Patents by Inventor Sri Rama Namala

Sri Rama Namala 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: 11776655
    Abstract: Disclosed in some examples are methods, systems, devices, memory devices, and machine-readable mediums for using a non-defective portion of a block of memory on which there is a defect on a different portion. Rather than disable the entire block, the system may disable only a portion of the block (e.g., a first deck of the block) and salvage a different portion of the block (e.g., a second deck of the block).
    Type: Grant
    Filed: October 13, 2022
    Date of Patent: October 3, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Sri Rama Namala, Jung Sheng Hoei, Jianmin Huang, Ashutosh Malshe, Xiangang Luo
  • Publication number: 20230111510
    Abstract: Disclosed in some examples are methods, systems, devices, memory devices, and machine-readable mediums for using a non-defective portion of a block of memory on which there is a defect on a different portion. Rather than disable the entire block, the system may disable only a portion of the block (e.g., a first deck of the block) and salvage a different portion of the block (e.g., a second deck of the block).
    Type: Application
    Filed: December 6, 2022
    Publication date: April 13, 2023
    Inventors: Sri Rama Namala, Lu Tong, Kristopher Kopel, Sheng-Huang Lee, Chang H. Siau
  • Publication number: 20230033870
    Abstract: Disclosed in some examples are methods, systems, devices, memory devices, and machine-readable mediums for using a non-defective portion of a block of memory on which there is a defect on a different portion. Rather than disable the entire block, the system may disable only a portion of the block (e.g., a first deck of the block) and salvage a different portion of the block (e.g., a second deck of the block).
    Type: Application
    Filed: October 13, 2022
    Publication date: February 2, 2023
    Inventors: Sri Rama Namala, Jung Sheng Hoei, Jianmin Huang, Ashutosh Malshe, Xiangang Luo
  • Patent number: 11537484
    Abstract: Disclosed in some examples are methods, systems, devices, memory devices, and machine-readable mediums for using a non-defective portion of a block of memory on which there is a defect on a different portion. Rather than disable the entire block, the system may disable only a portion of the block (e.g., a first deck of the block) and salvage a different portion of the block (e.g., a second deck of the block).
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: December 27, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Sri Rama Namala, Lu Tong, Kristopher Kopel, Sheng-Huang Lee, Chang H. Siau
  • Patent number: 11475974
    Abstract: Disclosed in some examples are methods, systems, devices, memory devices, and machine-readable mediums for using a non-defective portion of a block of memory on which there is a defect on a different portion. Rather than disable the entire block, the system may disable only a portion of the block (e.g., a first deck of the block) and salvage a different portion of the block (e.g., a second deck of the block).
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: October 18, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Sri Rama Namala, Jung Sheng Hoei, Jianmin Huang, Ashutosh Malshe, Xiangang Luo
  • Patent number: 11398256
    Abstract: Embodiments relate generally to semiconductors and memory technology, and more particularly, to systems, integrated circuits, and methods to implement a memory architecture that includes local bit lines for accessing subsets of memory elements, such as memory elements based on third dimensional memory technology. In at least some embodiments, an integrated circuit includes a cross-point memory array formed above a logic layer. The cross-point memory array includes X-lines and Y-lines, of which at least one Y-line includes groups of Y-line portions. Each of the Y-line portions can be arranged in parallel with other Y-line portions within a group of the Y-line portions. Also included are memory elements disposed between a subset of the X-lines and the group of the Y-line portions. In some embodiments, a decoder is configured to select a Y-line portion from the group of Y-line portions to access a subset of the memory elements.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: July 26, 2022
    Assignee: Unity Semiconductor Corporation
    Inventors: Chang Hua Siau, Christophe Chevallier, Darrell Rinerson, Seow Fong Lim, Sri Rama Namala
  • Publication number: 20220199189
    Abstract: Disclosed in some examples are methods, systems, devices, memory devices, and machine-readable mediums for using a non-defective portion of a block of memory on which there is a defect on a different portion. Rather than disable the entire block, the system may disable only a portion of the block (e.g., a first deck of the block) and salvage a different portion of the block (e.g., a second deck of the block).
    Type: Application
    Filed: August 4, 2021
    Publication date: June 23, 2022
    Inventors: Sri Rama Namala, Jung Sheng Hoei, Jianmin Huang, Ashutosh Malshe, Xiangang Luo
  • Publication number: 20220066894
    Abstract: Disclosed in some examples are methods, systems, devices, memory devices, and machine-readable mediums for using a non-defective portion of a block of memory on which there is a defect on a different portion. Rather than disable the entire block, the system may disable only a portion of the block (e.g., a first deck of the block) and salvage a different portion of the block (e.g., a second deck of the block).
    Type: Application
    Filed: August 6, 2021
    Publication date: March 3, 2022
    Inventors: Sri Rama Namala, Lu Tong, Kristopher Kopel, Sheng-Huang Lee, Chang H. Siau
  • Publication number: 20200302973
    Abstract: Embodiments relate generally to semiconductors and memory technology, and more particularly, to systems, integrated circuits, and methods to implement a memory architecture that includes local bit lines for accessing subsets of memory elements, such as memory elements based on third dimensional memory technology. In at least some embodiments, an integrated circuit includes a cross-point memory array formed above a logic layer. The cross-point memory array includes X-lines and Y-lines, of which at least one Y-line includes groups of Y-line portions. Each of the Y-line portions can be arranged in parallel with other Y-line portions within a group of the Y-line portions. Also included are memory elements disposed between a subset of the X-lines and the group of the Y-line portions. In some embodiments, a decoder is configured to select a Y-line portion from the group of Y-line portions to access a subset of the memory elements.
    Type: Application
    Filed: April 9, 2020
    Publication date: September 24, 2020
    Inventors: Chang Hua Siau, Christophe Chevallier, Darrell Rinerson, Seow Fong Lim, Sri Rama Namala
  • Patent number: 10622028
    Abstract: Embodiments relate generally to semiconductors and memory technology, and more particularly, to systems, integrated circuits, and methods to implement a memory architecture that includes local bit lines for accessing subsets of memory elements, such as memory elements based on third dimensional memory technology. In at least some embodiments, an integrated circuit includes a cross-point memory array formed above a logic layer. The cross-point memory array includes X-lines and Y-lines, of which at least one Y-line includes groups of Y-line portions. Each of the Y-line portions can be arranged in parallel with other Y-line portions within a group of the Y-line portions. Also included are memory elements disposed between a subset of the X-lines and the group of the Y-line portions. In some embodiments, a decoder is configured to select a Y-line portion from the group of Y-line portions to access a subset of the memory elements.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 14, 2020
    Assignee: Unity Semiconductor Corporation
    Inventors: Chang Hua Siau, Christophe Chevallier, Darrell Rinerson, Seow Fong Lim, Sri Rama Namala
  • Patent number: 10552284
    Abstract: Techniques for controlling power on a PCIe direct attached non-volatile memory storage system are disclosed. In one particular embodiment, the techniques may be realized as a method for controlling power including providing power to a memory attached via the PCIe interface; monitoring a state of the attached memory; determining whether a new operation to be implemented on the attached memory would cause the power provided to the memory to exceed a preset threshold; and stalling execution of the new operation on the attached memory when it is determined that the new operation would exceed the preset threshold while continuing execution of preexisting operations on the attached memory.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: February 4, 2020
    Assignee: Western Digital Technologies, Inc.
    Inventors: Krishanth Skandakumaran, Arun Kumar Medapati, Sri Rama Namala, Ashwin Narasimha, Ajith Kumar B
  • Patent number: 10387239
    Abstract: A computer-implemented method for detecting real flash failures in a runtime environment and determining the cause of the failure may include identifying a software parameter and a hardware parameter associated with a flash memory device at runtime; storing the software parameter and the hardware parameter in a failure detector module coupled to the flash memory device; detecting a flash translation layer failure associated with the flash memory device; performing analysis of the software parameter and the hardware parameter stored in the failure detector module by comparing them to predefined thresholds; and determining a cause of the flash translation layer failure based on the performed analysis.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: August 20, 2019
    Assignee: Western Digital Technologies, Inc.
    Inventors: Sateesh Kondapalli, Sri Rama Namala
  • Publication number: 20180342268
    Abstract: Embodiments relate generally to semiconductors and memory technology, and more particularly, to systems, integrated circuits, and methods to implement a memory architecture that includes local bit lines for accessing subsets of memory elements, such as memory elements based on third dimensional memory technology. In at least some embodiments, an integrated circuit includes a cross-point memory array formed above a logic layer. The cross-point memory array includes X-lines and Y-lines, of which at least one Y-line includes groups of Y-line portions. Each of the Y-line portions can be arranged in parallel with other Y-line portions within a group of the Y-line portions. Also included are memory elements disposed between a subset of the X-lines and the group of the Y-line portions. In some embodiments, a decoder is configured to select a Y-line portion from the group of Y-line portions to access a subset of the memory elements.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 29, 2018
    Inventors: Chang Hua Siau, Christophe Chevallier, Darrell Rinerson, Seow Fong Lim, Sri Rama Namala
  • Publication number: 20180293123
    Abstract: A computer-implemented method for detecting real flash failures in a runtime environment and determining the cause of the failure may include identifying a software parameter and a hardware parameter associated with a flash memory device at runtime; storing the software parameter and the hardware parameter in a failure detector module coupled to the flash memory device; detecting a flash translation layer failure associated with the flash memory device; performing analysis of the software parameter and the hardware parameter stored in the failure detector module by comparing them to predefined thresholds; and determining a cause of the flash translation layer failure based on the performed analysis.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 11, 2018
    Inventors: Sateesh Kondapalli, Sri Rama Namala
  • Patent number: 10002646
    Abstract: Embodiments relate generally to semiconductors and memory technology, and more particularly, to systems, integrated circuits, and methods to implement a memory architecture that includes local bit lines for accessing subsets of memory elements, such as memory elements based on third dimensional memory technology. In at least some embodiments, an integrated circuit includes a cross-point memory array formed above a logic layer. The cross-point memory array includes X-lines and Y-lines, of which at least one Y-line includes groups of Y-line portions. Each of the Y-line portions can be arranged in parallel with other Y-line portions within a group of the Y-line portions. Also included are memory elements disposed between a subset of the X-lines and the group of the Y-line portions. In some embodiments, a decoder is configured to select a Y-line portion from the group of Y-line portions to access a subset of the memory elements.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: June 19, 2018
    Assignee: Unity Semiconductor Corporation
    Inventors: Chang Hua Siau, Christophe Chevallier, Darrell Rinerson, Seow Fong Lim, Sri Rama Namala
  • Patent number: 9940036
    Abstract: Techniques for controlling PCIe direct attached non-volatile memory storage system are disclosed. In one particular embodiment, the techniques may be realized as a method including monitoring a temperature of a memory attached via the PCIe interface, determining whether an operation implemented on the attached memory has caused the temperature of the memory to exceed a preset threshold, and controlling an I/O rate of the attached memory based on the determination such that the I/O rate is greater than zero.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: April 10, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Krishanth Skandakumaran, Arun Kumar Medapati, Sri Rama Namala, Ashwin Narasimha, Ajith Kumar B
  • Publication number: 20170206150
    Abstract: Techniques for controlling power on a PCIe direct attached non-volatile memory storage system are disclosed. In one particular embodiment, the techniques may be realized as a method for controlling power including providing power to a memory attached via the PCIe interface; monitoring a state of the attached memory; determining whether a new operation to be implemented on the attached memory would cause the power provided to the memory to exceed a preset threshold; and stalling execution of the new operation on the attached memory when it is determined that the new operation would exceed the preset threshold while continuing execution of preexisting operations on the attached memory.
    Type: Application
    Filed: April 3, 2017
    Publication date: July 20, 2017
    Inventors: Krishanth SKANDAKUMARAN, Arun Kumar MEDAPATI, Sri Rama NAMALA, Ashwin NARASIMHA, Ajith KUMAR B
  • Patent number: 9612763
    Abstract: Techniques for controlling power on a PCIe direct attached non-volatile memory storage system are disclosed. In one particular embodiment, the techniques may be realized as a method for controlling power including providing power to a memory attached via the PCIe interface; monitoring a state of the attached memory; determining whether a new operation to be implemented on the attached memory would cause the power provided to the memory to exceed a preset threshold; and stalling execution of the new operation on the attached memory when it is determined that the new operation would exceed the preset threshold while continuing execution of preexisting operations on the attached memory.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: April 4, 2017
    Assignee: Western Digital Technologies, Inc.
    Inventors: Krishanth Skandakumaran, Arun Kumar Medapati, Sri Rama Namala, Ashwin Narasimha, Ajith Kumar B
  • Publication number: 20160085458
    Abstract: Techniques for controlling PCIe direct attached non-volatile memory storage system are disclosed. In one particular embodiment, the techniques may be realized as a method including monitoring a temperature of a memory attached via the PCIe interface, determining whether an operation implemented on the attached memory has caused the temperature of the memory to exceed a preset threshold, and controlling an I/O rate of the attached memory based on the determination such that the I/O rate is greater than zero.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Applicant: HGST NETHERLANDS B.V.
    Inventors: Krishanth SKANDAKUMARAN, Arun Kumar MEDAPATI, Sri Rama NAMALA, Ashwin NARASIMHA, Ajith Kumar B
  • Publication number: 20160085290
    Abstract: Techniques for controlling power on a PCIe direct attached non-volatile memory storage system are disclosed. In one particular embodiment, the techniques may be realized as a method for controlling power including providing power to a memory attached via the PCIe interface; monitoring a state of the attached memory; determining whether a new operation to be implemented on the attached memory would cause the power provided to the memory to exceed a preset threshold; and stalling execution of the new operation on the attached memory when it is determined that the new operation would exceed the preset threshold while continuing execution of preexisting operations on the attached memory.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 24, 2016
    Applicant: HGST NETHERLANDS B.V.
    Inventors: Krishanth SKANDAKUMARAN, Arun Kumar MEDAPATI, Sri Rama NAMALA, Ashwin NARASIMHA, Ajith Kumar B