Patents by Inventor Shumin Wang

Shumin Wang 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: 20050148187
    Abstract: Alpha-amino acid containing chemical mechanical polishing compositions and slurries that are useful for polishing substrates including multiple layers of metals, or metals and dielectrics.
    Type: Application
    Filed: January 10, 2005
    Publication date: July 7, 2005
    Inventors: Shumin Wang, Vlasta Kaufman
  • Patent number: 6867140
    Abstract: The invention provides a method for polishing one or more layers of a multi-layer substrate that includes a first metal layer and a second layer comprising (i) contacting the first metal layer with a polishing system comprising a liquid carrier, at least one oxidizing agent, at least one polishing additive that increases the rate at which the system polishes at least one layer of the substrate, at least one stopping compound with a polishing selectivity of the first metal layer:second layer of at least about 30:1, wherein the stopping compound is a cationically charged nitrogen containing compound selected from compounds comprising amines, imines, amides, imides, and mixtures thereof, and a polishing pad and/or an abrasive, and (ii) polishing the first metal layer with the system until at least a portion of the first metal layer is removed from the substrate.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: March 15, 2005
    Assignee: Cabot Microelectronics Corporation
    Inventors: Shumin Wang, Vlasta Brusic Kaufman, Steven K. Grumbine, Isaac K. Cherian
  • Patent number: 6855266
    Abstract: The invention provides a system for polishing one or more layers of a multi-layer substrate that includes a first metal layer and a second layer comprising (i) a liquid carrier, (ii) at least one oxidizing agent, (iii) at least one polishing additive that increases the rate at which the system polishes at least one layer of the substrate, (iv) at least one stopping compound with a polishing selectivity of the first metal layer:second layer of at least about 30:1, and (v) a polishing pad and/or an abrasive. The invention also provides a composition comprising (i) a liquid carrier, (ii) at least one oxidizing agent, (iii) at least one polishing additive (iv) at least one stopping compound with a polishing selectivity of the first metal layer:second layer of at least about 30:1, to be used with (v) a polishing pad and/or an abrasive.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: February 15, 2005
    Assignee: Cabot Microelectronics Corporation
    Inventors: Shumin Wang, Vlasta Brusic Kaufman, Steven K. Grumbine, Isaac K. Cherian
  • Patent number: 6852632
    Abstract: The invention provides a method for polishing one or more layers of a multi-layer substrate that includes a first metal layer and a second layer comprising (i) contacting the first metal layer with a polishing system comprising a liquid carrier, at least one oxidizing agent, at least one polishing additive that increases the rate at which the system polishes at least one layer of the substrate, wherein the polishing additive is selected from the group consisting of pyrophosphates, condensed phosphates, phosphonic acids and salts thereof, amines, amino alcohols, amides, imines, imino acids, nitriles, nitros, thiols thioesters, thioethers, carbothiolic acids, carbothionic acids, thiocarboxylic acids, thiosalicylic acids, and mixtures thereof, and a polishing pad and/or an abrasive, and (ii) polishing the first metal layer with the system until at least a portion of the first metal layer is removed from the substrate.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: February 8, 2005
    Assignee: Cabot Microelectronics Corporation
    Inventors: Shumin Wang, Vlasta Brusic Kaufman, Steven K. Grumbine, Isaac K. Cherian, Renjie Zhou
  • Patent number: 6840971
    Abstract: Alpha-amino acid containing chemical mechanical polishing compositions and slurries that are useful for polishing substrates including multiple layers of metals, or metals and dielectrics.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: January 11, 2005
    Assignee: Cabot microelectronics Corporation
    Inventors: Shumin Wang, Vlasta Brusic Kaufman
  • Patent number: 6811474
    Abstract: The invention provides a polishing system comprising (a) an abrasive, a polishing pad, a means for oxidizing a substrate, or any combination thereof, (b) a conducting polymer having an electrical conductivity of about 10−10 S/cm to about 106 S/cm, and (c) a liquid carrier.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: November 2, 2004
    Assignee: Cabot Microelectronics Corporation
    Inventors: Isaac K. Cherian, Jian Zhang, Fred Sun, Shumin Wang, Eric H. Klingenberg
  • Publication number: 20040214443
    Abstract: Polishing compositions comprising at least one soluble silane compound and at least one abrasive that are useful for polishing substrate surface features.
    Type: Application
    Filed: October 22, 2003
    Publication date: October 28, 2004
    Applicant: Cabot Microelectronics Corporation
    Inventors: Steven K. Grumbine, Shumin Wang
  • Publication number: 20040209555
    Abstract: The invention provides a method of polishing a substrate, which method comprises the steps of (i) providing a polishing composition, (ii) providing a substrate comprising at least one metal layer, and (iii) abrading at least a portion of the metal layer with the polishing composition to polish the substrate. The polishing composition comprises an abrasive and a liquid carrier, wherein the abrasive comprises metal oxide particles having a surface with a silane compound adhered to a portion thereof and a polymer adhered to the silane compound and wherein the polymer is selected from the group consisting of water-soluble polymers and water-emulsifiable polymers. The invention also provides a polishing composition as described above, wherein the total amount of abrasive particles present in the polishing composition is no greater than about 20% by weight of the polishing composition, and the metal oxide particles do not comprise zirconia.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 21, 2004
    Applicant: Cabot Microelectronics Corporation
    Inventors: Fred F. Sun, Bin Lu, Ethan K. Lightle, Shumin Wang
  • Patent number: 6793559
    Abstract: A method for polishing computer rigid disks comprising bringing at least one surface of the rigid disk into contact with a polishing pad and applying a composition to the rigid disk comprising at least one hydroxylamine additive and colloidal silica to give polished rigid disk.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: September 21, 2004
    Assignee: Cabot Microelectronics Corporation
    Inventors: Mingming Fang, Christopher C. Streinz, Shumin Wang
  • Patent number: 6767476
    Abstract: Chemical mechanical polishing compositions and slurries comprising a film-forming agent and at least one silane compound wherein the compositions are useful for polishing substrate features such as copper, tantalum, and tantalum nitride features.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: July 27, 2004
    Assignee: Cabot Microelectronics Corporation
    Inventors: Shumin Wang, Steven K. Grumbine, Christopher C. Streinz, Eric W. G. Hoglund
  • Publication number: 20040089634
    Abstract: A chemical mechanical polishing composition comprising a soluble cerium compound at a pH above 3 and a method to selectively polish a silicon oxide overfill in preference to a silicon nitride film layer in a single step during the manufacture of integrated circuits and semiconductors.
    Type: Application
    Filed: October 27, 2003
    Publication date: May 13, 2004
    Applicant: Cabot Microelectronics Corporation
    Inventors: Gautam S. Grover, Brian L. Mueller, Shumin Wang
  • Patent number: 6689692
    Abstract: A chemical mechanical polishing composition comprising a soluble cerium compound at a pH above 3 and a method to selectively polish a silicon oxide overfill in preference to a silicon nitride film layer in a single step during the manufacture of integrated circuits and semiconductors.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: February 10, 2004
    Assignee: Cabot Microelectronics Corporation
    Inventors: Gautam S. Grover, Brian L. Mueller, Shumin Wang
  • Publication number: 20040014398
    Abstract: The invention provides a method of polishing a substrate comprising (i) contacting a substrate with a polishing system comprising (a) an abrasive, a polishing pad, a means for oxidizing a substrate, or any combination thereof, (b) a conducting polymer having an electrical conductivity of about 10−10 S/cm to about 106 S/cm, and (c) a liquid carrier, and (ii) abrading or removing at least a portion of the substrate to polish the substrate.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 22, 2004
    Applicant: Cabot Microelectronics Corporation
    Inventors: Jian Zhang, Fred Sun, Shumin Wang, Isaac K. Cherian, Eric H. Klingenberg
  • Publication number: 20040014400
    Abstract: The invention provides a polishing system comprising (a) an abrasive, a polishing pad, a means for oxidizing a substrate, or any combination thereof, (b) a conducting polymer having an electrical conductivity of about 10−10 S/cm to about 106 S/cm, and (c) a liquid carrier.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 22, 2004
    Applicant: Cabot Microelectronics Corporation
    Inventors: Isaac K. Cherian, Jian Zhang, Fred Sun, Shumin Wang, Eric H. Klingenberg
  • Publication number: 20040009671
    Abstract: A chemical mechanical polishing slurry comprising an oxidizing agent, a complexing agent, an abrasive, and an optional surfactant, as well as a method for using the chemical mechanical polishing slurry to remove copper alloy, titanium, titanium nitride, tantalum and tantalum nitride containing layers from a substrate. The slurry does not include a separate film-forming agent.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 15, 2004
    Applicant: Cabot Microelectronics Corporation
    Inventors: Vlasta Brusic Kaufman, Rodney C. Kistler, Shumin Wang
  • Publication number: 20030209522
    Abstract: A polishing composition comprising a dispersion of silane-modified abrasive particles formed by combining at least one metal oxide abrasive having at least one surface metal hydroxide with at least one silane compound and methods for polishing substrate features such as metal features and oxide features using the polishing compositions.
    Type: Application
    Filed: June 6, 2003
    Publication date: November 13, 2003
    Applicant: Cabot Microelectronics Corporation
    Inventors: Steven K. Grumbine, Christopher C. Streinz, Shumin Wang
  • Patent number: 6646348
    Abstract: Polishing compositions comprising at least one soluble silane compound and at least one abrasive that are useful for polishing substrate surface features.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: November 11, 2003
    Assignee: Cabot Microelectronics Corporation
    Inventors: Steven K. Grumbine, Shumin Wang
  • Publication number: 20030203635
    Abstract: Chemical mechanical polishing compositions and slurries comprising a film-forming agent and at least one silane compound wherein the compositions are useful for polishing substrate features such as copper, tantalum, and tantalum nitride features.
    Type: Application
    Filed: April 21, 2003
    Publication date: October 30, 2003
    Applicant: Cabot Microelectronics Corporation
    Inventors: Shumin Wang, Steven K. Grumbine, Christopher C. Streinz, Eric W.G. Hoglund
  • Publication number: 20030170991
    Abstract: The invention provides a system for polishing one or more layers of a multi-layer substrate that includes a first metal layer and a second layer comprising (i) a liquid carrier, (ii) at least one oxidizing agent, (iii) at least one polishing additive that increases the rate at which the system polishes at least one layer of the substrate, wherein the polishing additive is selected from the group consisting of pyrophosphates, condensed phosphates, phosphonic acids and salts thereof, amines, amino alcohols, amides, imines, imino acids, nitrites, nitros, thiols, thioesters, thioethers, carbothiolic acids, carbothionic acids, thiocarboxylic acids, thiosalicylic acids, and mixtures thereof, and (iv) a polishing pad and/or an abrasive. The invention also provides a method of polishing a substrate comprising contacting a surface of a substrate with the system and polishing at least a portion of the substrate therewith.
    Type: Application
    Filed: January 29, 2003
    Publication date: September 11, 2003
    Applicant: Cabot Microelectronics Corporation
    Inventors: Shumin Wang, Vlasta Brusic Kaufman, Steven K. Grumbine, Isaac K. Cherian, Renjie Zhou
  • Publication number: 20030166337
    Abstract: Alpha-amino acid containing chemical mechanical polishing compositions and slurries that are useful for polishing substrates including multiple layers of metals, or metals and dielectrics.
    Type: Application
    Filed: December 19, 2002
    Publication date: September 4, 2003
    Applicant: Cabot Microelectronics, Corp.
    Inventors: Shumin Wang, Vlasta Brusic Kaufman