Patents by Inventor Jung-Keun Cho

Jung-Keun 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).

  • Publication number: 20080308131
    Abstract: The present invention is directed to a method and an apparatus for cleaning and drying wafers. The apparatus includes an injection unit having first and second injection ports configured for injecting different fluids and arranged in a moving direction of the rose or on a line adjacent to the moving direction. The injection unit migrates straightly from the center of a wafer to the edge thereof, and the first and second injection ports are linearly arranged on a moving line of the nozzle.
    Type: Application
    Filed: August 14, 2008
    Publication date: December 18, 2008
    Inventors: One-Vai Kim, Jae-Sun Han, Jeong-Yong Bae, Jung-Keun Cho
  • Publication number: 20080127888
    Abstract: A spin head includes chucking pins configures to chuck and unchuck a substrate. Contact portions of the chucking pins and the substrate are varied during a process to prevent a treating solution from remaining at the contact portions.
    Type: Application
    Filed: November 27, 2007
    Publication date: June 5, 2008
    Inventors: Ju Won Kim, Ki Hoon Choi, Jung Keun Cho, Kyo Woog Koo, Jung Bong Choi
  • Publication number: 20080063493
    Abstract: The present invention is directed to a substrate dryer, a substrate treating apparatus including the substrate dryer, and a substrate treating method. The substrate dryer includes a chamber, a process chamber constituting one part of the chamber and provided for supplying supercritical fluid to a substrate to dry the substrate, and a high-pressure chamber constituting the other part of the chamber and provided for boosting the process chamber above a critical pressure. According to the present invention, the substrate drying chamber is boosted fast by the high-pressure chamber to change to a supercritical state and thus a substrate dry treatment is performed using supercritical fluid.
    Type: Application
    Filed: May 31, 2007
    Publication date: March 13, 2008
    Inventors: Jung Keun Cho, Kyo-Woog Koo
  • Publication number: 20080061519
    Abstract: A chucking member configured to chuck the edge of a substrate includes a chucking pin which is eccentric from the rotation center. The chucking pin has a streamline shape and includes a first front-end portion disposed at the front end relative to the flow of an air current generated by the rotation of the substrate and a first back-end portion disposed at the back end relative to the flow of the air current. The first front-end portion includes a first tip, and the first front-end portion has a round shape.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 13, 2008
    Inventors: Jung Keun Cho, Kyo-Woog Koo, Bo Ram Chan Sung
  • Publication number: 20080057219
    Abstract: A substrate treating apparatus includes a substrate support unit with a chuck on which a substrate is loaded; a bottom chamber having an open top and configured to surround the circumference of the chuck; a top chamber configured to open or close the top of the bottom chamber such that the substrate is dried while the top chamber is sealed from the outside; and a direct injection nozzle member installed at the top chamber to inject fluid directly to the substrate while the top of the bottom chamber is closed. According to the substrate treating apparatus, drying efficiency of an entire substrate is enhanced, external contaminants are blocked, and generation of an oxide layer is suppressed.
    Type: Application
    Filed: May 31, 2007
    Publication date: March 6, 2008
    Inventors: Hyun-Jong Kim, Kyo-Woog Koo, Jung Keun Cho
  • Publication number: 20080052948
    Abstract: A spin head includes a rotatable plate, first chucking pins and second chucking pins for supporting a edge portion of a substrate loaded on the plate, and a driving unit for selectively driving the first and second chucking pins. The driving unit includes a first magnet connected to the first chucking pin and disposed at a first height, a second magnet connected to the second chucking pin and disposed at a second height, and a driving magnet for driving the first and second magnets. The driving magnet is elevated by means of an elevating member to selectively apply a magnetic force to the first or second magnet and moves in the radius outside direction of the first or second chucking pin due to a magnetic force.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 6, 2008
    Inventors: Hyun Jong Kim, Ju Won Kim, Jung Keun Cho
  • Publication number: 20080047580
    Abstract: A substrate treating apparatus for stripping photoresist on a substrate includes a support part for supporting the substrate, a dry-type treating part for stripping the photoresist on the substrate, and a wet-type treating part for stripping the photoresist on the substrate. While the substrate is supported by the support part, the photoresist on the substrate is primarily stripped by means of the dry-type treating part and secondarily stripped by means of the wet-type treating part. The dry-type treating part includes a plasma supply unit configured to supply plasma onto the substrate and a moving unit configured to vary a relative position of the plasma supply unit and the substrate.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 28, 2008
    Inventors: Yi Jung Kim, Kyung Jin Seo, Chang Ro Yoon, Jung Keun Cho
  • Patent number: 7323080
    Abstract: The present is directed to an apparatus for etching the top edge and bottom of a wafer. The apparatus includes a substrate support part for supporting a wafer and a movable protect part for preventing fluid for an etch from flowing into a non-etch portion of the wafer. The top edge and bottom of the wafer is etched by a wet etch, and a boundary of the non-etch portion and the edge of the wafer is etched by a dry etch.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: January 29, 2008
    Assignee: Semes Co., Ltd.
    Inventors: In-Jun Kim, Jung-Keun Cho, Jang-Seob Choi, Yong-Nam Choi, Jeong-Yong Bae
  • Publication number: 20080014358
    Abstract: An apparatus is provided for supplying a plurality of chemicals or gases to the surface of a substrate to clean and dry the substrate. The apparatus includes a substrate support unit with a chuck on which a substrate is loaded, a bottom chamber having an open top and configured to surround the circumference of the chuck, a top chamber configured to open or close the top of the bottom chamber such that a drying treatment for the substrate is performed while the substrate is isolated from the outside, and an indirect injection nozzle installed at the edge of the top chamber and configured to inject drying fluid toward the center of the top chamber such that the drying fluid is indirectly injected to the substrate. According to the apparatus, it is possible to enhance a substrate drying efficiency, suppress external contamination, and prevent the formation of an oxide layer.
    Type: Application
    Filed: May 31, 2007
    Publication date: January 17, 2008
    Inventors: Kyo-Woog Koo, Jung Keun Cho, Bo Ram Chan Sung
  • Publication number: 20070224820
    Abstract: A facility for cleaning substrates such as semiconductor wafers includes a loading/unloading part, an aligning part where wafers are repositioned from a horizontal state to a vertical state, a cleaning part performing etchant-treating, rinsing, and drying processes for wafers and having a plurality of process chamber stacked, and an interface part where a transfer bath is disposed to transfer wafers between the process chambers. When the wafers are transferred between the process chamber, the transfer bath is filled with deionized water (DI water) to prevent their exposure to the air. Wafers drawn out of the loading/unlading part are repositioned from a horizontal state to a vertical state and are transferred to a first process chamber being one of the process chambers to be subjected to a part of processes.
    Type: Application
    Filed: October 7, 2004
    Publication date: September 27, 2007
    Inventors: Joung-Hyeon Lim, Jung-Keun Cho, Kyo-Woog Koo, In-Ho Bang, Woo-Young Kim, Man-Seok Oh, Hyun-Jong Kim
  • Publication number: 20060266386
    Abstract: The present invention provides an apparatus and method for cleaning substrates such as semiconductor wafers by sinking the substrates into cleaning fluids such as cleaning chemicals or rinsing liquids and then drying the substrates. The substrate clean and dry apparatus of present invention includes a process chamber comprising a cleaning chamber that carries the cleaning fluid and discharges at bottom the cleaning fluid; and a drying chamber above the cleaning chamber. The process chamber further includes a discharge device for evacuating the gas from the drying chamber, the gas supplied into the drying chamber. The discharge device is located between the cleaning chamber and the drying chamber, and evacuates the gas by force such that the gas is driven down vertically in the drying chamber.
    Type: Application
    Filed: May 15, 2006
    Publication date: November 30, 2006
    Inventors: Jung-Keun Cho, Chang-Ro Yoon, Kyo-Woog Koo
  • Publication number: 20060081269
    Abstract: The present invention is directed to a method and an apparatus for cleaning and drying wafers. The apparatus includes an injection unit having first and second injection ports configured for injecting different fluids and arranged in a moving direction of the rose or on a line adjacent to the moving direction. The injection unit migrates straightly from the center of a wafer to the edge thereof, and the first and second injection ports are linearly arranged on a moving line of the nozzle.
    Type: Application
    Filed: March 8, 2005
    Publication date: April 20, 2006
    Inventors: One-Vai Kim, Jae-Sun Han, Jeong-Yong Bae, Jung-Keun Cho
  • Publication number: 20050247667
    Abstract: The present is directed to an apparatus for etching the top edge and bottom of a wafer. The apparatus includes a substrate support part for supporting a wafer and a movable protect part for preventing fluid for an etch from flowing into a non-etch portion of the wafer. The top edge and bottom of the wafer is etched by a wet etch, and a boundary of the non-etch portion and the edge of the wafer is etched by a dry etch.
    Type: Application
    Filed: March 21, 2005
    Publication date: November 10, 2005
    Inventors: In-Jun Kim, Jung-Keun Cho, Jang-Seob Choi, Yong-Nam Choi, Jeong-Yong Bae