Patents by Inventor Stephen Tang

Stephen Tang 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: 20160365141
    Abstract: Example subject matter disclosed herein relates to apparatuses and/or devices, and/or various methods for use therein, in which an application of an electric potential to a circuit may be initiated and subsequently changed in response to a determination that a snapback event has occurred in a circuit. For example, a circuit may comprise a memory cell that may experience a snapback event as a result of an applied electric potential. In certain example implementations, a sense circuit may be provided which is responsive to a snapback event occurring in a memory cell to generate a feed back signal to initiate a change in an electric potential applied to the memory cell.
    Type: Application
    Filed: June 9, 2016
    Publication date: December 15, 2016
    Inventors: Jeremy Hirst, Hernan Castro, Stephen Tang
  • Patent number: 9484534
    Abstract: Embodiments disclosed herein may relate to electrically conductive vias in cross-point memory array devices. In an embodiment, the vias may be formed using a lithographic operation also utilized to form electrically conductive lines in a first electrode layer of the cross-point memory array device.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: November 1, 2016
    Assignee: Micron Technology, Inc.
    Inventor: Stephen Tang
  • Patent number: 9390768
    Abstract: Example subject matter disclosed herein relates to apparatuses and/or devices, and/or various methods for use therein, in which an application of an electric potential to a circuit may be initiated and subsequently changed in response to a determination that a snapback event has occurred in a circuit. For example, a circuit may comprise a memory cell that may experience a snapback event as a result of an applied electric potential. In certain example implementations, a sense circuit may be provided which is responsive to a snapback event occurring in a memory cell to generate a feed back signal to initiate a change in an electric potential applied to the memory cell.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 12, 2016
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Jeremy Hirst, Hernan Castro, Stephen Tang
  • Publication number: 20150166323
    Abstract: A food dispensing system comprises an outer structure and a force-providing mechanism. The outer structure is adapted to enclose at least a portion of a pouch system that contains a food product, the pouch system having a squeezable element that holds the food product and a spout element for dispensing the food product. The outer structure is further adapted to allow a user to access the spout element of the pouch system, and to prevent the user from squeezing the squeezable element. The force-providing mechanism is adapted to exert a force on the squeezable element.
    Type: Application
    Filed: December 8, 2014
    Publication date: June 18, 2015
    Inventors: Nin Lei TANG, William Stephen TANG
  • Publication number: 20140334237
    Abstract: Example subject matter disclosed herein relates to apparatuses and/or devices, and/or various methods for use therein, in which an application of an electric potential to a circuit may be initiated and subsequently changed in response to a determination that a snapback event has occurred in a circuit. For example, a circuit may comprise a memory cell that may experience a snapback event as a result of an applied electric potential. In certain example implementations, a sense circuit may be provided which is responsive to a snapback event occurring in a memory cell to generate a feed back signal to initiate a change in an electric potential applied to the memory cell.
    Type: Application
    Filed: June 30, 2014
    Publication date: November 13, 2014
    Inventors: Jeremy Hirst, Hernan Castro, Stephen Tang
  • Patent number: 8767482
    Abstract: Example subject matter disclosed herein relates to apparatuses and/or devices, and/or various methods for use therein, in which an application of an electric potential to a circuit may be initiated and subsequently changed in response to a determination that a snapback event has occurred in a circuit. For example, a circuit may comprise a memory cell that may experience a snapback event as a result of an applied electric potential. In certain example implementations, a sense circuit may be provided which is responsive to a snapback event occurring in a memory cell to generate a feed back signal to initiate a change in an electric potential applied to the memory cell.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: July 1, 2014
    Assignee: Micron Technology, Inc.
    Inventors: Jeremy Hirst, Hernan Castro, Stephen Tang
  • Publication number: 20130235655
    Abstract: Embodiments disclosed herein may relate to electrically conductive vias in cross-point memory array devices. In an embodiment, the vias may be formed using a lithographic operation also utilized to form electrically conductive lines in a first electrode layer of the cross-point memory array device.
    Type: Application
    Filed: April 25, 2013
    Publication date: September 12, 2013
    Applicant: Micron Technology, Inc.
    Inventor: Stephen Tang
  • Patent number: 8431446
    Abstract: Embodiments disclosed herein may relate to electrically conductive vias in cross-point memory array devices. In an embodiment, the vias may be formed using a lithographic operation also utilized to form electrically conductive lines in a first electrode layer of the cross-point memory array device.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: April 30, 2013
    Assignee: MicronTechnology, Inc
    Inventor: Stephen Tang
  • Publication number: 20130044539
    Abstract: Example subject matter disclosed herein relates to apparatuses and/or devices, and/or various methods for use therein, in which an application of an electric potential to a circuit may be initiated and subsequently changed in response to a determination that a snapback event has occurred in a circuit. For example, a circuit may comprise a memory cell that may experience a snapback event as a result of an applied electric potential. In certain example implementations, a sense circuit may be provided which is responsive to a snapback event occurring in a memory cell to generate a feed back signal to initiate a change in an electric potential applied to the memory cell.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 21, 2013
    Applicant: Micron Technology, Inc.
    Inventors: Jeremy Hirst, Hernan Castro, Stephen Tang
  • Patent number: 8374022
    Abstract: A phase change memory using an ovonic threshold switch selection device may be programmed from one state to another by first turning on the ovonic threshold switch. After the voltage across the cell has fallen, the cell may then be biased to program the cell to the desired state.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: February 12, 2013
    Assignee: Intel Corporation
    Inventors: Timothy C. Langtry, Richard Dodge, Hernan Castro, Derchang Kau, Stephen Tang, Jeremy Hirst
  • Patent number: 8320172
    Abstract: Embodiments disclosed herein may relate to controlling a discharge of a capacitive element coupled to a phase change memory cell to produce a specified state in the phase change memory cell.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: November 27, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Hernan A. Castro, Jeremy Hirst, Stephen Tang
  • Publication number: 20120026786
    Abstract: Embodiments disclosed herein may relate to controlling a discharge of a capacitive element coupled to a phase change memory cell to produce a specified state in the phase change memory cell.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 2, 2012
    Inventors: Hernan A. Castro, Jeremy Hirst, Stephen Tang
  • Patent number: 8031516
    Abstract: A memory cell exhibiting threshold switch behavior, such as a phase change memory, can be programmed in a way that eliminates the need for a separate post-programming verification cycle. In particular, a circuit can be used to apply the programming pulse to a cell in a way that determines whether the cell has reached the desired threshold voltage. If the cell has not reached the desired threshold voltage, it receives another programming pulse. If it has, it does not receive another programming pulse. Thus, by applying a voltage across the cell that never exceeds the threshold voltage of the cell, the need for a separate verification cycle can be eliminated in some embodiments.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 4, 2011
    Inventor: Stephen Tang
  • Patent number: 7986549
    Abstract: An apparatus and a method for refreshing or toggling a phase-change memory cell are described. The apparatus includes a voltage ramp element coupled to the phase-change memory cell and provided for controlling voltage across the phase-change memory cell. A current control element is coupled to the phase-change memory cell and provided for controlling current through the phase-change memory cell. A current sensor element is coupled to the phase-change memory cell. A write-back timer and control element is coupled to the current sensor element and to the current control element.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: July 26, 2011
    Assignee: Micron Technology, Inc.
    Inventors: Stephen Tang, DerChang Kau
  • Publication number: 20110149628
    Abstract: A phase change memory using an ovonic threshold switch selection device may be programmed from one state to another by first turning on the ovonic threshold switch. After the voltage across the cell has fallen, the cell may then be biased to program the cell to the desired state.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Inventors: Timothy C. Langtry, Richard Dodge, Hernan Castro, Derchang Kau, Stephen Tang, Jeremy Hirst
  • Patent number: 7876607
    Abstract: Using the voltage across a threshold switching cell to sense the state of the cell, rather than sensing current through the cell, may result in a faster read. In some embodiments, current consumption during reading of conductive states may be reduced by using a capacitor coupled across the cell.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: January 25, 2011
    Inventor: Stephen Tang
  • Publication number: 20100149857
    Abstract: Using the voltage across a threshold switching cell to sense the state of the cell, rather than sensing current through the cell, may result in a faster read. In some embodiments, current consumption during reading of conductive states may be reduced by using a capacitor coupled across the cell.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Inventor: Stephen Tang
  • Publication number: 20100149856
    Abstract: A memory cell exhibiting threshold switch behavior, such as a phase change memory, can be programmed in a way that eliminates the need for a separate post-programming verification cycle. In particular, a circuit can be used to apply the programming pulse to a cell in a way that determines whether the cell has reached the desired threshold voltage. If the cell has not reached the desired threshold voltage, it receives another programming pulse. If it has, it does not receive another programming pulse. Thus, by applying a voltage across the cell that never exceeds the threshold voltage of the cell, the need for a separate verification cycle can be eliminated in some embodiments.
    Type: Application
    Filed: December 12, 2008
    Publication date: June 17, 2010
    Inventor: Stephen Tang
  • Publication number: 20070130485
    Abstract: A system may include acquisition of a supply voltage information representing past supply voltages supplied to an electrical component, acquisition of a temperature information representing past temperatures of the electrical component, and control of a performance characteristic of the electrical component based on the supply voltage information and the temperature information. Some embodiments may further include determination of a reliability margin based on the supply voltage information, the temperature information, and on a reliability specification of the electrical component, and change of the performance characteristic based on the reliability margin.
    Type: Application
    Filed: December 6, 2005
    Publication date: June 7, 2007
    Inventors: Siva Narendra, James Tschanz, Vivek De, Stephen Tang
  • Publication number: 20070076463
    Abstract: According to embodiments of the present invention, a one-time programmable (OTP) cell includes an access transistor coupled to an antifuse transistor. In on embodiment, access transistor has a gate oxide thickness that is greater than the gate oxide thickness of the antifuse transistor so that if the antifuse transistor is programmed, the voltage felt across the gate/drain junction of the access transistor is insufficient to cause the gate oxide of the access transistor to break down. The dual gate oxide OTP cell may be used in an array in which only one OTP cell is programmed at a time. The dual gate oxide OTP cell also may be used in an array in which several OTP cells are programmed simultaneously.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Inventors: Ali Keshavarzi, Fabrice Paillet, Muhammad Khellah, Dinesh Somasekhar, Yibin Ye, Stephen Tang, Mohsen Alavi, Vivek De