Patents by Inventor Hagop Nazarian

Hagop Nazarian 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: 10347335
    Abstract: A retainer node circuit is provided that can retain state information of a volatile circuit element (e.g., a flip-flop, latch, switch, register, etc.) of an electronic device for planned or unplanned power-down events. The retainer node circuit can include a resistive-switching memory cell that is nonvolatile, having very fast read and write performance. Coupled with power management circuitry, the retainer node circuit can be activated to receive and store a signal (e.g., bit) output by the volatile circuit element, and activated to output the stored signal. Various embodiments disclose non-volatile retention of state information for planned shut-down events as well as unplanned shut-down events. With read and write speeds in the tens of nanoseconds, sleep mode can be provided for volatile circuit elements between clock cycles of longer time-frame applications, enabling intermittent power-down events between active periods. This enables reduction in power without loss of activity for an electronic device.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: July 9, 2019
    Assignee: CROSSBAR, INC.
    Inventors: Mehdi Asnaashari, Hagop Nazarian
  • Publication number: 20190102358
    Abstract: Provided herein resistive random access memory matrix multiplication structures and methods. A non-volatile memory logic system can comprise a bit line and at a set of wordlines. Also included can be a set of resistive switching memory cells at respective intersections between the bit line and the set of wordlines. The set of resistive switching memory cells are programmed with a value of an input data bit of a first data matrix and receive respective currents on the set of wordlines. The respective currents comprise respective values of an activation data bit of a second data matrix. A resulting value based on a matrix multiplication corresponds to an output value of the bit line.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 4, 2019
    Inventors: Mehdi Asnaashari, Hagop Nazarian, Christophe Sucur, Sylvain Dubois
  • Publication number: 20190103162
    Abstract: Provided herein is a computing memory architecture. The non-volatile memory architecture can comprise a resistive random access memory array comprising multiple sets of bitlines and multiple wordlines, a first data interface for receiving data from an external device and for outputting data to the external device, and a second data interface for outputting data to the external device. The non-volatile memory architecture can also comprise programmable processing elements connected to respective sets of the multiple sets of bitlines of the resistive random access memory array, and connected to the data interface. The programmable processing elements are configured to receive stored data from the resistive random access memory array via the respective sets of bitlines or to receive external data from the external device via the data interface, and execute a logical or mathematical algorithm on the external data or the stored data and generate processed data.
    Type: Application
    Filed: September 27, 2018
    Publication date: April 4, 2019
    Inventors: Mehdi Asnaashari, Hagop Nazarian, Christophe Sucur, Sylvain Dubois
  • Patent number: 10210929
    Abstract: A non-volatile memory device is provided that uses one or more volatile elements. In some embodiments, the non-volatile memory device can include a resistive two-terminal selector that can be in a low resistive state or a high resistive state depending on the voltage being applied. A MOS (“metal-oxide-semiconductor”) transistor in addition to a capacitor or transistor acting as a capacitor can also be included. A first terminal of the capacitor can be connected to a voltage source, and the second terminal of the capacitor can be connected to the selector device. A floating gate of an NMOS transistor can be connected to the other side of the selector device, and a second NMOS transistor can be connected in series with the first NMOS transistor.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 19, 2019
    Assignee: CROSSBAR, INC.
    Inventors: Hagop Nazarian, Sung Hyun Jo
  • Patent number: 10199105
    Abstract: Providing for a configuration cells for junction nodes of a field programmable gate array (FPGA) is described herein. By way of example, a configuration cell can comprise non-volatile resistive switching memory to facilitate programmable storage of data as an input to a control circuit of a junction node. The control circuit can activate or deactivate a junction node of the FPGA in response to a value of the data stored in the non-volatile resistive switching memory. The control circuit can comprise an SRAM circuit for fast operation of the junction node. Moreover, the non-volatile memory of the configuration cell facilitates fast power-up of the control circuit utilizing data stored in the resistive switching memory, and minimizes power consumption associated with storing the data.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: February 5, 2019
    Assignee: CROSSBAR, INC.
    Inventors: Lin Shih Liu, Hagop Nazarian
  • Patent number: 10199093
    Abstract: A detection circuit that can detect a two-terminal memory cell changing state. For example, in response to electrical stimuli, a memory cell will change state, e.g., to a defined higher resistance state or a defined lower resistance state. Other, techniques do not detect this state change until after the stimuli is completed and a subsequent sensing operation (e.g., read pulse) is performed. The detection circuit can detect the state change during application of the electrical stimuli that cause the state change and can do so by comparing the magnitudes or values of two particular current parameters.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: February 5, 2019
    Assignee: CROSSBAR, INC.
    Inventors: Sang Nguyen, Hagop Nazarian, Tianhong Yan
  • Publication number: 20190027219
    Abstract: A configuration bit for a switching block routing array comprising a non-volatile memory cell is provided. By way of example, the configuration bit and switching block routing array can be utilized for a field programmable gate array, or other suitable circuit(s), integrated circuit(s), application specific integrated circuit(s), electronic device or the like. The configuration bit can comprise a switch that selectively connects or disconnects a node of the switching block routing array. A non-volatile memory cell connected to the switch can be utilized to activate or deactivate the switch. In one or more embodiments, the non-volatile memory cell can comprise a volatile resistance switching device connected in serial to a gate node of the switch, configured to trap charge at the gate node to activate the switch, or release the charge at the gate node to deactivate the switch.
    Type: Application
    Filed: September 21, 2018
    Publication date: January 24, 2019
    Inventors: Hagop Nazarian, Sung Hyun Jo
  • Patent number: 10134469
    Abstract: Two-terminal memory can be formed into a memory array that contains many discrete memory cells in a physical and a logical arrangement. Where each memory cell is isolated from surrounding circuitry by a single transistor, the resulting array is referred to as a 1T1R memory array. In contrast, where a group of memory cells are isolated from surrounding circuitry by a single transistor, the result is a 1TnR memory array. Because memory cells of a group are not isolated among themselves in the 1TnR case, bit disturb effects are theoretically possible when operating on a single memory cell. Read operations are disclosed for two-terminal memory devices configured to mitigate bit disturb effects, despite a lack of isolation transistors among memory cells of an array. Disclosed operations can facilitate reduced bit disturb effects even for high density two-terminal memory cell arrays.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 20, 2018
    Assignee: CROSSBAR, INC.
    Inventors: Lin Shih Liu, Tianhong Yan, Sung Hyun Jo, Sang Nguyen, Hagop Nazarian
  • Patent number: 10096362
    Abstract: A configuration bit for a switching block routing array comprising a non-volatile memory cell is provided. By way of example, the configuration bit and switching block routing array can be utilized for a field programmable gate array, or other suitable circuit(s), integrated circuit(s), application specific integrated circuit(s), electronic device or the like. The configuration bit can comprise a switch that selectively connects or disconnects a node of the switching block routing array. A non-volatile memory cell connected to the switch can be utilized to activate or deactivate the switch. In one or more embodiments, the non-volatile memory cell can comprise a volatile resistance switching device connected in serial to a gate node of the switch, configured to trap charge at the gate node to activate the switch, or release the charge at the gate node to deactivate the switch.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 9, 2018
    Assignee: CROSSBAR, INC.
    Inventors: Hagop Nazarian, Sung Hyun Jo
  • Patent number: 10079060
    Abstract: Providing for improved sensing of non-volatile resistive memory to achieve higher sensing margins, is described herein. The sensing can leverage current-voltage characteristics of a volatile selector device within the resistive memory. A disclosed sensing process can comprise activating the selector device with an activation voltage, and then lowering the activation voltage to a holding voltage at which the selector device deactivates for an off-state memory cell, but remains active for an on-state memory cell. Accordingly, very high on-off ratio characteristics of the selector device can be employed for sensing the resistive memory, providing sensing margins not previously achievable for non-volatile memory.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: September 18, 2018
    Assignee: CROSSBAR, INC.
    Inventors: Sung Hyun Jo, Hagop Nazarian, Lin Shih Liu
  • Patent number: 10056907
    Abstract: A method for an FPGA includes coupling a first electrode of a first resistive element to a first input voltage, coupling a second electrode of a second resistive element to a second input voltage, coupling a second electrode of the first resistive element, and a first electrode of the second resistive element to a first terminal of a first transistor element, coupling a second terminal of the first transistor element to a first terminal of a latch, coupling a second terminal of the latch to a gate of a second transistor element, and coupling a gate of the first transistor element to a latch program signal.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: August 21, 2018
    Assignee: CROSSBAR, INC.
    Inventors: Mehdi Asnaashari, Hagop Nazarian, Sang Nguyen
  • Patent number: 10050629
    Abstract: A method for an FPGA includes programming a RRAM memory array with a first bit pattern, shifting the first bit pattern to a shift register array, employing the first bit pattern in operation of the FPGA, programming a RRAM memory array with a second bit pattern concurrent the employing the bit pattern in operation of the FPGA, shifting the second bit pattern to the shift register array, and employing the second bit pattern in operation of the FPGA.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: August 14, 2018
    Assignee: CROSSBAR, INC.
    Inventors: Mehdi Asnaashari, Hagop Nazarian
  • Publication number: 20180211704
    Abstract: A retainer node circuit is provided that can retain state information of a volatile circuit element (e.g., a flip-flop, latch, switch, register, etc.) of an electronic device for planned or unplanned power-down events. The retainer node circuit can include a resistive-switching memory cell that is nonvolatile, having very fast read and write performance. Coupled with power management circuitry, the retainer node circuit can be activated to receive and store a signal (e.g., bit) output by the volatile circuit element, and activated to output the stored signal. Various embodiments disclose non-volatile retention of state information for planned shut-down events as well as unplanned shut-down events. With read and write speeds in the tens of nanoseconds, sleep mode can be provided for volatile circuit elements between clock cycles of longer time-frame applications, enabling intermittent power-down events between active periods. This enables reduction in power without loss of activity for an electronic device.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Inventors: Mehdi Asnaashari, Hagop Nazarian
  • Patent number: 9934855
    Abstract: A retainer node circuit is provided that can retain state information of a volatile circuit element (e.g., a flip-flop, latch, switch, register, etc.) of an electronic device for planned or unplanned power-down events. The retainer node circuit can include a resistive-switching memory cell that is nonvolatile, having very fast read and write performance. Coupled with power management circuitry, the retainer node circuit can be activated to receive and store a signal (e.g., bit) output by the volatile circuit element, and activated to output the stored signal. Various embodiments disclose non-volatile retention of state information for planned shut-down events as well as unplanned shut-down events. With read and write speeds in the tens of nanoseconds, sleep mode can be provided for volatile circuit elements between clock cycles of longer time-frame applications, enabling intermittent power-down events between active periods. This enables reduction in power without loss of activity for an electronic device.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: April 3, 2018
    Assignee: CROSSBAR, INC.
    Inventors: Mehdi Asnaashari, Hagop Nazarian
  • Publication number: 20170330622
    Abstract: Providing for a configuration cells for junction nodes of a field programmable gate array (FPGA) is described herein. By way of example, a configuration cell can comprise non-volatile resistive switching memory to facilitate programmable storage of data as an input to a control circuit of a junction node. The control circuit can activate or deactivate a junction node of the FPGA in response to a value of the data stored in the non-volatile resistive switching memory. The control circuit can comprise an SRAM circuit for fast operation of the junction node. Moreover, the non-volatile memory of the configuration cell facilitates fast power-up of the control circuit utilizing data stored in the resistive switching memory, and minimizes power consumption associated with storing the data.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 16, 2017
    Inventors: Lin Shih Liu, Hagop Nazarian
  • Patent number: 9734011
    Abstract: Operating characteristics associated with non-volatile two-terminal memory can be modified post-fabrication, e.g., by a controller that controls the non-volatile two-terminal memory. As a result, two-terminal memory arrays included in memory devices (e.g., memory cards, solid-state drives, etc.) can be flexibly modified to provide numerous advantages over other types of non-volatile memory.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 15, 2017
    Assignee: CROSSBAR, INC.
    Inventors: Hagop Nazarian, Kuk-Hwan Kim
  • Publication number: 20170229169
    Abstract: Providing for improved sensing of non-volatile resistive memory to achieve higher sensing margins, is described herein. The sensing can leverage current-voltage characteristics of a volatile selector device within the resistive memory. A disclosed sensing process can comprise activating the selector device with an activation voltage, and then lowering the activation voltage to a holding voltage at which the selector device deactivates for an off-state memory cell, but remains active for an on-state memory cell. Accordingly, very high on-off ratio characteristics of the selector device can be employed for sensing the resistive memory, providing sensing margins not previously achievable for non-volatile memory.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 10, 2017
    Inventors: Sung Hyun Jo, Hagop Nazarian, Lin Shih Liu
  • Patent number: 9727258
    Abstract: Operating characteristics associated with NAND flash memory can be modified and/or emulated to support corresponding operating characteristics for two-terminal memory. As a result, NAND flash memory modules included in conventional NAND flash memory devices (e.g., memory cards, solid-state drives, etc.) can be replaced with two-terminal memory without substantial changes to manufacturing infrastructure associated with the manufacture of these NAND flash memory devices.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: August 8, 2017
    Assignee: CROSSBAR, INC.
    Inventors: Hagop Nazarian, Kuk-Hwan Kim
  • Patent number: 9729155
    Abstract: A method for an FPGA includes coupling a first electrode of a first resistive element to a first input voltage, coupling a second electrode of a second resistive element to a second input voltage, applying a first programming voltage to a shared node of a second electrode of the first resistive element, a first electrode of the second resistive element, and to a gate of a transistor element, and changing a resistance state of the first resistive element to a low resistance state while maintaining a resistance state of the second resistive element, when a voltage difference between the first programming voltage at the second terminal and the first input voltage at the first terminal exceeds a programming voltage associated with the first resistive element.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: August 8, 2017
    Assignee: CROSSBAR, INC.
    Inventors: Hagop Nazarian, Sang Thanh Nguyen, Tanmay Kumar
  • Patent number: 9698201
    Abstract: A high density non-volatile memory device is provided that uses one or more volatile elements. In some embodiments, the non-volatile memory device can include a resistive two-terminal selector that can be in a low resistive state or a high resistive state depending on the voltage being applied. A deep trench MOS (“metal-oxide-semiconductor”) transistor having a floating gate with small area relative to conventional devices can be provided, in addition to a capacitor or transistor acting as a capacitor. A first terminal of the capacitor can be connected to a voltage source, and the second terminal of the capacitor can be connected to the selector device. The small area floating gate of the deep trench transistor can be connected to the other side of the selector device, and a second transistor can be connected in series with the deep trench transistor.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: July 4, 2017
    Assignee: CROSSBAR, INC.
    Inventors: Hagop Nazarian, Sung Hyun Jo, Harry Yue Gee