number: 20210104495
    Abstract: A semiconductor device is disclosed including a memory module formed from a pair of semiconductor dies mounted face to face to each other at the wafer level. These die pairs are formed using wafer-to-wafer bonding technology, where the wafers may be bonded to each other when they are of full thickness. The semiconductor device may further include a CMOS logic circuit as part of the pair of semiconductor dies or in its own semiconductor die mounted to the pair of semiconductor dies.
    Type: Application
    Filed: March 12, 2020
    Publication date: April 8, 2021
    Applicant: SANDISK TECHNOLOGIES LLC
    Inventors: Nagesh Vodrahalli, Shrikar Bhagath, Chih Yang Li, Srinivasan Sivaram, Rama Shukla
  • Patent number: 9819219
    Abstract: The various embodiments herein provide an energy efficient DC off-grid home system and a method for operating the same. The system generates, stores and delivers the solar energy to the connected equipments in a controlled and efficient manner. The system has several solar panels, a battery bank, a home control unit, several appliances and equipments which run on electric power and a remote terminal unit. The solar panels are used to capture maximum solar energy from the sun. The battery bank has several batteries arranged in series and parallel combinations to store maximum electrical energy. The home control unit is a central control station which assists in storing energy in the battery bank, delivering optimum energy to the electrical appliances and monitoring the healthy operating status of the entire system.
    Type: Grant
    Filed: October 19, 2014
    Date of Patent: November 14, 2017
    Inventors: Ravi Annavajjhala, Srinivasan Sivaram
  • Publication number: 20150108839
    Abstract: The various embodiments herein provide an energy efficient DC off-grid home system and a method for operating the same. The system generates, stores and delivers the solar energy to the connected equipments in a controlled and efficient manner. The system has several solar panels, a battery bank, a home control unit, several appliances and equipments which run on electric power and a remote terminal unit. The solar panels are used to capture maximum solar energy from the sun. The battery bank has several batteries arranged in series and parallel combinations to store maximum electrical energy. The home control unit is a central control station which assists in storing energy in the battery bank, delivering optimum energy to the electrical appliances and monitoring the healthy operating status of the entire system.
    Type: Application
    Filed: October 19, 2014
    Publication date: April 23, 2015
    Inventors: SRINIVASAN SIVARAM, RAVI ANNAVAJJHALA
  • Patent number: 8481845
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 9, 2013
    Assignee: GTAT Corporation
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Patent number: 8247260
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: August 21, 2012
    Assignee: Twin Creeks Technologies, Inc.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Patent number: 7967936
    Abstract: Methods for bonding a donor wafer to a receiver element and transferring a lamina from the donor wafer to the receiver element are disclosed herein. The donor wafer may be, for example, a monocrystalline silicon wafer with a thickness of from about 300 microns to about 1000 microns, and the lamina may be may be less than 100 microns thick. The receiver element may be composed of, for example, metal or glass, and the receiver element may have dissimilar thermal expansion properties from the lamina. Although the lamina and the receiver element may have dissimilar thermal expansion properties, the methods disclosed herein maintain the integrity of the bond between the lamina and the receiver element.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: June 28, 2011
    Assignee: Twin Creeks Technologies, Inc.
    Inventors: Aditya Agarwal, Srinivasan Sivaram, Michael Vyvoda
  • Patent number: 7842585
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: November 30, 2010
    Assignee: Twin Creeks Technologies, Inc.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Publication number: 20100147448
    Abstract: Methods for bonding a donor wafer to a receiver element and transferring a lamina from the donor wafer to the receiver element are disclosed herein. The donor wafer may be, for example, a monocrystalline silicon wafer with a thickness of from about 300 microns to about 1000 microns, and the lamina may be may be less than 100 microns thick. The receiver element may be composed of, for example, metal or glass, and the receiver element may have dissimilar thermal expansion properties from the lamina. Although the lamina and the receiver element may have dissimilar thermal expansion properties, the methods disclosed herein maintain the integrity of the bond between the lamina and the receiver element.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 17, 2010
    Applicant: TWIN CREEKS TECHNOLOGIES, INC.
    Inventors: Aditya Agarwal, Srinivasan Sivaram, Michael Vyvoda
  • Publication number: 20100009488
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Application
    Filed: July 8, 2009
    Publication date: January 14, 2010
    Applicant: TWIN CREEKS TECHNOLOGIES, INC.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Publication number: 20090194162
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 6, 2009
    Applicant: Twin Creeks Technologies, Inc.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Publication number: 20090194163
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Application
    Filed: September 10, 2008
    Publication date: August 6, 2009
    Applicant: TWIN CREEKS TECHNOLOGIES, INC.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Publication number: 20090194164
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Application
    Filed: September 11, 2008
    Publication date: August 6, 2009
    Applicant: TWIN CREEKS TECHNOLOGIES, INC.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Publication number: 20090197367
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Application
    Filed: September 12, 2008
    Publication date: August 6, 2009
    Applicant: TWIN CREEKS TECHNOLOGIES, INC.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Publication number: 20090197368
    Abstract: A very thin photovoltaic cell is formed by implanting gas ions below the surface of a donor body such as a semiconductor wafer. Ion implantation defines a cleave plane, and a subsequent step exfoliates a thin lamina from the wafer at the cleave plane. A photovoltaic cell, or all or a portion of the base or emitter of a photovoltaic cell, is formed within the lamina. In preferred embodiments, the wafer is affixed to a receiver before the cleaving step. Electrical contact can be formed to both surfaces of the lamina, or to one surface only.
    Type: Application
    Filed: September 11, 2008
    Publication date: August 6, 2009
    Applicant: TWIN CREEKS TECHNOLOGIES, INC.
    Inventors: Srinivasan Sivaram, Aditya Agarwal, S. Brad Herner, Christopher J. Petti
  • Patent number: 5612254
    Abstract: A device and methods of forming an interconnection within a prepatterned channel in a semiconductor device are described. The present invention includes a method of forming an interconnect channel within a semiconductor device. A first dielectric layer is deposited over a substrate and patterned to form a contact opening that is subsequently filled with a contact plug. A second dielectric layer is deposited over the patterned first dielectric layer and the contact plug. The second dielectric layer is patterned to form the interconnect channel, wherein the first dielectric layer acts as an etch stop to prevent etching of the substrate. The present invention also includes a method of forming an interconnect. A dielectric layer is deposited over a substrate and patterned to form an interconnect chapel. A metal layer is deposited over the patterned dielectric layer and within the interconnect channel.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: March 18, 1997
    Assignee: Intel Corporation
    Inventors: Xiao-Chun Mu, Srinivasan Sivaram, Donald S. Gardner, David B. Fraser