Patents by Inventor Jacob T. Williams

Jacob T. Williams 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: 11289144
    Abstract: A non-volatile memory includes virtual ground circuitry configured to generate a virtual ground voltage at a virtual ground node, a memory array of memory cells in which each memory cell includes a select transistor and a storage element and is coupled to a first column line of a plurality of first column lines; and a first decoder configured to select a set of first column lines for a memory write operation to a selected set of the memory cells. The non-volatile memory also includes write circuitry configured to receive a write value for storage into the selected set of memory cells, and a first column line multiplexer configured to, during the memory write operation, couple each selected first column line of the set of first column lines to the write circuitry, and couple each unselected first column line of the plurality of first column lines to the virtual ground node.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: March 29, 2022
    Assignee: NXP USA, Inc.
    Inventors: Jon Scott Choy, Karthik Ramanan, Padmaraj Sanjeevarao, Jacob T. Williams
  • Patent number: 11250898
    Abstract: As disclosed herein, a memory includes an array of resistive memory cells and a voltage regulator circuit that provides a regulated voltage based on a circuit with a replica resistive storage element. The regulated voltage is applied to a mux transistor of a multiplexer of a column decoder that is used to select a particular column line of a memory array from a set of column lines to provide the proper voltage to the memory cell during a write operation to the memory cell.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: February 15, 2022
    Assignee: NXP USA, INC.
    Inventors: Padmaraj Sanjeevarao, Jacob T. Williams, Karthik Ramanan, Jon Scott Choy
  • Publication number: 20220020411
    Abstract: A memory includes an array of resistive memory cells and circuitry for setting a write parameter for improving write effectiveness to the cells of the memory array. The circuitry performs a write parameter setting routine that determines a midpoint resistance of a memory state of cells of the array and determines a write efficiency of a weak write operation to cells of the array. Based on the determined midpoint resistance and the determined write efficiency, the circuit sets a write parameter level for subsequent writes to cells of the array.
    Type: Application
    Filed: July 20, 2020
    Publication date: January 20, 2022
    Inventors: Richard Eguchi, Anirban Roy, Jacob T. Williams, Melvin Guison Mangibin
  • Patent number: 11170849
    Abstract: A memory includes a plurality of word line drivers with each driver controlling the voltage of a word line and the voltage of a select line during a memory operation. The driver operates to couple the select line to a first voltage setting terminal when the word line is asserted and couple the select line to a second voltage setting terminal when the word line is not asserted.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: November 9, 2021
    Assignee: NXP USA, INC.
    Inventors: Jon Scott Choy, Padmaraj Sanjeevarao, Jacob T. Williams
  • Publication number: 20210319819
    Abstract: As disclosed herein, a memory includes an array of resistive memory cells and a voltage regulator circuit that provides a regulated voltage based on a circuit with a replica resistive storage element. The regulated voltage is applied to a mux transistor of a multiplexer of a column decoder that is used to select a particular column line of a memory array from a set of column lines to provide the proper voltage to the memory cell during a write operation to the memory cell.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 14, 2021
    Inventors: Padmaraj Sanjeevarao, Jacob T. Williams, Karthik Ramanan, Jon Scott Choy
  • Patent number: 11145382
    Abstract: A leakage measuring circuit includes a bias input node control circuit and provides a signal indicative of a leakage current through the bias input node. The bias input node control circuit includes a first input to receive an indication of a reference voltage, a second input to receive an indication of a voltage of the bias input node, and an output to bias the bias input node at the reference voltage based on a relationship between the first and second input. A well voltage bias circuit provides a well bias voltage and includes a well bias control circuit including a first input to receive the signal indicative of the leakage current, a second input to receive a signal indicative of a reference leakage current value, and an output for controlling the well bias voltage based on a relationship between the first and second input of the well bias control circuit.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: October 12, 2021
    Assignee: NXP USA, Inc.
    Inventors: Karthik Ramanan, Jon Scott Choy, Jacob T. Williams
  • Publication number: 20200363116
    Abstract: An apparatus for cryostorage and manipulation of a plurality of container units includes a cryochamber having a cryo-access port. The cryochamber is electrically cooled at cryogenic temperatures. A unit holder is located inside the cryochamber and is configured to hold a plurality of container units. A user access area is provided for selectively permitting access to a chosen container unit by an authenticated user who has been authenticated by the apparatus. A motive grasper is provided for selectively removing the chosen container unit from the cryochamber through the cryo-access port, and selectively placing the chosen container unit into the user access area.
    Type: Application
    Filed: May 11, 2020
    Publication date: November 19, 2020
    Inventors: Gil Bradford Van Bokkelen, Rakesh Ramachandran, Christopher Robert Bruns, Christopher John Hayes, John A. Corey, Troy M. Coolidge, Bruce E. Frohman, Joseph Gordon, Thomas R. Ruth, Jacob T. Williams, Gregory E. Kramer, Nathan A. Abel, David J. Copeland, Matthew R. Gill, Steven F. Shane
  • Patent number: 10796741
    Abstract: A word line regulator provides a write word line voltage for an asserted word line and includes a write replica circuit, a reference current path, and a regulator circuit. The write replica circuit is a replica of a write path for writing from a low to high resistance value of a resistive memory element of a memory cell. The word line regulator regulates the word line voltage at a value during the write operation of a low to high resistance value such that a select transistor of the memory cell is used as a source follower to regulate a first node of a resistive element of the memory cell being written. The first node is at a higher write voltage than a second node of the resistive element during the write operation, and the first node is located in a write path between the select transistor and the second node.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 6, 2020
    Assignee: NXP USA, Inc.
    Inventors: Jacob T. Williams, Jon Scott Choy, Karthik Ramanan
  • Patent number: 9397201
    Abstract: A method of forming a flash memory cell includes forming a first hard mask and a second hard mask on a substrate. A select gate is formed as a spacer around the first hard mask. A charge storage layer is formed over the first and second hard masks and the select gate. A control gate is formed as a spacer around the second hard mask. A recess in the control gate is filled with a dielectric material. The recess is formed between a curved sidewall of the control gate and a sidewall of the charge storage layer directly adjacent the curved sidewall of the control gate.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: July 19, 2016
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Jacob T. Williams, Cheong Min Hong, Sung-Taeg Kang, David G. Kolar, Jane A. Yater
  • Patent number: 9219167
    Abstract: A method of forming a flash memory cell includes forming a first hard mask and a second hard mask on a substrate. A select gate is formed as a spacer around the first hard mask. A charge storage layer is formed over the first and second hard masks and the select gate. A control gate is formed as a spacer around the second hard mask. A recess in the control gate is filled with a dielectric material. The recess is formed between a curved sidewall of the control gate and a sidewall of the charge storage layer directly adjacent the curved sidewall of the control gate.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: December 22, 2015
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Jacob T. Williams, Cheong Min Hong, Sung-Taeg Kang, David G. Kolar, Jane A. Yater
  • Patent number: 9209810
    Abstract: An output circuit, between a first power supply terminal and a second power supply terminal, receives a first logic signal that switches between a first logic state based on a voltage at the first power supply terminal and a second logic state based on a voltage at the second power supply terminal and provides a second logic signal, complementary to the first logic signal. A level translator is in a second power supply domain configured to have a second voltage differential between a third power supply terminal and a fourth power supply terminal, wherein the second voltage differential is greater than the first voltage differential. The level translator is designed so that it may be implemented using a subset of the transistors that have the shortest channel length and narrowest channel width.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: December 8, 2015
    Assignee: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Jacob T. Williams, Jeffrey C. Cunningham, Karthik Ramanan
  • Patent number: 8829964
    Abstract: A compensated hysteresis circuit comprises a hysteresis circuit including an output node and a first control transistor. The first control transistor provides feedback to the hysteresis circuit. A temperature and voltage compensation circuit includes a self-biasing threshold control circuit including an input coupled to the output node of the hysteresis circuit, and a first trim transistor coupled between the first control transistor of the hysteresis circuit and the self-biasing threshold control circuit.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 9, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Jacob T. Williams, Jeffrey C. Cunningham, Gilles J. Muller, Karthik Ramanan