Patents by Inventor Kyung-Doo Kang

Kyung-Doo Kang 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: 8637939
    Abstract: A semiconductor device includes a channel layer formed over a substrate, a gate formed over the channel layer, junction regions formed on both sides of the channel layer to protrude from the substrate, and a buried barrier layer formed between the channel layer and the junction regions.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: January 28, 2014
    Assignee: Hynix Semiconductor Inc.
    Inventor: Kyung-Doo Kang
  • Publication number: 20110156171
    Abstract: A semiconductor device includes a channel layer formed over a substrate, a gate formed over the channel layer, junction regions formed on both sides of the channel layer to protrude from the substrate, and a buried barrier layer formed between the channel layer and the junction regions.
    Type: Application
    Filed: June 28, 2010
    Publication date: June 30, 2011
    Inventor: Kyung-Doo KANG
  • Publication number: 20110024837
    Abstract: A semiconductor device includes a gate formed over a substrate, a junction region formed in the substrate at both sides of the gate, and a depletion region expansion prevention layer surrounding sidewalls of the junction region in the substrate.
    Type: Application
    Filed: June 25, 2010
    Publication date: February 3, 2011
    Inventor: Kyung-Doo KANG
  • Patent number: 7833868
    Abstract: A method for fabricating a semiconductor device, the method includes forming an isolation layer defining an active region over a substrate, forming a conductive layer over the substrate including the isolation layer, patterning the conductive layer to form a conductive pattern over the active region defined on both sides of a gate region, forming insulation spacers on a sidewall of the conductive pattern, forming a conductive layer for a gate electrode and a gate hard mask layer over the resulting structure including the conductive pattern, and patterning the gate hard mask layer and the conductive layer for the gate electrode to form a gate in the gate region of the substrate.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: November 16, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Kyung-Doo Kang
  • Patent number: 7833870
    Abstract: A semiconductor device is fabricated having a stack gate structure where a first gate electrode, a second gate electrode and a gate hard mask are stacked. The stack gate structure secures a contact open margin while reducing a loss of the gate hard mask during a self-aligned contact (SAC) etching process of forming a landing plug contact. An intermediate connection layer is formed in a landing plug contact region between the first gate electrodes. Furthermore, the occurrence of a bridge between a gate and a contact can be prevented while forming the landing plug contact. A conductive material is filled into a gate region including a recess between intermediate connection layers to form the first gate electrode. The second gate electrode and the gate hard mask are formed during a gate-patterning process using a gate mask, even though misalignment occurs between the gate and the contact.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: November 16, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Kyung-Doo Kang
  • Publication number: 20090170301
    Abstract: A semiconductor device is fabricated having a stack gate structure where a first gate electrode, a second gate electrode and a gate hard mask are stacked. The stack gate structure secures a contact open margin while reducing a loss of the gate hard mask during a self-aligned contact (SAC) etching process of forming a landing plug contact. An intermediate connection layer is formed in a landing plug contact region between the first gate electrodes. Furthermore, the occurrence of a bridge between a gate and a contact can be prevented while forming the landing plug contact. A conductive material is filled into a gate region including a recess between intermediate connection layers to form the first gate electrode. The second gate electrode and the gate hard mask are formed during a gate-patterning process using a gate mask, even though misalignment occurs between the gate and the contact.
    Type: Application
    Filed: November 11, 2008
    Publication date: July 2, 2009
    Applicant: Hynix Semiconductor Inc.
    Inventor: Kyung-Doo KANG
  • Publication number: 20090023277
    Abstract: A method for fabricating a semiconductor device, the method includes forming an isolation layer defining an active region over a substrate, forming a conductive layer over the substrate including the isolation layer, patterning the conductive layer to form a conductive pattern over the active region defined on both sides of a gate region, forming insulation spacers on a sidewall of the conductive pattern, forming a conductive layer for a gate electrode and a gate hard mask layer over the resulting structure including the conductive pattern, and patterning the gate hard mask layer and the conductive layer for the gate electrode to form a gate in the gate region of the substrate.
    Type: Application
    Filed: June 30, 2008
    Publication date: January 22, 2009
    Applicant: Hynix Semiconductor Inc.
    Inventor: Kyung-Doo KANG
  • Publication number: 20060001611
    Abstract: A plasma display panel, which effectively compensates for the lowest maximum brightness level of a sub-pixel, is disclosed.
    Type: Application
    Filed: June 29, 2005
    Publication date: January 5, 2006
    Inventors: Kyung-Doo Kang, Won-Ju Yi