Patents by Inventor Kee-Jeung Lee

Kee-Jeung 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: 8319296
    Abstract: In a semiconductor device including a carbon-containing electrode and a method for fabricating the same, an electrode has a high work function due to a carbon-containing TiN layer contained therein. It is possible to provide a dielectric layer having a high permittivity and thus to reduce the leakage current by forming an electrode having a high work function. Also, sufficient capacitance of a capacitor can be secured by employing an electrode having a high work function and a dielectric layer having a high permittivity.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: November 27, 2012
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Kwan-Woo Do, Kee-Jeung Lee, Young-Dae Kim, Mi-Hyoung Lee, Jeong-Yeop Lee
  • Patent number: 8309416
    Abstract: A semiconductor device with reduced resistance of a buried bit line, and a method for fabricating the same. The method for fabricating a semiconductor device includes etching a semiconductor substrate to form a plurality of active regions which are separated from one another by trenches formed in between, forming a side contact on a sidewall of each active region, and forming metal bit lines, each filling a portion of a respective trench and connected to the side contact.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: November 13, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Eun-Shil Park, Yong-Seok Eun, Kee-Jeung Lee, Min-Soo Kim
  • Publication number: 20120273921
    Abstract: A semiconductor device includes a dielectric layer, where the dielectric layer includes a metal oxide layer, a metal nitride carbide layer including hydrogen therein, and a reduction prevention layer inserted between the metal nitride carbide layer and the dielectric layer.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 1, 2012
    Inventors: Kwan-Woo DO, Kee-Jeung Lee, Kyung-Woong Park, Kun-Hoon Baek, Ji-Hoon Ahn, Woo-Young Park
  • Patent number: 8298909
    Abstract: A capacitor includes a lower electrode, a dielectric layer, an upper electrode, and a ruthenium oxide layer. At least one of the lower electrode and the upper electrode is formed of a ruthenium layer, and the ruthenium oxide layer is disposed next to the ruthenium layer.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: October 30, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kwan-Woo Do, Jae-Sung Roh, Kee-Jeung Lee, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim, Kyung-Woong Park, Han-Sang Song
  • Patent number: 8288274
    Abstract: A noble metal layer is formed using ozone (O3) as a reaction gas.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: October 16, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Deok-Sin Kil, Kee-Jeung Lee, Young-Dae Kim, Jin-Hyock Kim, Kwan-Woo Do, Kyung-Woong Park, Jeong-Yeop Lee, Ja-Yong Kim
  • Publication number: 20120217619
    Abstract: A semiconductor device includes a triangle prism pillar having a first, a second, and a third sidewall surface, a bit line contacted with the first sidewall surface of the pillar, and a word line adjacent to the second sidewall surface of the pillar over the bit line.
    Type: Application
    Filed: December 28, 2011
    Publication date: August 30, 2012
    Inventors: Min-Soo Kim, Yong-Seok Eun, Kee-Jeung Lee, Eun-Shil Park, Tae-Yoon Kim
  • Publication number: 20120153406
    Abstract: A method for fabricating a semiconductor device includes forming a gate dielectric layer over a substrate, forming a dipole capping layer over the gate dielectric layer, stacking a metal gate layer and a polysilicon layer over the dipole capping layer, and forming a gate pattern by etching the polysilicon layer, the metal gate layer, the dipole capping layer, and the gate dielectric layer.
    Type: Application
    Filed: September 1, 2011
    Publication date: June 21, 2012
    Inventors: Woo-Young PARK, Kee-Jeung Lee, Tae-Yoon Kim, Yun-Hyuck Ji
  • Publication number: 20120146196
    Abstract: A semiconductor device includes a dielectric layer in which zirconium, hafnium, and a IV group element are mixed. A method for fabricating a capacitor includes forming a bottom electrode, forming the dielectric layer and forming a top electrode over the dielectric layer.
    Type: Application
    Filed: September 13, 2011
    Publication date: June 14, 2012
    Inventors: Kee-Jeung LEE, Kwon Hong, Kyung-Woong Park, Ji-Hoon Ahn
  • Publication number: 20120147519
    Abstract: A semiconductor device and a method of fabricating the same include an electrode having a nickel layer with impurities. The electrode having a nickel layer with impurities can be a gate electrode or a capacitor electrode. The electrode having a nickel layer with impurities may include a combination of a pure nickel layer and a nickel layer with impurities.
    Type: Application
    Filed: February 23, 2012
    Publication date: June 14, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Kwan-Woo DO, Kee-Jeung LEE, Deok-Sin KIL, Young-Dae KIM, Jin-Hyock KIM, Kyung-Woong PARK, Jeong-Yeop LEE
  • Publication number: 20120126308
    Abstract: A non-volatile memory device includes a plurality of memory cells stacked along a channel protruded from a substrate, a first select transistor connected to one end of the plurality of memory cells, a first interlayer dielectric layer for being coupled between a source line and the first select transistor, and a second interlayer dielectric layer disposed between the first select transistor and the one end of the plurality of memory cells, and configured to include a first recess region.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 24, 2012
    Inventors: Beom Yong KIM, Kwon HONG, Kee Jeung LEE, Ki Hong LEE
  • Patent number: 8148231
    Abstract: A semiconductor device and a method of fabricating the same include an electrode having a nickel layer with impurities. The electrode having a nickel layer with impurities can be a gate electrode or a capacitor electrode. The electrode having a nickel layer with impurities may include a combination of a pure nickel layer and a nickel layer with impurities.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: April 3, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kwan-Woo Do, Kee-Jeung Lee, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim, Kyung-Woong Park, Jeong-Yeop Lee
  • Patent number: 8134195
    Abstract: A semiconductor device, and a method of fabricating the semiconductor device, which is able to prevent a leaning phenomenon from occurring between the adjacent storage nodes. The method includes forming a plurality of multi-layered pillar type storage nodes each of which is buried in a plurality of mold layers, wherein the uppermost layers of the multi-layered pillar type storage nodes are fixed by a support layer, etching a portion of the support layer to form an opening, and supplying an etch solution through the opening to remove the multiple mold layers. A process of depositing and etching the mold layer by performing the process 2 or more times to form the multi-layered pillar type storage node. Thus, the desired capacitance is sufficiently secured and the leaning phenomenon is avoided between adjacent storage nodes.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: March 13, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kee-Jeung Lee, Jae-Sung Roh, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim, Kwan-Woo Do, Kyung-Woong Park, Jeong-Yeop Lee
  • Patent number: 8120180
    Abstract: A semiconductor device includes a semiconductor substrate, an insulation pattern on the semiconductor substrate, and an etch stop layer on the insulating pattern, the insulation pattern and the etch stop layer defining a contact hole that exposes the substrate, a first plug filled in a portion of the contact hole, a diffusion barrier layer formed above the first plug and in a bottom portion and on sidewalls of a remaining portion of the contact hole, a second plug fainted on the diffusion barrier layer and filled in the contact hole, and a storage node coupled to and formed on the second plug.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: February 21, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jin-Hyock Kim, Jae-Sung Roh, Seung-Jin Yeom, Kee-Jeung Lee, Han-Sang Song, Deok-Sin Kil, Young-Dae Kim
  • Patent number: 8084804
    Abstract: A capacitor with zirconium oxide and a method for fabricating the same are provided. The method includes: forming a storage node; forming a multi-layered dielectric structure on the storage node, the multi-layered dielectric structure including a zirconium oxide (ZrO2) layer and an aluminum oxide (Al2O3) layer; and forming a plate electrode on the multi-layered dielectric structure.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: December 27, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventor: Kee-jeung Lee
  • Patent number: 8062943
    Abstract: A capacitor with zirconium oxide and a method for fabricating the same are provided. The method includes: forming a storage node; forming a multi-layered dielectric structure on the storage node, the multi-layered dielectric structure including a zirconium oxide (ZrO2) layer and an aluminum oxide (Al2O3) layer; and forming a plate electrode on the multi-layered dielectric structure.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: November 22, 2011
    Assignee: Hynix Semiconductor
    Inventor: Kee-jeung Lee
  • Patent number: 8048757
    Abstract: A method for fabricating a capacitor includes forming an isolation layer over a cell region and a peripheral region of a substrate. The isolation layer forms a plurality of open regions in the cell region. Storage nodes are formed on surfaces of the open regions. An upper portion of the isolation layer is etched to expose upper outer walls of the storage nodes. A sacrificial pattern is formed over the isolation layer to enclose the upper outer walls of the storage nodes. The isolation layer in the peripheral region is etched to expose side portions of the resulting structure obtained after forming the sacrificial pattern in the cell region. With the sacrificial pattern supporting the storage nodes, the isolation layer in the cell region is removed. The sacrificial pattern is then removed.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 1, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Sung Roh, Kee-Jeung Lee, Han-Sang Song, Seung-Jin Yeom, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim
  • Patent number: 8048758
    Abstract: A method for fabricating a capacitor includes forming an isolation layer over a cell region and a peripheral region of a substrate. The isolation layer forms a plurality of open regions in the cell region. Storage nodes are formed on surfaces of the open regions. A sacrificial pattern is formed over the isolation layer and covers the cell region. The isolation layer is etched in the peripheral region to expose side portions of the resulting structure obtained after forming the sacrificial pattern in the cell region. With the sacrificial pattern supporting the storage nodes, the isolation layer in the cell region is removed. The sacrificial pattern is then removed.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 1, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Sung Roh, Kee-Jeung Lee, Han-Sang Song, Seung-Jin Yeom, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim
  • Patent number: 8035193
    Abstract: A capacitor includes a bottom electrode, a dielectric layer and a top electrode over a substrate. A RuXTiYOZ film is included in at least one of the bottom and top electrodes, where x, y and z are positive real numbers. A method of fabricating the capacitor through a sequential formation of a bottom electrode, a dielectric layer and a top electrode over a substrate includes forming a RuXTiYOZ film during a formation of at least one of the bottom electrode and top electrode, where x, y and z are positive real numbers.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: October 11, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kwan-Woo Do, Kee-Jeung Lee, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim, Kyung-Woong Park, Jeong-Yeop Lee
  • Patent number: 8017491
    Abstract: A method for fabricating a capacitor includes forming a sacrificial layer having a plurality of trenches on an upper portion of a substrate, forming storage nodes in the trenches, exposing upper portions of the storage nodes by removing a portion of the sacrificial layer, forming supporters to support the exposed upper portions of the storage nodes, removing the sacrificial layer under the supporters, and removing the supporters.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: September 13, 2011
    Assignee: Hynix Semiconductor Inc.
    Inventors: Kee-Jeung Lee, Jae-Sung Roh, Seung-Jin Yeom, Han-Sang Song, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim, Kwan-Woo Do
  • Publication number: 20110171807
    Abstract: A method for fabricating a capacitor includes forming an isolation layer over a cell region and a peripheral region of a substrate. The isolation layer forms a plurality of open regions in the cell region. Storage nodes are formed on surfaces of the open regions. An upper portion of the isolation layer is etched to expose upper outer walls of the storage nodes. A sacrificial pattern is formed over the isolation layer to enclose the upper outer walls of the storage nodes. The isolation layer in the peripheral region is etched to expose side portions of the resulting structure obtained after forming the sacrificial pattern in the cell region. With the sacrificial pattern supporting the storage nodes, the isolation layer in the cell region is removed. The sacrificial pattern is then removed.
    Type: Application
    Filed: March 22, 2011
    Publication date: July 14, 2011
    Applicant: Hynix Semiconductor Inc.
    Inventors: Jae-Sung Roh, Kee-Jeung Lee, Han-Sang Song, Seung-Jin Yeom, Deok-Sin Kil, Young-Dae Kim, Jin-Hyock Kim