Patents by Inventor Jong Ryang Joo

Jong Ryang Joo 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: 8574445
    Abstract: Provided are a method for generating hollow cathode plasma and a method for treating a large area substrate using the hollow cathode plasma. In the methods, the hollow cathode plasma is generated by a gas introduced between a hollow cathode in which a plurality of lower grooves where plasma is generated is defined in a bottom surface thereof and a baffle in which a plurality of injection holes is defined. A substrate disposed on a substrate support member is treated using the hollow cathode plasma passing through the injection holes. The uniform plasma having high density can be generated by hollow cathode effect due to the hollow cathode having the lower grooves and the injection holes of the baffle. Also, since the substrate can be treated using a hydrogen gas and a nitrogen gas in an ashing process, a damage of a low dielectric constant dielectric can be minimized.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: November 5, 2013
    Assignee: PSK Inc.
    Inventors: Jeonghee Cho, Jong Ryang Joo, Shinkeun Park
  • Publication number: 20130240492
    Abstract: A method of generating hollow cathode plasma and a method of treating a large area substrate using the hollow cathode plasma are disclosed. In the methods, the hollow cathode plasma is generated by a gas introduced between a hollow cathode in which a plurality of lower grooves where plasma is generated is defined in a bottom surface thereof and a baffle in which a plurality of injection holes is defined. A substrate disposed on a substrate support member is treated using the hollow cathode plasma passing through the injection holes. The uniform plasma having high density can be generated by hollow cathode effect due to the hollow cathode having the lower grooves and the injection holes of the baffle. Also, since the substrate can be treated using a hydrogen gas and a nitrogen gas in an ashing process, a damage of a low dielectric constant dielectric can be minimized.
    Type: Application
    Filed: May 1, 2013
    Publication date: September 19, 2013
    Inventors: Jeonghee CHO, Shinkeun PARK, Jong Ryang JOO, Jae-Kyun YANG
  • Publication number: 20100025371
    Abstract: Provided are a method for generating hollow cathode plasma and a method for treating a large area substrate using the hollow cathode plasma. In the methods, the hollow cathode plasma is generated by a gas introduced between a hollow cathode in which a plurality of lower grooves where plasma is generated is defined in a bottom surface thereof and a baffle in which a plurality of injection holes is defined. A substrate disposed on a substrate support member is treated using the hollow cathode plasma passing through the injection holes. The uniform plasma having high density can be generated by hollow cathode effect due to the hollow cathode having the lower grooves and the injection holes of the baffle. Also, since the substrate can be treated using a hydrogen gas and a nitrogen gas in an ashing process, a damage of a low dielectric constant dielectric can be minimized.
    Type: Application
    Filed: June 5, 2009
    Publication date: February 4, 2010
    Inventors: Jeonghee Cho, Jong Ryang Joo, Shinkeun Park
  • Publication number: 20100006226
    Abstract: Provided are a method of generating hollow cathode plasma and a method of treating a large area substrate using the hollow cathode plasma. In the methods, the hollow cathode plasma is generated by a gas introduced between a hollow cathode in which a plurality of lower grooves where plasma is generated is defined in a bottom surface thereof and a baffle in which a plurality of injection holes is defined. A substrate disposed on a substrate support member is treated using the hollow cathode plasma passing through the injection holes. The uniform plasma having high density can be generated by hollow cathode effect due to the hollow cathode having the lower grooves and the injection holes of the baffle. Also, since the substrate can be treated using a hydrogen gas and a nitrogen gas in an ashing process, a damage of a low dielectric constant dielectric can be minimized.
    Type: Application
    Filed: June 5, 2009
    Publication date: January 14, 2010
    Inventors: Jeonghee Cho, Shinkeun Park, Jong Ryang Joo, Jae-Kyun Yang