Patents by Inventor Su Ock Chung

Su Ock Chung 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: 20130037894
    Abstract: In a method for fabricating a magnetic tunnel junction, a fixed layer, a tunnel insulating layer, a free layer, and an anti-etch layer are formed on a substrate. A sacrificial layer having a hole is formed on the anti-etch layer. An upper electrode is buried in the hole. The sacrificial layer is removed. The anti-etch layer, the free layer, the tunnel insulating layer, and the fixed layer are etched using the upper electrode as a mask.
    Type: Application
    Filed: December 23, 2011
    Publication date: February 14, 2013
    Inventor: Su Ock CHUNG
  • Patent number: 8193588
    Abstract: A method for fabricating a semiconductor device comprises: forming a gate pattern over a silicon active region and an insulating layer, which form a semiconductor substrate; removing the silicon active region exposed between the gate patterns; and filling a space between the gate patterns to form a plug.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: June 5, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Su Ock Chung
  • Publication number: 20110198697
    Abstract: A method for fabricating a semiconductor device comprises: forming a gate pattern over a silicon active region and an insulating layer, which form a semiconductor substrate; removing the silicon active region exposed between the gate patterns; and filling a space between the gate patterns to form a plug.
    Type: Application
    Filed: April 14, 2011
    Publication date: August 18, 2011
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Su Ock Chung
  • Patent number: 7947541
    Abstract: A method for fabricating a semiconductor device comprises: forming a gate pattern over a silicon active region and an insulating layer, which form a semiconductor substrate; removing the silicon active region exposed between the gate patterns; and filling a space between the gate patterns to form a plug.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: May 24, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Su Ock Chung
  • Patent number: 7911030
    Abstract: A resistive memory device includes: a substrate, an insulation layer arranged over the substrate, a first electrode plug penetrating the insulation layer from the substrate, having a portion protruded out of an upper portion of the insulation layer, and having peaks at edges of the protruded portion, a resistive layer disposed over the insulation layer and covering the first electrode plug, and a second electrode arranged over the resistive layer.
    Type: Grant
    Filed: December 27, 2008
    Date of Patent: March 22, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Su-Ock Chung
  • Publication number: 20100148243
    Abstract: A semiconductor device comprises an active region including a first active area to be a source/drain and a second active area to be a gate, and a device isolation region defining the active region. The first active area is obtained by growing a semiconductor substrate located between the gates as a seed layer, and formed to have a larger line-width than that of the second active area in a longitudinal direction of the gate.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 17, 2010
    Applicant: Hynix Semiconductor Inc.
    Inventor: Su Ock CHUNG
  • Publication number: 20100109084
    Abstract: Disclosed herein is a semiconductor device having an enhanced floating body and a fabrication method for increasing operational stability of the device. The method includes depositing a fin structure on a silicon-on-insulator, forming a gate pattern covering the fin structure, and forming conductive regions in the silicon-on-insulator exposed at both sides of the gate pattern to compartmentalize a floating body of each transistor.
    Type: Application
    Filed: December 29, 2008
    Publication date: May 6, 2010
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Su Ock Chung
  • Patent number: 7705419
    Abstract: A fuse box of a semiconductor device includes a plurality of metal fuses formed on a first interlayer dielectric of a semiconductor substrate and previously removed in blowing regions thereof; a conductive oxidation layer formed to cover removed blowing regions of the metal fuses; a second interlayer dielectric formed on the first interlayer dielectric including the conductive oxide layer; and a plurality of plugs formed in the second interlayer dielectric to be brought into contact with the metal fuses which are removed in the blowing regions thereof.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: April 27, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Su Ock Chung
  • Patent number: 7662691
    Abstract: A semiconductor device comprises an active region including a first active area to be a source/drain and a second active area to be a gate, and a device isolation region defining the active region. The first active area is obtained by growing a semiconductor substrate located between the gates as a seed layer, and formed to have a larger line-width than that of the second active area in a longitudinal direction of the gate.
    Type: Grant
    Filed: October 14, 2007
    Date of Patent: February 16, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventor: Su Ock Chung
  • Publication number: 20100019218
    Abstract: A resistive memory device includes: a substrate, an insulation layer arranged over the substrate, a first electrode plug penetrating the insulation layer from the substrate, having a portion protruded out of an upper portion of the insulation layer, and having peaks at edges of the protruded portion, a resistive layer disposed over the insulation layer and covering the first electrode plug, and a second electrode arranged over the resistive layer.
    Type: Application
    Filed: December 27, 2008
    Publication date: January 28, 2010
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Su-Ock Chung
  • Publication number: 20090267150
    Abstract: A method for fabricating a semiconductor device comprises: forming a gate pattern over a silicon active region and an insulating layer, which form a semiconductor substrate; removing the silicon active region exposed between the gate patterns; and filling a space between the gate patterns to form a plug.
    Type: Application
    Filed: December 2, 2008
    Publication date: October 29, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Su Ock Chung
  • Publication number: 20090230472
    Abstract: A method for manufacturing a semiconductor device that has a floating body transistor may include: etching a SOI substrate to expose a BOX region, epitaxially growing sidewalls of the substrate and contacting the grown silicon to a landing plug poly to form source/drain regions. The method reduces the occurrence of a punch-through phenomenon between the source and the drain without decreasing the thickness of the SOI substrate, and also facilitates junction isolation.
    Type: Application
    Filed: August 27, 2008
    Publication date: September 17, 2009
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Su Ock Chung
  • Publication number: 20080290402
    Abstract: A semiconductor device comprises an active region including a first active area to be a source/drain and a second active area to be a gate, and a device isolation region defining the active region. The first active area is obtained by growing a semiconductor substrate located between the gates as a seed layer, and formed to have a larger line-width than that of the second active area in a longitudinal direction of the gate.
    Type: Application
    Filed: October 14, 2007
    Publication date: November 27, 2008
    Applicant: Hynix Semiconductor Inc.
    Inventor: Su Ock CHUNG
  • Publication number: 20080023788
    Abstract: A fuse box of a semiconductor device includes a plurality of metal fuses formed on a first interlayer dielectric of a semiconductor substrate and previously removed in blowing regions thereof; a conductive oxidation layer formed to cover removed blowing regions of the metal fuses; a second interlayer dielectric formed on the first interlayer dielectric including the conductive oxide layer; and a plurality of plugs formed in the second interlayer dielectric to be brought into contact with the metal fuses which are removed in the blowing regions thereof.
    Type: Application
    Filed: April 3, 2007
    Publication date: January 31, 2008
    Inventor: Su Ock Chung
  • Patent number: 7087533
    Abstract: A method for fabricating a semiconductor device, wherein a multi-layered hard mask layer having a stacked structure of nitride film/oxide film/nitride film is disclosed. The method for fabricating a semiconductor device comprises the steps of: forming a gate insulating film and a conductive layer for gate electrode; forming a multi-layered hard mask layer on the conductive layer, wherein each layer of the multi-layered hard mask layer is formed of materials different from one another; etching the structure to form a stacked structure of a gate insulating film pattern, a gate electrode and a hard mask layer pattern; forming an insulating film spacer; forming an interlayer insulating film on the entire surface; etching the interlayer insulating film to form a landing plug contact hole; forming a conductive layer for landing plug on the entire surface; and planarizing the conductive layer for a landing plug to form a landing plug.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: August 8, 2006
    Assignee: Hynix Semiconductor Inc.
    Inventor: Su Ock Chung
  • Publication number: 20040127034
    Abstract: A method for fabricating a semiconductor device, wherein a multi-layered hard mask layer having a stacked structure of nitride film/oxide film/nitride film is disclosed. The method for fabricating a semiconductor device comprises the steps of: forming a gate insulating film and a conductive layer for gate electrode; forming a multi-layered hard mask layer on the conductive layer, wherein each layer of the multi-layered hard mask layer is formed of materials different from one another; etching the structure to form a stacked structure of a gate insulating film pattern, a gate electrode and a hard mask layer pattern; forming an insulating film spacer; forming an interlayer insulating film on the entire surface; etching the interlayer insulating film to form a landing plug contact hole; forming a conductive layer for landing plug on the entire surface; and planarizing the conductive layer for a landing plug to form a landing plug.
    Type: Application
    Filed: June 30, 2003
    Publication date: July 1, 2004
    Inventor: Su Ock Chung
  • Patent number: 6699746
    Abstract: The present invention discloses a method for manufacturing a semiconductor device. In the method for manufacturing the semiconductor device, a contact plug connected to a predetermined region for a bit line contact and a storage electrode contact is formed in a cell region of a semiconductor substrate before a source/drain region is formed in a peripheral circuit region of the semiconductor substrate using an epitaxially grown silicon film in a high temperature process, to obtain a contact plug having a high filling characteristic and a low contact resistance. In addition, additional ion-implantation process of a P type impurity in the subsequent bit line contact formation can be omitted to simplify the fabrication process. The method is suitable for the high speed merged DRAM logic process to achieve the high speed operation of the semiconductor device, and improves a process yield and reliability of the semiconductor device.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: March 2, 2004
    Assignee: Hynix Semiconductor Inc.
    Inventors: Su Ock Chung, Sang Don Lee
  • Publication number: 20030124776
    Abstract: The present invention discloses a method for manufacturing a semiconductor device. In the method for manufacturing the semiconductor device, a contact plug connected to a predetermined region for a bit line contact and a storage electrode contact is formed in a cell region of a semiconductor substrate before a source/drain region is formed in a peripheral circuit region of the semiconductor substrate using an epitaxially grown silicon film in a high temperature process, to obtain a contact plug having a high filling characteristic and a low contact resistance. In addition, additional ion-implantation process of a P type impurity in the subsequent bit line contact formation can be omitted to simplify the fabrication process. The method is suitable for the high speed merged DRAM logic process to achieve the high speed operation of the semiconductor device, and improves a process yield and reliability of the semiconductor device.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 3, 2003
    Inventors: Su Ock Chung, Sang Don Lee