Patents by Inventor Hieu Pham

Hieu Pham 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: 20240112003
    Abstract: Numerous examples are disclosed of output circuitry and associated methods in an artificial neural network. In one example, a system comprises an array of non-volatile memory cells arranged into rows and columns, an output block to convert current from columns of the array into a first digital output during a first time period and a second digital output during a second time period, a first output register to store the first digital output during the first time period and to output the stored first digital output during the second time period, and a second output register to store the second digital output during the second time period and to output the stored second digital output during a third time period.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 4, 2024
    Inventors: HIEU VAN TRAN, STEPHEN TRINH, STANLEY HONG, THUAN VU, NGHIA LE, HIEN PHAM
  • Publication number: 20240104357
    Abstract: Numerous examples are disclosed of input circuitry and associated methods in an artificial neural network. In one example, a system comprises a plurality of address decoders to receive an address and output a plurality of row enabling signals in response to the address; a first plurality of registers to store, sequentially, activation data in response to the plurality of row enabling signals; and a second plurality of registers to store, in parallel, activation data received from the first plurality of registers.
    Type: Application
    Filed: December 8, 2022
    Publication date: March 28, 2024
    Inventors: Hieu Van Tran, Stephen Trinh, Stanley Hong, Thuan Vu, Nghia Le, Hien Pham
  • Publication number: 20240095509
    Abstract: In one example, a neural network device comprises a first plurality of synapses configured to receive a first plurality of inputs and to generate therefrom a first plurality of outputs, wherein the first plurality of synapses comprises a plurality of memory cells, each of the plurality of memory cells configured to store a weight value corresponding to a number of electrons on its floating gate and the plurality of memory cells are configured to generate the first plurality of outputs based upon the first plurality of inputs and the stored weight values.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: Hieu Van Tran, STANLEY HONG, ANH LY, THUAN VU, HIEN PHAM, KHA NGUYEN, HAN TRAN
  • Publication number: 20240098991
    Abstract: In one example, a system comprises an array comprising selected memory cells; an input block configured to apply, to each selected memory cell, a series of input signals to a terminal of the selected memory cell in response to a series of input bits; and an output block for generating an output of the selected memory cells, the output block comprising an analog-to-digital converter to convert current from the selected memory cells into a digital value, a shifter, an adder, and a register; wherein the shifter, adder, and register are configured to receive a series of digital values in response to the series of input bits, shift each digital value in the series of digital values based on a bit location of an input bit within the series of input bits, and add results of the shift operations to generate an output indicating values stored in the selected memory cells.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: Hieu Van Tran, Thuan Vu, Stephen Trinh, Stanley Hong, Toan Le, Nghia Le, Hien Pham
  • Publication number: 20240095508
    Abstract: In one example, a system comprises a vector-by-matrix multiplication array comprising non-volatile memory cells organized into rows and columns; a plurality of word lines coupled respectively to rows of the vector-by-matrix multiplication array; and a word line driver coupled to the plurality of word lines, the word line driver comprising a plurality of select transistors coupled to a common control line and the plurality of word lines, and a plurality of bias transistors coupled to the plurality of select transistors and capable of providing a bias voltage to a single select transistor in the plurality of select transistors or to all of plurality of select transistors in response to control signals.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: HIEU VAN TRAN, STANLEY HONG, AHN LY, THUAN VU, HIEN PHAM, KHA NGUYEN, HAN TRAN
  • Patent number: 11855259
    Abstract: The present invention relates to a lithium secondary battery electrolyte and a lithium secondary battery including the same and, more specifically, to a flame retardant or nonflammable lithium secondary battery electrolyte having excellent stability even at a high voltage and a lithium secondary battery including the same.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: December 26, 2023
    Assignees: RENEWABLE ENERGY PLATFORM CO., LTD., THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY
    Inventors: Hee Cheol Kim, Younggil Kwon, Eui Hyeong Hwang, Ji Hee Jang, Sang Ho Lee, Seung Wan Song, Quang Hieu Pham
  • Publication number: 20230325751
    Abstract: A method for developing or improving a process for producing a product from a material comprising steps of acquiring the composition for at least two slurries as raw material data (17) for the CMP based manufacturing process and its relevant parameters (2) by using a Data Collecting computer (9); physically performing specific method steps of a CMP process; measuring relevant parameters of the used slurries and the physically performed CMP process to determine the CMP process performance by using the Data Collecting computer (9); analyzing the measured data about the relevant parameters with a specific software performed on an Analyzing computer (11) by creating for the software and applying with it a predictive model using Machine Learning to understand the intercorrelation of the different parameters and using the results to improve the CMP process performance and the resulting product quality of the CMP based manufacturing process.
    Type: Application
    Filed: May 18, 2022
    Publication date: October 12, 2023
    Applicant: Versum Materials US, LLC
    Inventors: Cesar Clavero, Vid Gopal, Ryan Clarke, Esmeralda Yitamben, Hieu Pham, Anupama Mallikarjunan, Rung-Je Yang, Shirley Lin, Hongjun Zhou, Joseph Rose, Krishna Murella, Lu Gan
  • Publication number: 20230121392
    Abstract: Solid state sources offer potential advantages including high brightness, electricity savings, long lifetime, and higher color rendering capability, when compared to incandescent and fluorescent light sources. To date however, many of these advantages have not been borne out in providing white LED lamps for general lighting applications. The inventors have established that surface recombination through non-radiative processes results in highly inefficient electrical injection. Exploiting in-situ grown shells in combination with dot-in-a-wire LED structures to overcome this limitation through the effective lateral confinement offered by the shell, the inventors have demonstrated core-shell dot-in-a-wire LEDs with significantly improved electrical injection efficiency and output power, providing phosphor-free InGaN/GaN nanowire white LEDs operating with milliwatt output power and color rendering indices of 95-98.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 20, 2023
    Inventors: Zetian MI, Hieu Pham Trung NGUYEN, Songrui ZHAO
  • Patent number: 11502219
    Abstract: Solid state sources offers potential advantages including high brightness, electricity savings, long lifetime, and higher color rendering capability, when compared to incandescent and fluorescent light sources. To date however, many of these advantages, however, have not been borne out in providing white LED lamps for general lighting applications. The inventors have established that surface recombination through non-radiative processes results in highly inefficient electrical injection. Exploiting in-situ grown shells in combination with dot-in-a-wire LED structures to overcome this limitation through the effective lateral confinement offered by the shell the inventors have demonstrated core-shell dot-in-a-wire LEDs, with significantly improved electrical injection efficiency and output power, providing phosphor-free InGaN/GaN nanowire white LEDs operating with milliwatt output power and color rendering indices of 95-98.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: November 15, 2022
    Assignee: The Royal Institution for the Advancement of Learning/McGill University
    Inventors: Zetian Mi, Hieu Pham Trung Nguyen, Songrui Zhao
  • Patent number: 11227631
    Abstract: A self servo-write process in performed on two or more recording surfaces simultaneously. In a dual-stage servo system, a first fine positioning servo system that includes a first microactuator independently controls the position of a first read/write head over a first recording surface of a hard disk drive, while a second fine positioning servo system that includes a second microactuator independently controls the position of a second read/write head over a second recording surface of the hard disk drive.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: January 18, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Thorsten Schmidt, Gary W. Calfee, Gabor Szita, Hieu Pham
  • Publication number: 20210135285
    Abstract: The present invention relates to a lithium secondary battery electrolyte and a lithium secondary battery including the same and, more specifically, to a flame retardant or nonflammable lithium secondary battery electrolyte having excellent stability even at a high voltage and a lithium secondary battery including the same.
    Type: Application
    Filed: July 31, 2018
    Publication date: May 6, 2021
    Inventors: HEE CHEOL KIM, YOUNGGIL KWON, EUI HYEONG HWANG, JI HEE JANG, SANG HO LEE, SEUNG WAN SONG, QUANG HIEU PHAM
  • Publication number: 20200286513
    Abstract: A self servo-write process in performed on two or more recording surfaces simultaneously. In a dual-stage servo system, a first fine positioning servo system that includes a first microactuator independently controls the position of a first read/write head over a first recording surface of a hard disk drive, while a second fine positioning servo system that includes a second microactuator independently controls the position of a second read/write head over a second recording surface of the hard disk drive.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Inventors: Thorsten SCHMIDT, Gary W. CALFEE, Gabor SZITA, Hieu PHAM
  • Patent number: 10665257
    Abstract: A self servo-write process in performed on two or more recording surfaces simultaneously. In a dual-stage servo system, a first fine positioning servo system that includes a first microactuator independently controls the position of a first read/write head over a first recording surface of a hard disk drive, while a second fine positioning servo system that includes a second microactuator independently controls the position of a second read/write head over a second recording surface of the hard disk drive.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 26, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES AND STORAGE CORPORATION
    Inventors: Thorsten Schmidt, Gary W. Calfee, Gabor Szita, Hieu Pham
  • Publication number: 20190279675
    Abstract: A self servo-write process in performed on two or more recording surfaces simultaneously. In a dual-stage servo system, a first fine positioning servo system that includes a first microactuator independently controls the position of a first read/write head over a first recording surface of a hard disk drive, while a second fine positioning servo system that includes a second microactuator independently controls the position of a second read/write head over a second recording surface of the hard disk drive.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 12, 2019
    Inventors: Thorsten SCHMIDT, Gary W. CALFEE, Gabor SZITA, Hieu PHAM
  • Publication number: 20170084643
    Abstract: Embodiments provided herein describe storage capacitors for active matrix displays and methods for making such capacitors. A substrate is provided. A bottom electrode is formed above the substrate. A dielectric layer is formed above the bottom electrode. A top electrode is formed above the dielectric layer. A layer including an amorphous or crystalline material may be formed between the dielectric layer and the top electrode. The bottom electrode may have a thickness of at least 1000 ?, be formed in a gaseous environment of at least 95% argon, and/or not undergo an annealing process before the formation of a dielectric layer above the bottom electrode. The dielectric layer may include a nitrided high-k dielectric material.
    Type: Application
    Filed: September 14, 2016
    Publication date: March 23, 2017
    Applicant: Intermolecular, Inc.
    Inventors: Gaurav Saraf, Howard Lin, Prashant Phatak, Sang Lee, Minh Huu Le, Hieu Pham, Congwen Yi
  • Publication number: 20160027961
    Abstract: Solid state sources offers potential advantages including high brightness, electricity savings, long lifetime, and higher color rendering capability, when compared to incandescent and fluorescent light sources. To date however, many of these advantages, however, have not been borne out in providing white LED lamps for general lighting applications. The inventors have established that surface recombination through non-radiative processes results in highly inefficient electrical injection. Exploiting in-situ grown shells in combination with dot-in-a-wire LED structures to overcome this limitation through the effective lateral confinement offered by the shell the inventors have demonstrated core-shell dot-in-a-wire LEDs, with significantly improved electrical injection efficiency and output power, providing phosphor-free InGaN/GaN nanowire white LEDs operating with milliwatt output power and color rendering indices of 95-98.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 28, 2016
    Applicant: THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING/MCGILL UNIVERSITY
    Inventors: Zetian MI, Hieu Pham TRUNG, Songrui ZHAO
  • Patent number: 9246096
    Abstract: Embodiments of the invention generally relate to nonvolatile memory devices and methods for manufacturing such memory devices. The methods for forming improved memory devices, such as a ReRAM cells, provide optimized, atomic layer deposition (ALD) processes for forming a metal oxide film stack which contains at least one hard metal oxide film (e.g., metal is completely oxidized or substantially oxidized) and at least one soft metal oxide film (e.g., metal is less oxidized than hard metal oxide). The soft metal oxide film is less electrically resistive than the hard metal oxide film since the soft metal oxide film is less oxidized or more metallic than the hard metal oxide film. In one example, the hard metal oxide film is formed by an ALD process utilizing ozone as the oxidizing agent while the soft metal oxide film is formed by another ALD process utilizing water vapor as the oxidizing agent.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: January 26, 2016
    Assignees: Intermolecular, Inc., Kabushiki Kaisha Toshiba, SanDisk 3D LLC
    Inventors: Zhendong Hong, Vidyut Gopal, Imran Hashim, Randall J. Higuchi, Tim Minvielle, Hieu Pham, Takeshi Yamaguchi
  • Patent number: 9087978
    Abstract: Embodiments of the invention include nonvolatile memory elements and memory devices comprising the nonvolatile memory elements. Methods for forming the nonvolatile memory elements are also disclosed. The nonvolatile memory element comprises a first electrode layer, a second electrode layer, and a plurality of layers of an oxide disposed between the first and second electrode layers. One of the oxide layers has linear resistance and substoichiometric composition, and the other oxide layer has bistable resistance and near-stoichiometric composition. Preferably, the sum of the two oxide layer thicknesses is between about 20 ? and about 100 ?, and the oxide layer with bistable resistance has a thickness between about 25% and about 75% of the total thickness. In one embodiment, the oxide layers are formed using reactive sputtering in an atmosphere with controlled flows of argon and oxygen.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: July 21, 2015
    Assignees: Intermolecular, Inc., Kabushiki Kaisha Toshiba, SanDisk 3D LLC
    Inventors: Hieu Pham, Vidyut Gopal, Imran Hashim, Tim Minvielle, Yun Wang, Takeshi Yamaguchi, Hong Sheng Yang
  • Publication number: 20150200361
    Abstract: Embodiments of the invention include nonvolatile memory elements and memory devices comprising the nonvolatile memory elements. Methods for forming the nonvolatile memory elements are also disclosed. The nonvolatile memory element comprises a first electrode layer, a second electrode layer, and a plurality of layers of an oxide disposed between the first and second electrode layers. One of the oxide layers has linear resistance and substoichiometric composition, and the other oxide layer has bistable resistance and near-stoichiometric composition. Preferably, the sum of the two oxide layer thicknesses is between about 20 ? and about 100 ?, and the oxide layer with bistable resistance has a thickness between about 25% and about 75% of the total thickness. In one embodiment, the oxide layers are formed using reactive sputtering in an atmosphere with controlled flows of argon and oxygen.
    Type: Application
    Filed: February 10, 2015
    Publication date: July 16, 2015
    Inventors: Hieu Pham, Vidyut Gopal, Imran Hashim, Tim Minvielle, Yun Wang, Takeshi Yamaguchi, Hong Sheng Yang
  • Publication number: 20150179935
    Abstract: Embodiments of the invention generally relate to nonvolatile memory devices and methods for manufacturing such memory devices. The methods for forming improved memory devices, such as a ReRAM cells, provide optimized, atomic layer deposition (ALD) processes for forming a metal oxide film stack which contains at least one hard metal oxide film (e.g., metal is completely oxidized or substantially oxidized) and at least one soft metal oxide film (e.g., metal is less oxidized than hard metal oxide). The soft metal oxide film is less electrically resistive than the hard metal oxide film since the soft metal oxide film is less oxidized or more metallic than the hard metal oxide film. In one example, the hard metal oxide film is formed by an ALD process utilizing ozone as the oxidizing agent while the soft metal oxide film is formed by another ALD process utilizing water vapor as the oxidizing agent.
    Type: Application
    Filed: February 17, 2015
    Publication date: June 25, 2015
    Inventors: Zhendong Hong, Vidyut Gopal, Imran Hashim, Randall J. Higuchi, Tim Minvielle, Hieu Pham, Takeshi Yamaguchi