Patents by Inventor Dong Kee Lee

Dong Kee Lee 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: 9806185
    Abstract: A non-volatile memory device and a method of manufacturing the same are provided. The device includes a substrate including a cell region and a peripheral region, a gate pattern formed over the substrate in the peripheral region, a multilayered structure formed over the gate pattern in the peripheral region, the multilayered structure including interlayer insulating layers and material layers for sacrificial layers, and a capping layer formed between the gate pattern and the multilayered structure in the peripheral region to cover the substrate, the capping layer configured to prevent diffusion of impurities from the material layers for the sacrificial layers into the substrate in the peripheral region.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: October 31, 2017
    Assignee: SK Hynix Inc.
    Inventor: Dong Kee Lee
  • Publication number: 20160155509
    Abstract: A memory string includes a pass transistor, first memory cells connected in series to a drain terminal of the pass transistor, and first to kth memory cell groups connected in parallel to a source terminal of the pass transistor and each including a plurality of second memory cells connected in series. Here, ‘k’ denotes an integer that is equal to or greater than ‘2’.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 2, 2016
    Inventors: Sung Wook JUNG, Dong Kee LEE, Hyun Seung YOO, Yu Jin PARK
  • Patent number: 9286983
    Abstract: A memory string includes a pass transistor, first memory cells connected in series to a drain terminal of the pass transistor, and first to kth memory cell groups connected in parallel to a source terminal of the pass transistor and each including a plurality of second memory cells connected in series. Here, ‘k’ denotes an integer that is equal to or greater than ‘2’.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: March 15, 2016
    Assignee: SK Hynix Inc.
    Inventors: Sung Wook Jung, Dong Kee Lee, Hyun Seung Yoo, Yu Jin Park
  • Patent number: 9236426
    Abstract: Disclosed is a semiconductor device having a substrate including first and second regions. First interlayer insulation layers and conductive patterns alternately are stacked on a first region of the substrate. A second interlayer insulation layer covers the first interlayer insulation layers and the conductive patterns. A resistor is formed in the second interlayer insulation layer in the second region of the substrate.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: January 12, 2016
    Assignee: SK Hynix Inc.
    Inventor: Dong Kee Lee
  • Publication number: 20150228709
    Abstract: Disclosed is a semiconductor device having a substrate including first and second regions. First interlayer insulation layers and conductive patterns alternately are stacked on a first region of the substrate. A second interlayer insulation layer covers the first interlayer insulation layers and the conductive patterns. A resistor is formed in the second interlayer insulation layer in the second region of the substrate.
    Type: Application
    Filed: April 22, 2015
    Publication date: August 13, 2015
    Inventor: Dong Kee LEE
  • Patent number: 9040374
    Abstract: Disclosed is a semiconductor device having a substrate including first and second regions. First interlayer insulation layers and conductive patterns alternately are stacked on a first region of the substrate. A second interlayer insulation layer covers the first interlayer insulation layers and the conductive patterns. A resistor is formed in the second interlayer insulation layer in the second region of the substrate.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: SK Hynix Inc.
    Inventor: Dong Kee Lee
  • Publication number: 20150124530
    Abstract: A memory string includes a pass transistor, first memory cells connected in series to a drain terminal of the pass transistor, and first to kth memory cell groups connected in parallel to a source terminal of the pass transistor and each including a plurality of second memory cells connected in series. Here, ‘k’ denotes an integer that is equal to or greater than ‘2’.
    Type: Application
    Filed: March 20, 2014
    Publication date: May 7, 2015
    Applicant: SK hynix Inc.
    Inventors: Sung Wook JUNG, Dong Kee LEE, Hyun Seung YOO, Yu Jin PARK
  • Patent number: 8829595
    Abstract: A 3-dimensional non-volatile memory device, a memory system including the same, and a method of manufacturing the same comprise vertical channel layers protruding from a substrate, a plurality of interlayer insulating layers and a plurality of conductive layers alternately formed along the vertical channel layers, a charge trap layer surrounding the vertical channel layers, the charge trap layer having a smaller thickness in a plurality of first regions, interposed between the plurality of conductive layers and the vertical channel layers, than in a plurality of second regions, interposed between the plurality of interlayer insulating layers and the vertical channel layers and a blocking insulating layer formed in each of the plurality of first regions, between the plurality of conductive layers and the charge trap layer.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 9, 2014
    Assignee: SK Hynix Inc.
    Inventor: Dong Kee Lee
  • Publication number: 20140166963
    Abstract: Disclosed is a semiconductor device having a substrate including first and second regions. First interlayer insulation layers and conductive patterns alternately are stacked on a first region of the substrate. A second interlayer insulation layer covers the first interlayer insulation layers and the conductive patterns. A resistor is formed in the second interlayer insulation layer in the second region of the substrate.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 19, 2014
    Applicant: SK HYNIX INC.
    Inventor: Dong Kee LEE
  • Publication number: 20140061748
    Abstract: A non-volatile memory device and a method of manufacturing the same are provided. The device includes a substrate including a cell region and a peripheral region, a gate pattern formed over the substrate in the peripheral region, a multilayered structure formed over the gate pattern in the peripheral region, the multilayered structure including interlayer insulating layers and material layers for sacrificial layers, and a capping layer formed between the gate pattern and the multilayered structure in the peripheral region to cover the substrate, the capping layer configured to prevent diffusion of impurities from the material layers for the sacrificial layers into the substrate in the peripheral region.
    Type: Application
    Filed: December 14, 2012
    Publication date: March 6, 2014
    Applicant: SK HYNIX INC.
    Inventor: Dong Kee LEE
  • Patent number: 8648409
    Abstract: A method for fabricating a non-volatile memory device includes forming a channel link layer and an isolation layer surrounding the channel link layer over a substrate, forming a stack structure having interlayer dielectric layers that are alternately stacked with gate electrode layers over the channel link layer and the isolation layer, and forming a pair of channels connected to the channel link layer through the stack structure, and a memory layer interposed between the channel and the stack structure.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 11, 2014
    Assignee: Hynix Semiconductor Inc.
    Inventors: Han-Soo Joo, Dong-Kee Lee, Sang-Hyun Oh
  • Publication number: 20130161724
    Abstract: A 3-dimensional non-volatile memory device, a memory system including the same, and a method of manufacturing the same comprise vertical channel layers protruding from a substrate, a plurality of interlayer insulating layers and a plurality of conductive layers alternately formed along the vertical channel layers, a charge trap layer surrounding the vertical channel layers, the charge trap layer having a smaller thickness in a plurality of first regions, interposed between the plurality of conductive layers and the vertical channel layers, than in a plurality of second regions, interposed between the plurality of interlayer insulating layers and the vertical channel layers and a blocking insulating layer formed in each of the plurality of first regions, between the plurality of conductive layers and the charge trap layer.
    Type: Application
    Filed: August 30, 2012
    Publication date: June 27, 2013
    Inventor: Dong Kee LEE
  • Publication number: 20120223382
    Abstract: A method for fabricating a non-volatile memory device includes forming a channel link layer and an isolation layer surrounding the channel link layer over a substrate, forming a stack structure having interlayer dielectric layers that are alternately stacked with gate electrode layers over the channel link layer and the isolation layer, and forming a pair of channels connected to the channel link layer through the stack structure, and a memory layer interposed between the channel and the stack structure.
    Type: Application
    Filed: September 21, 2011
    Publication date: September 6, 2012
    Inventors: Han-Soo Joo, Dong-Kee Lee, Sang-Hyun Oh
  • Patent number: 7813280
    Abstract: Disclosed herein is a system and method for estimating an Internet-wide transmission path and transmission delay. The system includes indexing construction means configured to function as storage for storing the results of actual measurement of transmission delay for all destinations on the Internet, and configured to, in order to search for necessary actual measurement results using Autonomous System (AS) numbers, translate IP addresses constituting the actual measurement results into AS numbers and index respective path segments with AS numbers, mapping means for mapping the IP addresses of queried two points to AS numbers, AS path estimation means for estimating an AS path between the two AS numbers, and path stitching means for searching for respective path segments constituting the estimated AS path, stitching the found path segments together and stitching IP paths corresponding to the AS path, thereby obtaining a plurality of stitched paths and corresponding transmission delay.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: October 12, 2010
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sue Moon, Dong Kee Lee, Keon Jang, Chang Hyun Lee
  • Patent number: 7429512
    Abstract: A method of fabricating a flash memory device. A DDD ion is implanted into a high voltage PMOS transistor and into source and drain junctions of a cell transistor in order to facilitate a pinch-off phenomenon in the gate to drain overlap region and also increase the number of hot carriers. Accordingly, a program characteristic can be improved, a depletion width between source and drain junctions of a cell can be narrowed and the leakage current can be reduced.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: September 30, 2008
    Assignee: Hynix Semiconductor Inc.
    Inventor: Dong Kee Lee
  • Patent number: 7384844
    Abstract: A method of fabricating a flash memory device includes defining a high voltage region and a low voltage region on a substrate. The high voltage region provides an area for one or more first transistors configured to operation at a first voltage, the low voltage region providing an area for one or more second transistors configured to operation at a second voltage that is lower than the first voltage, each first transistor having a gate and a source/drain region on each side of the gate. A first impurity region is formed as part of the source/drain region, the first impurity region having a first depth from an upper surface of the substrate, the first impurity region being of first conductivity having a first impurity concentration.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: June 10, 2008
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jeong Hwan Park, Tae Gyun Kim, Dong Kee Lee
  • Publication number: 20080102587
    Abstract: A method of manufacturing a high voltage device includes forming a junction region in a semiconductor substrate. An insulating layer is formed over the semiconductor substrate. A portion of the insulating layer is etched so that the junction region is exposed. Arsenic is implanted into the exposed junction region to form plug ion implantation regions. A plug is formed on the plug ion implantation regions into which arsenic has been implanted.
    Type: Application
    Filed: December 28, 2006
    Publication date: May 1, 2008
    Applicant: Hynix Semiconductor Inc.
    Inventors: Ji Hyun Seo, Dong Kee Lee
  • Patent number: 7361564
    Abstract: A method of manufacturing a high-voltage device DDD (Double Doped Drain) ion implantation process is performed at a tilt angle in order to form a smooth junction profile. Accordingly, the intensity of an electric field can be reduced and breakdown voltage margin can be secured.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: April 22, 2008
    Assignee: Hynix Semiconductor Inc.
    Inventor: Dong Kee Lee
  • Publication number: 20070073040
    Abstract: The present invention relates to anti-obesity polypeptides for restraining the generation of adipose tissue in vivo. The anti-obesity polypeptides can be used as obesity preventive vaccines or treating agents and in curing diabetes.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 29, 2007
    Inventors: Man-Wook Hur, Dong-Kee Lee
  • Patent number: 7034360
    Abstract: Provided is a high voltage transistor in a flash memory device comprising: a source/drain junction of a DDD structure consisting of a high-concentration impurity region and a low-concentration impurity region surrounding the high-concentration impurity region, the high-concentration impurity region being formed in parallel with a gate electrode at a distance spaced by a location in which a contact hole is formed, and having a rectangular shape whose width is the same as or wider than that of the contact hole and whose length is the same as or narrower than that of an active region through which the gate electrode passes. Accordingly, a current density to pass the gate electrode neighboring the contact hole portion and a current density to pass the gate electrode at a portion where the contact hole cannot be formed become uniform. A uniform and constant saturation current can be obtained regardless of the number of the contact hole.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: April 25, 2006
    Assignee: Hynix Semiconductor Inc.
    Inventors: Yong Wook Kim, Dong Kee Lee, Hee Hyun Chang