Patents by Inventor Tom Cho

Tom Cho 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: 11680308
    Abstract: A chamber component for a process chamber comprises a ceramic body and one or more protective layer on at least one surface of the ceramic body, wherein the one or more protective layer comprises Y3Al5O12 having a dielectric constant of 9.76+/?up to 30% and a hermiticity of 4.4E-10 cm3/s+/?up to 30%.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: June 20, 2023
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Publication number: 20210317563
    Abstract: A chamber component for a process chamber comprises a ceramic body and one or more protective layer on at least one surface of the ceramic body, wherein the one or more protective layer comprises Y3Al5O12 having a dielectric constant of 9.76+/?up to 30% and a hermiticity of 4.4E-10 cm3/s+/?up to 30%.
    Type: Application
    Filed: June 4, 2021
    Publication date: October 14, 2021
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Patent number: 11053581
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Er2O3, Er3Al5O12, and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: July 6, 2021
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Patent number: 10734202
    Abstract: An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 1 mol % to about 55 mol %, and Al2O3 in a range between about 1 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 45 mol % to about 99 mol % and Al2O3 in a range between about 1 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 45 mol % to about 99 mol % and ZrO2 in a range between about 1 mol % to about 55 mol %.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: August 4, 2020
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Sun, Biraja P. Kanungo, Tom Cho
  • Publication number: 20200087776
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Er2O3, Er3Al5O12, and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Application
    Filed: November 15, 2019
    Publication date: March 19, 2020
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Patent number: 10501843
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12 and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: December 10, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Patent number: 10418229
    Abstract: An component of a processing chamber comprises an aerosol deposited coating on the component, the aerosol deposited coating comprising a first type of metal oxide nanoparticle and a second type of metal oxide nanoparticle.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: September 17, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jennifer Y. Sun, Biraja Kanungo, Tom Cho, Ying Zhang
  • Patent number: 10119188
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12 and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: November 6, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Publication number: 20180102237
    Abstract: An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 0 mol % to about 55 mol %, and Al2O3 in a range between about 0 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 30 mol % to about 60 mol %, ZrO2 in a range between about 0 mol % to about 20 mol %, and Al2O3 in a range between about 30 mol % to about 60 mol %.
    Type: Application
    Filed: December 8, 2017
    Publication date: April 12, 2018
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Tom Cho
  • Publication number: 20180087144
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12 and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Application
    Filed: November 16, 2017
    Publication date: March 29, 2018
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Publication number: 20180073125
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12 and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Application
    Filed: November 16, 2017
    Publication date: March 15, 2018
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Patent number: 9865434
    Abstract: An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 0 mol % to about 55 mol %, and Al2O3 in range between about 0 mol % to about 10 mol %. The ceramic coating may alternatively inculde Y2O3 in a range between about 30 mol % to about 60 mol %, ZrO2 in a range between about 0 mol % to about 20 mol %, and Al2O3 in a range between about 30 mol % to about 60 mol %.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: January 9, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Tom Cho
  • Patent number: 9850568
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12 and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 26, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Publication number: 20170287683
    Abstract: An component of a processing chamber comprises an aerosol deposited coating on the component, the aerosol deposited coating comprising a first type of metal oxide nanoparticle and a second type of metal oxide nanoparticle.
    Type: Application
    Filed: June 12, 2017
    Publication date: October 5, 2017
    Inventors: Jennifer Y. Sun, Biraja Kanungo, Tom Cho, Ying Zhang
  • Patent number: 9708713
    Abstract: A method for coating a component for use in a semiconductor chamber for plasma etching includes providing the component and loading the component in a deposition chamber. A pressure in the deposition chamber is reduced to below atmospheric pressure. A coating is deposited on the component by spraying an aerosol comprising a suspension of a first type of metal oxide nanoparticle and a second type of metal oxide nanoparticle onto the component at approximately room temperature.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: July 18, 2017
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja Kanungo, Tom Cho, Ying Zhang
  • Publication number: 20150270108
    Abstract: An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 1 mol % to about 55 mol %, and Al2O3 in a range between about 1 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 45 mol % to about 99 mol % and Al2O3 in a range between about 1 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 45 mol % to about 99 mol % and ZrO2 in a range between about 1 mol % to about 55 mol %.
    Type: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Applicant: Applied Materials, Inc.
    Inventors: Jennifer Sun, Biraja P. Kanungo, Tom Cho
  • Publication number: 20140377504
    Abstract: An article comprises a body and at least one protective layer on at least one surface of the body. The at least one protective layer is a thin film having a thickness of less than approximately 20 microns that comprises a ceramic selected from a group consisting of Y3Al5O12, Y4Al2O9, Er2O3, Gd2O3, Er3Al5O12, Gd3Al5O12 and a ceramic compound comprising Y4Al2O9 and a solid-solution of Y2O3—ZrO2.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Vahid Firouzdor, Tom Cho
  • Publication number: 20140363596
    Abstract: An article includes a body that is coated with a ceramic coating. The ceramic coating may include Y2O3 in a range between about 45 mol % to about 99 mol %, ZrO2 in a range between about 0 mol % to about 55 mol %, and Al2O3 in a range between about 0 mol % to about 10 mol %. The ceramic coating may alternatively include Y2O3 in a range between about 30 mol % to about 60 mol %, ZrO2 in a range between about 0 mol % to about 20 mol %, and Al2O3 in a range between about 30 mol % to about 60 mol %.
    Type: Application
    Filed: July 30, 2013
    Publication date: December 11, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja P. Kanungo, Tom Cho
  • Publication number: 20140349073
    Abstract: A method for coating a component for use in a semiconductor chamber for plasma etching includes providing the component and loading the component in a deposition chamber. A pressure in the deposition chamber is reduced to below atmospheric pressure. A coating is deposited on the component by spraying an aerosol comprising a suspension of a first type of metal oxide nanoparticle and a second type of metal oxide nanoparticle onto the component at approximately room temperature.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Applicant: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Biraja Kanungo, Tom Cho, Ying Zhang
  • Patent number: 7663121
    Abstract: An ultraviolet (UV) cure chamber enables curing a dielectric material disposed on a substrate and in situ cleaning thereof. A tandem process chamber provides two separate and adjacent process regions defined by a body covered with a lid having windows aligned respectively above each process region. One or more UV bulbs per process region that are covered by housings coupled to the lid emit UV light directed through the windows onto substrates located within the process regions. The UV bulbs can be an array of light emitting diodes or bulbs utilizing a source such as microwave or radio frequency. The UV light can be pulsed during a cure process. Using oxygen radical/ozone generated remotely and/or in-situ accomplishes cleaning of the chamber. Use of lamp arrays, relative motion of the substrate and lamp head, and real-time modification of lamp reflector shape and/or position can enhance uniformity of substrate illumination.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 16, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Thomas Nowak, Juan Carlos Rocha-Alvarez, Andrzej Kaszuba, Scott A. Hendrickson, Dustin W. Ho, Sanjeev Baluja, Tom Cho, Josephine Chang, Hichem M'Saad