Patents by Inventor Simon J. Lovett

Simon J. Lovett 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: 10403389
    Abstract: Methods, systems, techniques, and devices for operating a ferroelectric memory cell or cells are described. Groups of cells may be operated in different ways depending, for example, on a relationship between cell plates of the group of cells, pages of cells, and/or sections of cells. Cells may be selected in pairs or in larger multiples in order to accommodate an electric current relationship (such as a short) between two or more cells within a group, a page, and/or a section. When performing an access based on a smaller page size, a larger page size of cells may be selected to accommodate a short between plates within the smaller page, the larger page, and/or a section of memory that includes the smaller page or the larger page.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: September 3, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Simon J. Lovett, Richard E. Fackenthal
  • Publication number: 20190253050
    Abstract: Apparatuses and methods for temperature and process corner sensitive control of power gated domains are described. An example apparatus includes an internal circuit; a power supply line; and a power gating control circuit which responds, at least in part, to a first change from a first state to a second state of a control signal to initiate supplying a power supply voltage from the power supply line to the internal circuit, and continue supplying the power supply voltage from the power supply line to internal circuit for at least a timeout period from a second change from the second state to the first state of the control signal, in which the timeout period represent temperature dependency.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 15, 2019
    Applicant: Micron Technology, Inc.
    Inventor: Simon J. Lovett
  • Patent number: 10305471
    Abstract: Apparatuses and methods for temperature and process corner sensitive control of power gated domains are described. An example apparatus includes an internal circuit; a power supply line; and a power gating control circuit which responds, at least in part, to a first change from a first state to a second state of a control signal to initiate supplying a power supply voltage from the power supply line to the internal circuit, and continue supplying the power supply voltage from the power supply line to internal circuit for at least a timeout period from a second change from the second state to the first state of the control signal, in which the timeout period represent temperature dependency.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: May 28, 2019
    Assignee: Micron Technology, Inc.
    Inventor: Simon J. Lovett
  • Publication number: 20190066819
    Abstract: Various embodiments, disclosed herein, include apparatus and methods of using the apparatus having a core array of memory cells arranged as data storage elements; and an array of latches to store repair information for the core array. Each latch can be structured as a static random access memory cell. Additional apparatus, systems, and methods are disclosed.
    Type: Application
    Filed: August 22, 2018
    Publication date: February 28, 2019
    Inventor: Simon J. Lovett
  • Publication number: 20180286494
    Abstract: Methods, systems, techniques, and devices for operating a ferroelectric memory cell or cells are described. Groups of cells may be operated in different ways depending, for example, on a relationship between cell plates of the group of cells, pages of cells, and/or sections of cells. Cells may be selected in pairs or in larger multiples in order to accommodate an electric current relationship (such as a short) between two or more cells within a group, a page, and/or a section. When performing an access based on a smaller page size, a larger page size of cells may be selected to accommodate a short between plates within the smaller page, the larger page, and/or a section of memory that includes the smaller page or the larger page.
    Type: Application
    Filed: June 6, 2018
    Publication date: October 4, 2018
    Inventors: Simon J. Lovett, Richard E. Fackenthal
  • Publication number: 20180062640
    Abstract: Apparatuses and methods for temperature and process corner sensitive control of power gated domains are described. An example apparatus includes an internal circuit; a power supply line; and a power gating control circuit which responds, at least in part, to a first change from a first state to a second state of a control signal to initiate supplying a power supply voltage from the power supply line to the internal circuit, and continue supplying the power supply voltage from the power supply line to internal circuit for at least a timeout period from a second change from the second state to the first state of the control signal, in which the timeout period represent temperature dependency.
    Type: Application
    Filed: August 30, 2016
    Publication date: March 1, 2018
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: SIMON J. LOVETT
  • Patent number: 9772969
    Abstract: A memory access mode detection circuit and method for detecting and initiating memory access modes for a memory device The memory access mode detection circuit receives the memory address signals, the control signals, and the clock signal and generates a first mode detection signal in response to receipt of the memory address signals or a first combination of control signals. An first mode initiation signal is generated a time delay subsequent to the detection signal to initiate the first mode memory access operation. In response to receipt of a second combination of control signals and an active clock signal, the memory access mode detection circuit further generates a second mode detection signal to initiate a second mode memory access operation and to suppress generation of the first mode detection signal, thereby canceling the first mode memory access operation.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: September 26, 2017
    Assignee: Micron Technology, Inc.
    Inventor: Simon J. Lovett
  • Patent number: 9508409
    Abstract: Apparatuses and methods for implementing masked write commands are disclosed herein. An example apparatus may include a memory bank, a local buffer circuit, and an address control circuit. The local buffer circuit may be associated with the memory bank. The address control circuit may be coupled to the memory bank and configured to receive a command and an address associated with the command. The address control circuit may include a global buffer circuit configured to store the address. The address control circuit may further be configured to delay the command using one of a plurality of command paths based, at least in part, on a write latency and to provide the address stored in the global buffer circuit to the local buffer circuit to be stored therein.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: November 29, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Mark K. Hadrick, Jeffrey P. Wright, Victor Wong, Simon J. Lovett, Donald M. Morgan, William F. Jones, Sujeet Ayyapureddi, Dean D. Gans, Jongtae Kwak
  • Publication number: 20150302907
    Abstract: Apparatuses and methods for implementing masked write commands are disclosed herein. An example apparatus may include a memory bank, a local buffer circuit, and an address control circuit. The local buffer circuit may be associated with the memory bank. The address control circuit may be coupled to the memory bank and configured to receive a command and an address associated with the command. The address control circuit may include a global buffer circuit configured to store the address. The address control circuit may further be configured to delay the command using one of a plurality of command paths based, at least in part, on a write latency and to provide the address stored in the global buffer circuit to the local buffer circuit to be stored therein.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 22, 2015
    Applicant: Micron Technology, Inc.
    Inventors: Mark K. Hadrick, Jeffrey P. Wright, Victor Wong, Simon J. Lovett, Donald M. Morgan, William F. Jones, Sujeet Ayyapureddi, Dean D. Gans, Jongtae Kwak
  • Publication number: 20140361753
    Abstract: A temperature sensing device can be embedded in a memory module or system in order to sense the temperature of the memory module or system. One oscillator generates a temperature variable signal that increases frequency as the temperature of the oscillator increases and decreases frequency when the temperature of the oscillator decreases. A temperature invariant oscillator generates a fixed width signal that is controlled by an oscillator read logic and indicates a temperature sense cycle. An n-bit counter is clocked by the temperature variable signal while the fixed width signal enables/inhibits the counter. The faster the counter counts, the larger the count value at the end of the sense cycle indicated by the fixed width signal. A larger count value indicates a warmer temperature. A smaller count value indicates a colder temperature.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Applicant: Round Rock Research, LLC
    Inventor: Simon J. Lovett
  • Patent number: 8817565
    Abstract: A temperature sensing device can be embedded in a memory module or system in order to sense the temperature of the memory module or system. One oscillator generates a temperature variable signal that increases frequency as the temperature of the oscillator increases and decreases frequency when the temperature of the oscillator decreases. A temperature invariant oscillator generates a fixed width signal that is controlled by an oscillator read logic and indicates a temperature sense cycle. An n-bit counter is clocked by the temperature variable signal while the fixed width signal enables/inhibits the counter. The faster the counter counts, the larger the count value at the end of the sense cycle indicated by the fixed width signal. A larger count value indicates a warmer temperature. A smaller count value indicates a colder temperature.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: August 26, 2014
    Assignee: Round Rock Research
    Inventor: Simon J. Lovett
  • Patent number: 8670286
    Abstract: Memories, memory arrays, and methods for selectively providing electrical power to memory sections of a memory array are disclosed. A memory array can be operated by decoupling row decoder circuitry from receiving electrical power while the memory array is not being accessed. Portions of the memory array to be accessed are determined from external memory addresses and the row decoder for the portions of the memory array to be accessed are selectively provided with electrical power. The section of memory is then accessed. One such array includes memory section voltage supply rails having decoder circuits coupled to receive electrical power, and further includes memory section power control logic. The control logic selectively couples the memory section voltage supply rail to a primary voltage supply to provide electrical power to the memory section voltage supply rail in response to being selected based on memory addresses.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 11, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Simon J. Lovett
  • Patent number: 8638628
    Abstract: Systems, apparatus, memory devices, sense amplifiers and methods are provided, such as a system that includes an input node, a first transistor having a gate that couples to the input node, and a second transistor having another gate that couples to the input node. In one or more embodiments, the second transistor has a greater activation voltage threshold than does the first transistor and the first transistor amplifies a signal that is present on the input node. In one such embodiment, after the first transistor amplifies the signal, the second transistor maintains the amplified signal on the input node while the first transistor is deactivated.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: January 28, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Simon J. Lovett
  • Patent number: 8599629
    Abstract: According to one embodiment, a device for synchronizing data output from two or more memory arrays that includes a plurality of sense circuits configured to be responsive to a clock signal. The device further includes a plurality of latches and a tracking circuit. The tracking circuit may be configured to produce a control signal responsive to the clock signal. The control signal may be operable to enable the plurality of latches. The tracking has an associated delay that is substantially the same as a delay associated with at least one of the plurality of sense circuits.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: December 3, 2013
    Assignee: Micron Technology, Inc.
    Inventors: Simon J. Lovett, Dean Gans
  • Publication number: 20120300558
    Abstract: According to one embodiment, a device for synchronizing data output from two or more memory arrays that includes a plurality of sense circuits configured to be responsive to a clock signal. The device further includes a plurality of latches and a tracking circuit. The tracking circuit may be configured to produce a control signal responsive to the clock signal. The control signal may be operable to enable the plurality of latches. The tracking has an associated delay that is substantially the same as a delay associated with at least one of the plurality of sense circuits.
    Type: Application
    Filed: August 8, 2012
    Publication date: November 29, 2012
    Applicant: Micron Technology, Inc.
    Inventors: Simon J. Lovett, Dean Gans
  • Patent number: 8248870
    Abstract: According to one embodiment, a combination is comprised of a plurality of sense amps, each having an input for receiving a clock signal. A data bus is for receiving data from the plurality of sense amps in response to a clock signal being input to the plurality of sense amps. A tracking circuit is responsive to the clock signal for producing a control signal. A plurality of latches is responsive to the control signal for latching data from the bus. The control signal has a delay that is equal to the time needed for a last data bit to arrive at the plurality of latches. That delay may be equal to a delay associated with inputting the clock signal to a last one of the plurality of sense amps, plus a delay of the last sense amp, plus a delay of the data bus. That amount of delay may be achieved in a number of ways which combines electrical delay with delay inherently associated with the tracking circuit's location.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: August 21, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Simon J. Lovett, Dean Gans
  • Publication number: 20120182820
    Abstract: Memories, memory arrays, and methods for selectively providing electrical power to memory sections of a memory array are disclosed. A memory array can be operated by decoupling row decoder circuitry from receiving electrical power while the memory array is not being accessed. Portions of the memory array to be accessed are determined from external memory addresses and the row decoder for the portions of the memory array to be accessed are selectively provided with electrical power. The section of memory is then accessed. One such array includes memory section voltage supply rails having decoder circuits coupled to receive electrical power, and further includes memory section power control logic. The control logic selectively couples the memory section voltage supply rail to a primary voltage supply to provide electrical power to the memory section voltage supply rail in response to being selected based on memory addresses.
    Type: Application
    Filed: March 27, 2012
    Publication date: July 19, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: Simon J. Lovett
  • Publication number: 20120166862
    Abstract: A temperature sensing device can be embedded in a memory module or system in order to sense the temperature of the memory module or system. One oscillator generates a temperature variable signal that increases frequency as the temperature of the oscillator increases and decreases frequency when the temperature of the oscillator decreases. A temperature invariant oscillator generates a fixed width signal that is controlled by an oscillator read logic and indicates a temperature sense cycle. An n-bit counter is clocked by the temperature variable signal while the fixed width signal enables/inhibits the counter. The faster the counter counts, the larger the count value at the end of the sense cycle indicated by the fixed width signal. A larger count value indicates a warmer temperature. A smaller count value indicates a colder temperature.
    Type: Application
    Filed: March 5, 2012
    Publication date: June 28, 2012
    Applicant: ROUND ROCK RESEARCH, LLC
    Inventor: Simon J. Lovett
  • Patent number: 8189414
    Abstract: Systems, apparatus, memory devices, sense amplifiers and methods are provided, such as a system that includes an input node, a first transistor having a gate that couples to the input node, and a second transistor having another gate that couples to the input node. In one or more embodiments, the second transistor has a greater activation voltage threshold than does the first transistor and the first transistor amplifies a signal that is present on the input node. In one such embodiment, after the first transistor amplifies the signal, the second transistor maintains the amplified signal on the input node while the first transistor is deactivated.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: May 29, 2012
    Assignee: Micron Technology, Inc.
    Inventor: Simon J. Lovett
  • Patent number: 8159896
    Abstract: Memories, memory arrays, and methods for selectively providing electrical power to memory sections of a memory array are disclosed. A memory array can be operated by decoupling row decoder circuitry from receiving electrical power while the memory array is not being accessed. Portions of the memory array to be accessed are determined from external memory addresses and the row decoder for the portions of the memory array to be accessed are selectively provided with electrical power. The section of memory is then accessed. One such array includes memory section voltage supply rails having decoder circuits coupled to receive electrical power, and further includes memory section power control logic. The control logic selectively couples the memory section voltage supply rail to a primary voltage supply to provide electrical power to the memory section voltage supply rail in response to being selected based on memory addresses.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: April 17, 2012
    Assignee: Micron Technology, Inc.
    Inventor: Simon J. Lovett