Patents by Inventor Anh Ly

Anh Ly 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: 20150325300
    Abstract: An improved control gate decoding design for reducing disturbances during the programming of flash memory cells is disclosed. In one embodiment, a control gate line decoder is coupled to a first control gate line associated with a row of flash memory cells in a first sector and to a second control gate line associated with a row of flash memory cells in a second sector.
    Type: Application
    Filed: May 12, 2014
    Publication date: November 12, 2015
    Inventors: Jinho Kim, Anh Ly, Victor Markov
  • Publication number: 20150310922
    Abstract: An improved method and apparatus for programming advanced nanometer flash memory cells is disclosed.
    Type: Application
    Filed: July 2, 2015
    Publication date: October 29, 2015
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Publication number: 20150255165
    Abstract: Improved sensing circuits for use in low power nanometer flash memory devices are disclosed.
    Type: Application
    Filed: March 4, 2014
    Publication date: September 10, 2015
    Applicant: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Hung Quoc Nguyen, Anh Ly, Thuan Vu
  • Patent number: 9123401
    Abstract: A non-volatile memory device that includes N planes of non-volatile memory cells (where N is an integer greater than 1). Each plane of non-volatile memory cells includes a plurality of memory cells configured in rows and columns. Each of the N planes includes gate lines that extend across the rows of the memory cells therein but do not extend to others of the N planes of non-volatile memory cells. A controller is configured to divide each of a plurality of words of data into N fractional-words, and program each of the N fractional-words of each word of data into a different one of the N planes of non-volatile memory cells. The controller uses a programming current and a program time period for the programming, and can be configured to vary the programming current by a factor and inversely vary the program time period by the factor.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: September 1, 2015
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Patent number: 9092044
    Abstract: A bandgap voltage generating circuit for generating a bandgap voltage has an operational amplifier that has two inputs and an output. A current mirror circuit has at least two parallel current paths. Each of the current paths is controlled by the output from the operational amplifier. One of the current paths is coupled to one of the two inputs to the operational amplifier. A resistor divide circuit is connected to the other current path. The resistor divide circuit provides the bandgap voltage of the circuit.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 28, 2015
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Patent number: 9093161
    Abstract: An improved method and apparatus for programming advanced nanometer flash memory cells is disclosed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 28, 2015
    Assignee: Sillicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Publication number: 20150003166
    Abstract: A non-volatile memory device has a charge pump for providing a programming current and an array of non-volatile memory cells. Each memory cell of the array is programmed by the programming current from the charge pump. The array of non-volatile memory cells is partitioned into a plurality of units, with each unit comprising a plurality of memory cells. An indicator memory cell is associated with each unit of non-volatile memory cells. A programming circuit programs the memory cells of each unit using the programming current, when fifty percent or less of the memory cells of each unit is to be programmed, and programs the inverse of the memory cells of each unit and the indicator memory cell associated with each unit, using the programming current, when more than fifty percent of the memory cells of each unit is to be programmed.
    Type: Application
    Filed: August 1, 2014
    Publication date: January 1, 2015
    Inventors: Hieu Van Tran, Hung Quoc Nguyen, Anh Ly, Thuan Vu
  • Patent number: 8867281
    Abstract: A hybrid charge pump and control circuit for use in a memory device is disclosed.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: October 21, 2014
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Publication number: 20140269061
    Abstract: Improved sensing circuits and improved bit line layouts for advanced nanometer flash memory devices are disclosed.
    Type: Application
    Filed: August 2, 2013
    Publication date: September 18, 2014
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen, Vipin Tiwari
  • Publication number: 20140269049
    Abstract: A hybrid charge pump and control circuit for use in a memory device is disclosed.
    Type: Application
    Filed: August 2, 2013
    Publication date: September 18, 2014
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Publication number: 20140269098
    Abstract: An improved method and apparatus for programming advanced nanometer flash memory cells is disclosed.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: Silicon Storage Technology, Inc.
    Inventors: Hieu Van TRAN, Anh LY, Thuan VU, Hung Quoc NGUYEN
  • Publication number: 20140282348
    Abstract: Improved PMOS and NMOS transistor designs for sensing circuitry use in advanced nanometer flash memory devices are disclosed.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Hung Quoc NGUYEN, Hieu Van TRAN, Hung Thanh NGUYEN, Anh LY, Thuan VU
  • Patent number: 8836411
    Abstract: Digital multilevel memory systems and methods include a charge pump for generating regulated high voltages for various memory operations. The charge pump may include a plurality of pump stages. Aspects of exemplary systems may include charge pumps that performs orderly charging and discharging at low voltage operation conditions. Additional aspects may include features that enable state by state pumping, for example, circuitry that avoids cascaded short circuits among pump stages. Each pump stage may also include circuitry that discharges its nodes, such as via self-discharge through associated pump interconnection(s). Further aspects may also include features that: assist power-up in the various pump stages, double voltage, shift high voltage levels, provide anti-parallel circuit configurations, and/or enable buffering or precharging features, such as self-buffering and self-precharging circuitry.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: September 16, 2014
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Sang Thanh Nguyen, Nasrin Jaffari, Hung Quoc Nguyen, Anh Ly
  • Publication number: 20140226409
    Abstract: An integrated circuit die has a first die pad for receiving a first voltage and a second die pad for receiving a second voltage. The second voltage is less than the first voltage and is generated by a voltage regulator that receives the first voltage. A first circuit which is operable at the first voltage is in the integrated circuit die. A second circuit which is operable at the second voltage is in the integrated circuit die and is connected to the second die pad. The voltage regulator is enabled by a controller.
    Type: Application
    Filed: April 21, 2014
    Publication date: August 14, 2014
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Patent number: 8804429
    Abstract: A non-volatile memory device has a charge pump for providing a programming current and an array of non-volatile memory cells. Each memory cell of the array is programmed by the programming current from the charge pump. The array of non-volatile memory cells is partitioned into a plurality of units, with each unit comprising a plurality of memory cells. An indicator memory cell is associated with each unit of non-volatile memory cells. A programming circuit programs the memory cells of each unit using the programming current, when fifty percent or less of the memory cells of each unit is to be programmed, and programs the inverse of the memory cells of each unit and the indicator memory cell associated with each unit, using the programming current, when more than fifty percent of the memory cells of each unit is to be programmed.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: August 12, 2014
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Hung Quoc Nguyen, Anh Ly, Thuan Vu
  • Patent number: 8705282
    Abstract: An integrated circuit die has a first die pad for receiving a first voltage and a second die pad for receiving a second voltage. The second voltage is less than the first voltage. A first circuit which is operable at the first voltage is in the integrated circuit die. A second circuit which is operable at the second voltage is in the integrated circuit die and is connected to the second die pad. A circuit that detects current flow from the second die pad is in the integrated circuit die. A switch is interposed between the first die pad and the first circuit to disconnect the first die pad from the first circuit in response to current flow detected by the circuit for detecting current flow.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: April 22, 2014
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Publication number: 20140104965
    Abstract: A non-volatile memory device that includes N planes of non-volatile memory cells (where N is an integer greater than 1). Each plane of non-volatile memory cells includes a plurality of memory cells configured in rows and columns. Each of the N planes includes gate lines that extend across the rows of the memory cells therein but do not extend to others of the N planes of non-volatile memory cells. A controller is configured to divide each of a plurality of words of data into N fractional-words, and program each of the N fractional-words of each word of data into a different one of the N planes of non-volatile memory cells. The controller uses a programming current and a program time period for the programming, and can be configured to vary the programming current by a factor and inversely vary the program time period by the factor.
    Type: Application
    Filed: October 15, 2012
    Publication date: April 17, 2014
    Inventors: Hieu Van Tran, Anh Ly, Thuan Vu, Hung Quoc Nguyen
  • Patent number: 8674749
    Abstract: A digital multilevel memory system includes a charge pump and a voltage regulator for generating regulated high voltages for various memory operations. The charge pump may include a plurality of boost circuits to boost the output of the charge pump during a fast start up. Afterwards, the boost circuits are disabled to allow the charge pump to generate high voltages without boosting. The boost circuits may be successively enabled to boost the voltage. The boost circuits may be loadless. The voltage regulator may operate in an open loop and may include a resistive divider as a reference voltage for regulating the high voltage from the charge pump. The charge pump may include spread spectrum pump clocking to reduce electromagnetic inference for capacitor or inductor on-chip charge pumping.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: March 18, 2014
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Sang Thanh Nguyen, Anh Ly, Hung Q. Nguyen, Wingfu AAron Lau, Nasrin Jaffari, Thuan Trong Vu, Vishal Sarin, Loc B. Hoang
  • Patent number: 8497667
    Abstract: A digital multilevel memory system includes a charge pump and a voltage regulator for generating regulated high voltages for various memory operations. The charge pump may include a plurality of boost circuits to boost the output of the charge pump during a fast start up. Afterwards, the boost circuits are disabled to allow the charge pump to generate high voltages without boosting. The boost circuits may be successively enabled to boost the voltage. The boost circuits may be loadless. The voltage regulator may operate in an open loop and may include a resistive divider as a reference voltage for regulating the high voltage from the charge pump. The charge pump may include spread spectrum pump clocking to reduce electromagnetic inference for capacitor or inductor on-chip charge pumping.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: July 30, 2013
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Sang Thanh Nguyen, Anh Ly, Hung Q. Nguyen, Wingfu Aaron Lau, Nasrin Jaffari, Thuan Trong Vu, Vishal Sarin, Loc B. Hoang
  • Publication number: 20130187707
    Abstract: Digital multilevel memory systems and methods include a charge pump for generating regulated high voltages for various memory operations. The charge pump may include a plurality of pump stages. Aspects of exemplary systems may include charge pumps that performs orderly charging and discharging at low voltage operation conditions. Additional aspects may include features that enable state by state pumping, for example, circuitry that avoids cascaded short circuits among pump stages. Each pump stage may also include circuitry that discharges its nodes, such as via self-discharge through associated pump interconnection(s). Further aspects may also include features that: assist power-up in the various pump stages, double voltage, shift high voltage levels, provide anti-parallel circuit configurations, and/or enable buffering or precharging features, such as self-buffering and self-precharging circuitry.
    Type: Application
    Filed: December 24, 2012
    Publication date: July 25, 2013
    Applicant: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Sang Thanh Nguyen, Nasrin Jaffari, Hung Quoc Nguyen, Anh Ly