Patents by Inventor Ji Cui

Ji Cui 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: 20210220964
    Abstract: A chemical mechanical planarization apparatus includes a multi-zone platen comprising a plurality of individually controlled concentric toroids. The rotation direction, rotation speed, applied force, relative height, and temperature of each concentric toroid is individually controlled. Concentric polishing pads are affixed to an upper surface of each of the individually controlled concentric toroids. The chemical mechanical planarization apparatus includes a single central slurry source or includes individual slurry sources for each individually controlled concentric toroid.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 22, 2021
    Inventors: Ting-Hsun Chang, Hung Yen, Chi-Hsiang Shen, Fu-Ming Huang, Chun-Chieh Lin, Tsung Hsien Chang, Ji Cui, Liang-Guang Chen, Chih Hung Chen, Kei-Wei Chen
  • Patent number: 11043151
    Abstract: The invention provides a chemical-mechanical polishing composition comprising (a) an abrasive selected from the group consisting of alumina, ceria, titania, zirconia, and combinations thereof, wherein the abrasive is surface-coated with a copolymer comprising a combination of sulfonic acid monomeric units and carboxylic acid monomeric units a combination of sulfonic acid monomeric units and phosphonic acid monomeric units, (b) an oxidizing agent, and (c) water, wherein the polishing composition has a pH of about 2 to about 5. The invention further provides a method of chemically-mechanically polishing a substrate with the inventive chemical-mechanical polishing composition. Typically, the substrate comprises tungsten or cobalt and silicon oxide.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: June 22, 2021
    Assignee: CMC Materials, Inc.
    Inventors: Ji Cui, Helin Huang, Kevin P. Dockery, Pankaj K. Singh, Hung-Tsung Huang, Chih-Hsien Chien
  • Patent number: 10920107
    Abstract: The invention provides a chemical-mechanical polishing composition comprising an abrasive, a self-stopping agent, an aqueous carrier, and a cationic polymer. This invention additionally provides a method suitable for polishing a dielectric substrate.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: February 16, 2021
    Assignee: CMC Materials, Inc.
    Inventors: Alexander W. Hains, Juyeon Chang, Tina C. Li, Viet Lam, Ji Cui, Sarah Brosnan, Chul Woo Nam
  • Publication number: 20210017421
    Abstract: The invention relates to a chemical-mechanical polishing composition comprising (a) a first abrasive comprising cationically modified colloidal silica particles, (b) a second abrasive having a Mohs hardness of about 5.5 or more, (c) a cationic polymer, (d) an iron containing activator, (e) an oxidizing agent, and (f) water. The invention also relates to a method of chemically mechanically polishing a substrate, especially a substrate comprising tungsten and barrier layers (e.g., nitrides), with the polishing composition.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 21, 2021
    Inventors: William J. WARD, Matthew E. CARNES, Ji CUI, Helin HUANG
  • Publication number: 20200190361
    Abstract: The invention provides a chemical-mechanical polishing composition comprising an abrasive, a self-stopping agent, an aqueous carrier, and a cationic polymer. This invention additionally provides a method suitable for polishing a dielectric substrate.
    Type: Application
    Filed: February 21, 2020
    Publication date: June 18, 2020
    Inventors: Alexander W. Hains, Juyeon Chang, Tina C. Li, Viet Lam, Ji Cui, Sarah Brosnan, Chul Woo Nam
  • Patent number: 10639766
    Abstract: Described are materials and methods for processing (polishing or planarizing) a substrate that contains pattern dielectric material using a polishing composition (aka “slurry”) and an abrasive pad, e.g., CMP processing.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: May 5, 2020
    Assignee: Cabot Microelectronics Corporation
    Inventors: Viet Lam, Ji Cui
  • Patent number: 10619076
    Abstract: The invention provides a chemical-mechanical polishing composition comprising an abrasive, a self-stopping agent, an aqueous carrier, and optionally, a cationic polymer, and provides a method suitable for polishing a substrate.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 14, 2020
    Assignee: Cabot Microelectronics Corporation
    Inventors: Alexander W. Hains, Juyeon Chang, Tina C. Li, Viet Lam, Ji Cui, Sarah Brosnan, Chul Woo Nam
  • Patent number: 10619075
    Abstract: The invention provides a chemical-mechanical polishing composition comprising an abrasive, a self-stopping agent, an aqueous carrier, and optionally, a cationic polymer, and provides a method suitable for polishing a substrate.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: April 14, 2020
    Assignee: Cabot Microelectronics Corporation
    Inventors: Alexander W. Hains, Juyeon Chang, Tina C. Li, Viet Lam, Ji Cui, Sarah Brosnan, Chul Woo Nam
  • Patent number: 10522341
    Abstract: Described is a post-CMP cleaning solution and methods useful to remove residue from a CMP substrate or to prevent formation of residue on a surface of a CMP substrate.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: December 31, 2019
    Assignee: Cabot Microelectronics Corporation
    Inventors: Helin Huang, Ji Cui
  • Publication number: 20190211228
    Abstract: The invention provides a method of chemically-mechanically polishing a substrate comprising providing a substrate comprising a tungsten layer on a surface of the substrate and a silicon oxide layer on a surface of the substrate, providing a chemical-mechanical polishing composition comprising a tungsten layer and a silicon oxide layer using a chemical-mechanical polishing composition comprising a) surface-modified colloidal silica particles, comprising a negatively-charged group on the surface of the particles, wherein the surface-modified colloidal silica particles have a negative charge, a particle size of about 90 nm to about 350 nm, and a zeta potential of about ?20 mV to about ?70 mV at a pH of about 2, b) an iron compound, c) a stabilizing agent, and d) an aqueous carrier, and contacting the substrate with a polishing pad and the chemical mechanical polishing composition to polish the substrate.
    Type: Application
    Filed: January 9, 2018
    Publication date: July 11, 2019
    Inventors: William J. Ward, Matthew E. Carnes, Ji Cui, Kim Long
  • Publication number: 20190185716
    Abstract: The invention provides a chemical-mechanical polishing composition comprising an abrasive, a self-stopping agent, an aqueous carrier, and optionally, a cationic polymer, and provides a method suitable for polishing a substrate.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 20, 2019
    Inventors: Alexander W. HAINS, Juyeon CHANG, Tina C. LI, Viet LAM, Ji CUI, Sarah BROSNAN, Chul Woo NAM
  • Publication number: 20190100677
    Abstract: The invention provides a chemical-mechanical polishing composition comprising (a) an abrasive selected from the group consisting of alumina, ceria, titania, zirconia, and combinations thereof, wherein the abrasive is surface-coated with a copolymer comprising a combination of sulfonic acid monomeric units and carboxylic acid monomeric units a combination of sulfonic acid monomeric units and phosphonic acid monomeric units, (b) an oxidizing agent, and (c) water, wherein the polishing composition has a pH of about 2 to about 5. The invention further provides a method of chemically-mechanically polishing a substrate with the inventive chemical-mechanical polishing composition. Typically, the substrate comprises tungsten or cobalt and silicon oxide.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 4, 2019
    Inventors: Ji CUI, Helin HUANG, Kevin P. DOCKERY, Pankaj K. SINGH, Hung-Tsung HUANG, Chih-Hsien CHIEN
  • Publication number: 20180297169
    Abstract: Described are materials and methods for processing (polishing or planarizing) a substrate that contains pattern dielectric material using a polishing composition (aka “slurry”) and an abrasive pad, e.g., CMP processing.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 18, 2018
    Inventors: Viet LAM, Ji CUI
  • Publication number: 20180244956
    Abstract: The invention provides a chemical-mechanical polishing composition comprising an abrasive, a self-stopping agent, an aqueous carrier, and optionally, a cationic polymer, and provides a method suitable for polishing a substrate.
    Type: Application
    Filed: March 23, 2018
    Publication date: August 30, 2018
    Inventors: Alexander W. HAINS, Juyeon CHANG, Tina C. LI, Viet LAM, Ji CUI, Sarah BROSNAN, Chul Woo NAM
  • Patent number: 10029345
    Abstract: Described are materials and methods for processing (polishing or planarizing) a substrate that contains pattern dielectric material using a polishing composition (aka “slurry”) and an abrasive pad, e.g., CMP processing.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: July 24, 2018
    Assignee: Cabot Microelectronics Corporation
    Inventors: Viet Lam, Ji Cui
  • Publication number: 20180184900
    Abstract: The invention relates to the field of pulse diagnosis technology, more particularly, to a Bluetooth pulse diagnosis bracelet and a method for transmitting pulse data; the Bluetooth pulse diagnosis bracelet comprises: an acquisition unit and a Bluetooth transmission unit; the Bluetooth transmission unit further comprises: an information acquisition module and a transmission module; the method comprises: STEP S1, the Bluetooth pulse diagnosis bracelet monitoring the pulse data in real time; STEP S2, the Bluetooth pulse diagnosis bracelet acquiring the Bluetooth control information sent from the remote-connected intelligent terminal; STEP S3, the Bluetooth pulse diagnosis bracelet determining the meanings of the Bluetooth control information, and when the Bluetooth control information represents the communication is permitted, going to Step 4; STEP S4, the Bluetooth pulse diagnosis bracelet transmits the pulse data to the intelligent terminal according to the method of Bluetooth transmission.
    Type: Application
    Filed: July 6, 2016
    Publication date: July 5, 2018
    Inventors: Jiatuo XU, Ji CUI, Liping TU, Zhifeng ZHANG, Yimin BAO, Longtao CUI, Jingbin HUANG
  • Publication number: 20180166273
    Abstract: Described is a post-CMP cleaning solution and methods useful to remove residue from a CMP substrate or to prevent formation of residue on a surface of a CMP substrate.
    Type: Application
    Filed: November 29, 2017
    Publication date: June 14, 2018
    Inventors: Helin HUANG, Ji CUI
  • Publication number: 20170066944
    Abstract: Described are materials and methods for processing (polishing or planarizing) a substrate that contains pattern dielectric material using a polishing composition (aka “slurry”) and an abrasive pad, e.g., CMP processing.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 9, 2017
    Inventors: Ji CUI, Viet LAM, Steven GRUMBINE
  • Publication number: 20170014969
    Abstract: Described are materials and methods for processing (polishing or planarizing) a substrate that contains pattern dielectric material using a polishing composition (aka “slurry”) and an abrasive pad, e.g., CMP processing.
    Type: Application
    Filed: July 12, 2016
    Publication date: January 19, 2017
    Inventors: Viet LAM, Ji CUI
  • Patent number: 9188284
    Abstract: This disclosure relates to a natural gas absorption device that includes (1) at least one porous, flexible container that has an average pore diameter and is permeable to natural gas, (2) a natural gas absorption material at least partially disposed in the container, the material having a volume average diameter larger than the average pore diameter of the container, and (3) a storage tank having an opening, the tank enclosing the container and the natural gas absorption material.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: November 17, 2015
    Assignee: Luon Energy LLC
    Inventors: Nie Luo, Ji Cui, Lizhang Yang