Patents by Inventor ABHUDAYA MISHRA

ABHUDAYA MISHRA 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: 11925912
    Abstract: The disclosure features a system that includes a plurality of material tanks, each of which includes at least one material for forming a chemical composition and includes a first recirculation loop; at least one mixing tank in which the materials from the material tanks are mixed to form a chemical composition, the mixing tank including a second recirculation loop; and at least one holding tank configured to continuously receive the chemical composition from the mixing tank, the holding tank including a third recirculation loop. The system may further include a plurality of fluid flow controller units and be configured to form material and chemical composition flows in an in-process steady state.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: March 12, 2024
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: Shih-Pin Chou, Wen-Hung Chang, Deepak Mahulikar, Tamas Varga, Abhudaya Mishra
  • Publication number: 20230265313
    Abstract: This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid or a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion containing a C4 to C40 hydrocarbon group; and a hydrophilic portion containing at least one group selected from the group consisting of a sulfinite group, a sulfate group, a sulfonate group, a carboxylate group, a phosphate group, and a phosphonate group; in which the hydrophobic portion and the hydrophilic portion are separated by zero to ten alkylene oxide groups. The polishing composition can have a pH of from about 2 to about 6.5.
    Type: Application
    Filed: May 1, 2023
    Publication date: August 24, 2023
    Inventors: Eric Turner, Abhudaya Mishra, Carl Ballesteros
  • Patent number: 11680186
    Abstract: This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid or a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion containing a C4 to C40 hydrocarbon group; and a hydrophilic portion containing at least one group selected from the group consisting of a sulfinite group, a sulfate group, a sulfonate group, a carboxylate group, a phosphate group, and a phosphonate group; in which the hydrophobic portion and the hydrophilic portion are separated by zero to ten alkylene oxide groups. The polishing composition can have a pH of from about 2 to about 6.5.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: June 20, 2023
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: Eric Turner, Abhudaya Mishra, Carl Ballesteros
  • Patent number: 11674056
    Abstract: Polishing compositions that can selectively and preferentially polish certain dielectric films over other dielectric films are provided herein. These polishing compositions include either cationic or anionic abrasives based on the target dielectric film to be removed and preserved. The polishing compositions utilize a novel electrostatic charge based design, where based on the charge of the abrasives and their electrostatic interaction (forces of attraction or repulsion) with the charge on the dielectric film, various material removal rates and polishing selectivities can be achieved.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: June 13, 2023
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventor: Abhudaya Mishra
  • Publication number: 20230174905
    Abstract: The present disclosure relates to cleaning compositions that can be used to clean semiconductor substrates. These cleaning compositions can be used to remove defects arising from previous processing steps on these semiconductor substrates. These cleaning compositions can remove the defects/contaminants from the semiconductor substrates and thereby make the substrates appropriate for further processing. The cleaning compositions described herein primarily contain at least one organic acid and at least one anionic polymer.
    Type: Application
    Filed: February 1, 2023
    Publication date: June 8, 2023
    Inventors: Abhudaya Mishra, Carl Ballesteros, Eric Turner
  • Publication number: 20230135325
    Abstract: A polishing composition includes an anionic abrasive, a pH adjuster a low-k removal rate inhibitor, a ruthenium removal rate enhancer, and water. A method of polishing a substrate includes the steps of: applying the polishing composition described herein to a surface of a substrate, wherein the surface comprises ruthenium or a hard mask material; and bringing a pad into contact with the surface of the substrate and moving the pad in relation to the substrate.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 4, 2023
    Inventors: Yannan Liang, Bin Hu, Abhudaya Mishra, Ting-Kai Huang, Yibin Zhang, James Johnston, James McDonough
  • Patent number: 11603512
    Abstract: The present disclosure relates to cleaning compositions that can be used to clean semiconductor substrates. These cleaning compositions can be used to remove defects arising from previous processing steps on these semiconductor substrates. These cleaning compositions can remove the defects/contaminants from the semiconductor substrates and thereby make the substrates appropriate for further processing. The cleaning compositions described herein primarily contain at least one organic acid and at least one anionic polymer.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: March 14, 2023
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: Abhudaya Mishra, Carl Ballesteros, Eric Turner
  • Publication number: 20220375758
    Abstract: This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid or a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion and a hydrophilic portion; in which the hydrophobic portion includes a C16 to C22 hydrocarbon group and the hydrophilic portion comprises at least one group selected from the group consisting of a phosphate group and a phosphonate group. The polishing composition has a pH of about 2 to about 6.5.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Inventors: Carl Ballesteros, Abhudaya Mishra, Eric Turner
  • Patent number: 11499071
    Abstract: The disclosure provides chemical mechanical polishing compositions and methods for polishing polysilicon films with high removal rates. The compositions include 1) an abrasive; 2) at least one compound of structure (I): 3) at least one compound of structure (II): and 4) water; in which the composition does not include tetramethylammonium hydroxide or a salt thereof. The variables n, R1-R7, X, Y, and Z1-Z3 in structures (I) and (II) are defined in the Specification. The synergistic effect of the compounds of structures (I) and (II) in these chemical mechanical polishing compositions leads to high polysilicon films material removal rate during polishing.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 15, 2022
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: Alexei P. Leonov, Abhudaya Mishra
  • Publication number: 20220306899
    Abstract: This disclosure relates to polishing compositions that include (1) at least one abrasive; (2) at least one organic acid or a salt thereof; (3) at least one amine compound; (4) at least one nitride removal rate reducing agent; and (5) an aqueous solvent.
    Type: Application
    Filed: March 21, 2022
    Publication date: September 29, 2022
    Inventors: Qingmin Cheng, Bin Hu, Kristopher D. Kelly, Yannan Liang, Hyosang Lee, Eric Turner, Abhudaya Mishra
  • Patent number: 11424131
    Abstract: This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid and a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion and a hydrophilic portion; in which the hydrophobic portion includes a C16 to C22 hydrocarbon group and the hydrophilic portion comprises at least one group selected from the group consisting of a sulfinite group, a sulfate group, a sulfonate group, a carboxylate group, a phosphate group, and a phosphonate group. The polishing composition has a pH of about 2 to about 6.5.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: August 23, 2022
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: Carl Ballesteros, Abhudaya Mishra, Eric Turner
  • Publication number: 20220169892
    Abstract: Polishing compositions that can selectively and preferentially polish certain dielectric films over other dielectric films are provided herein. These polishing compositions include either cationic or anionic abrasives based on the target dielectric film to be removed and preserved. The polishing compositions utilize a novel electrostatic charge based design, where based on the charge of the abrasives and their electrostatic interaction (forces of attraction or repulsion) with the charge on the dielectric film, various material removal rates and polishing selectivities can be achieved.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 2, 2022
    Inventor: Abhudaya Mishra
  • Publication number: 20220145130
    Abstract: This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid or a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion containing a C4 to C40 hydrocarbon group; and a hydrophilic portion containing at least one group selected from the group consisting of a sulfinite group, a sulfate group, a sulfonate group, a carboxylate group, a phosphate group, and a phosphonate group; in which the hydrophobic portion and the hydrophilic portion are separated by zero to ten alkylene oxide groups. The polishing composition can have a pH of from about 2 to about 6.5.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 12, 2022
    Inventors: Eric Turner, Abhudaya Mishra, Carl Ballesteros
  • Publication number: 20220135840
    Abstract: This disclosure relates polishing compositions that include (1) at least one abrasive; (2) at least one organic acid or a salt thereof; (3) at least one first amine compound, the at least one first amine compound including an alkylamine having a 6-24 carbon alkyl chain; (4) at least one second amine compound containing at least two nitrogen atoms, the second amine compound being different from the first amine compound; and (5) an aqueous solvent.
    Type: Application
    Filed: October 25, 2021
    Publication date: May 5, 2022
    Inventors: Qingmin Cheng, Bin Hu, Yannan Liang, Hyosang Lee, Liqing Wen, Yibin Zhang, Abhudaya Mishra
  • Publication number: 20210348029
    Abstract: Polishing compositions that can selectively and preferentially polish certain dielectric films over other dielectric films are provided herein. These polishing compositions include either cationic or anionic abrasives based on the target dielectric film to be removed and preserved. The polishing compositions utilize a novel electrostatic charge based design, where based on the charge of the abrasives and their electrostatic interaction (forces of attraction or repulsion) with the charge on the dielectric film, various material removal rates and polishing selectivities can be achieved.
    Type: Application
    Filed: May 27, 2021
    Publication date: November 11, 2021
    Inventor: Abhudaya Mishra
  • Publication number: 20210292685
    Abstract: The present disclosure relates to cleaning compositions that can be used to clean semiconductor substrates. These cleaning compositions can be used to remove defects arising from previous processing steps on these semiconductor substrates. These cleaning compositions can remove the defects/contaminants from the semiconductor substrates and thereby make the substrates appropriate for further processing. The cleaning compositions described herein primarily contain at least one organic acid and at least one anionic polymer.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 23, 2021
    Inventors: Abhudaya Mishra, Carl Ballesteros, Eric Turner
  • Patent number: 11034861
    Abstract: Polishing compositions that can selectively and preferentially polish certain dielectric films over other dielectric films are provided herein. These polishing compositions include either cationic or anionic abrasives based on the target dielectric film to be removed and preserved. The polishing compositions utilize a novel electrostatic charge based design, where based on the charge of the abrasives and their electrostatic interaction (forces of attraction or repulsion) with the charge on the dielectric film, various material removal rates and polishing selectivities can be achieved.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: June 15, 2021
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventor: Abhudaya Mishra
  • Publication number: 20200343098
    Abstract: This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid and a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion and a hydrophilic portion; in which the hydrophobic portion includes a C16 to C22 hydrocarbon group and the hydrophilic portion comprises at least one group selected from the group consisting of a sulfinite group, a sulfate group, a sulfonate group, a carboxylate group, a phosphate group, and a phosphonate group. The polishing composition has a pH of about 2 to about 6.5.
    Type: Application
    Filed: July 15, 2020
    Publication date: October 29, 2020
    Inventors: Carl Ballesteros, Abhudaya Mishra, Eric Turner
  • Publication number: 20200339837
    Abstract: This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid, a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion containing a C16 to C22 hydrocarbon group; and a hydrophilic portion containing at least one group selected from the group consisting of a sulfinite group, a sulfate group, a sulfonate group, a carboxylate group, a phosphate group, and a phosphonate group. The polishing composition can have a pH of about 2 to about 6.5.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Inventors: Eric Turner, Abhudaya Mishra, Carl Ballesteros
  • Patent number: 10808145
    Abstract: Polishing compositions that can selectively and preferentially polish certain dielectric films over other dielectric films are provided herein. These polishing compositions include either cationic or anionic abrasives based on the target dielectric film to be removed and preserved. The polishing compositions utilize a novel electrostatic charge based design, where based on the charge of the abrasives and their electrostatic interaction (forces of attraction or repulsion) with the charge on the dielectric film, various material removal rates and polishing selectivities can be achieved.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: October 20, 2020
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventor: Abhudaya Mishra