Patents by Inventor Tae-jung Lee

Tae-jung 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).

  • Publication number: 20120032269
    Abstract: Provided are a semiconductor integrated device and a method for fabricating the same. The semiconductor integrated circuit includes a semiconductor substrate including a first dopant, a first conductive layer pattern formed on the semiconductor substrate, an interlayer dielectric layer formed on the first conductive layer pattern, a second conductive layer pattern formed on the interlayer dielectric layer, and a first vacuum ultraviolet (VUV) blocking layer which blocks a VUV ray radiated to the semiconductor substrate.
    Type: Application
    Filed: October 13, 2011
    Publication date: February 9, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-ryul Chang, Tae-jung Lee, Sung-hoan Kim, Soo-cheol Lee
  • Publication number: 20120003805
    Abstract: A method of fabricating a semiconductor device includes forming a device isolation region on a semiconductor substrate to define an active region, forming a gate electrode on the active region and the device isolation region across the active region, and forming at least one gate electrode opening portion in the gate electrode so as to overlap an edge portion of the active region, wherein the gate electrode opening portion is simultaneously formed with the gate electrode.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 5, 2012
    Inventors: Kee-In Bang, Tae-Jung Lee, Myoung-Kyu Park
  • Patent number: 8058185
    Abstract: Provided are a semiconductor integrated device and a method for fabricating the same. The semiconductor integrated circuit includes a semiconductor substrate including a first dopant, a first conductive layer pattern formed on the semiconductor substrate, an interlayer dielectric layer formed on the first conductive layer pattern, a second conductive layer pattern formed on the interlayer dielectric layer, and a first vacuum ultraviolet (VUV) blocking layer which blocks a VUV ray radiated to the semiconductor substrate.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: November 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-ryul Chang, Tae-jung Lee, Sung-hoan Kim, Soo-cheol Lee
  • Patent number: 8050091
    Abstract: An electrically erasable and programmable read-only memory (EEPROM) is provided. The EEPROM includes a semiconductor substrate including spaced apart first, second and third active regions, a common floating gate traversing over the first through third active regions, source/drain regions formed in the third active region on opposite sides of the floating gate, a first interconnect connected to the first active region, a second interconnect connected to the second active region, and a third interconnect connected to either one of the source/drain regions.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geun-sook Park, Sang-bae Yi, Soo-cheol Lee, Ho-ik Hwang, Tae-jung Lee
  • Publication number: 20110248357
    Abstract: An integrated circuit device includes a substrate having adjacent first and second regions, and a device isolation structure in the substrate between the first and second regions. The first and second regions of the substrate may respectively include transistors configured to be driven at different operational voltages, and the device isolation structure may electrically separates the transistors of the first region from the transistors of the second region. The device isolation structure includes outer portions immediately adjacent to the first and second regions and an inner portion therebetween. The outer portions of the device isolation structure comprise a material having an etching selectivity with respect to that of the inner portion. Related devices and fabrication methods are also discussed.
    Type: Application
    Filed: January 31, 2011
    Publication date: October 13, 2011
    Inventors: Oh-kyum Kwon, Tae-Jung Lee, Sun-Hyun Kim
  • Publication number: 20110003148
    Abstract: The present invention relates to a cellulose fiber having a highly homogeneous section, particularly to a cellulose fiber with lower Coefficient of Variation of section diameter (CV(%)). Specifically, the present invention relates to a cellulose fiber wherein Coefficient of Variation of section diameter (CV(%)) of a mono-filament constituting a multi-filament prepared by dissolving a cellulose powder in liquid N-methylmorpholine N-oxide (hereinafter referred to “NMMO”) is below 2.5. According to the present invention, a lyocell multi-filament is produced comprising the steps of (i) preparing a spinning solution by homogeneously dispersing, swelling and dissolving cellulose powder in a NMMO solution; (ii) spinning the spinning solution into an air gap through a spinning nozzle; and (iii) coagulating the extruded-spun spinning solution in a coagulation bath. In particular, the coagulating step is adjusted by means of a coagulation coefficient in the range of 0.8 to 1.
    Type: Application
    Filed: December 10, 2007
    Publication date: January 6, 2011
    Inventors: Tae Jung Lee, Jae Shin Choi, Byoung Min Lee
  • Patent number: 7732048
    Abstract: The present invention relates to cellulose fiber containing 500 to 2000 of filaments and having homogeneous physical properties and the multi-filaments according to the present invention is characterized in that the strength and the breaking elongation of the multi-filaments are 4 to 9 g/d and 4 to 15%, respectively. In particular, the present invention is characterized in that each mono-filament selected 100 strands from every three part divided from multi-filaments has properties as following: (a) 3 to 9 g/d in average strength, 7 to 15% in average breaking elongation and 0.035 to 0.055 in by birefringence, (b) the differences of the above three parts are below 1.0 g/d in average strength, 1.5% in breaking elongation and 0.7 denier in denier, (c) the CV (%) (coefficient of variation) of the above three parts are below 10%, and (d) the birefringence differences of the above three parts are below 0.004.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: June 8, 2010
    Assignee: Hyosung Corporation
    Inventors: Ik-Hyun Kwon, Soo-Myung Choi, Tae-Jung Lee, Jae-Shik Choi
  • Publication number: 20100123245
    Abstract: A semiconductor integrated circuit device includes: an electrostatic discharge (ESD) impurity region formed in a substrate; a bump formed on the substrate; and a first wiring layer and a second wiring layer formed at the same level under the bump. The first and second wiring layers are separated from each other, and at least part of each of the first and second wiring layers are overlapped by the bump. The first wiring layer is electrically connected to the ESD impurity region and the bump, and the second wiring layer is insulated from the bump.
    Type: Application
    Filed: November 9, 2009
    Publication date: May 20, 2010
    Inventors: Tae-Jung Lee, Kee-In Bang, Myoung-Kyu Park, Kyoung-Eun Uhm
  • Patent number: 7713459
    Abstract: The present invention relates to cellulose fiber containing 500 to 2000 of filaments and having homogeneous physical properties and the multi-filaments according to the present invention is characterized in that the strength and the breaking elongation of the multi-filaments are 4 to 9 g/d and 4 to 15%, respectively. In particular, the present invention is characterized in that each mono-filament selected 100 strands from every three part divided from multi-filaments has properties as following: (a) 3 to 9 g/d in average strength, 7 to 15% in average breaking elongation and 0.035 to 0.055 in by birefringence, (b) the differences of the above three parts are below 1.0 g/d in average strength, 1.5% in breaking elongation and 0.7 denier in denier, (c) the CV (%) (coefficient of variation) of the above three parts are below 10%, and (d) the birefringence differences of the above three parts are below 0.004.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: May 11, 2010
    Assignee: HYOSUNG Corporation
    Inventors: Ik-Hyun Kwon, Soo-Myung Choi, Tae-Jung Lee, Jae-Shik Choi
  • Publication number: 20090310427
    Abstract: In one aspect, an electrically erasable and programmable read-only memory (EEPROM) is provided. The EEPROM includes a semiconductor substrate including spaced apart first, second and third active regions, a common floating gate traversing over the first through third active regions, source/drain regions formed in the third active region on opposite sides of the floating gate, a first interconnect connected to the first active region, a second interconnect connected to the second active region, and a third interconnect connected to either one of the source/drain regions.
    Type: Application
    Filed: August 18, 2009
    Publication date: December 17, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Geun-sook PARK, Sang-bae YI, Soo-cheol LEE, Ho-ik HWANG, Tae-jung LEE
  • Publication number: 20090288748
    Abstract: The present invention provides a lyocell raw cord prepared from at least 2-ply lyocell multifilaments, which gives a stress-strain curve exhibiting that (a) the lyocell raw cord has an elongation of 1.5% or less at an initial stress of 1.0 g/d, and an initial modulus value of 50 to 100 g/d; (b) has an elongation of 7% or less in a stress region of 1.0 g/d to 4.0 g/d; and (c) has an elongation of 1% or more at a tensile strength of 4.0 g/d to the breaking point, as measured in the dried state. The lyocell raw cord prepared according to the present invention can be used as industrial fibers, in particular, fibers for tire cords.
    Type: Application
    Filed: August 3, 2009
    Publication date: November 26, 2009
    Applicant: HYOSUNG CORPORATION
    Inventors: Seok-Jong Han, Soo-Myung Choi, Young-Soo Wang, Sung-Ryong Kim, Tae-Jung Lee
  • Publication number: 20090290417
    Abstract: A nonvolatile memory device including a plurality of word lines; a plurality of bit lines intersecting the word lines; a plurality of memory cells corresponding to intersections of the word lines and the bit lines; a common control gate line commonly connected to the memory cells; and a common erasing gate line commonly connected to the memory cells.
    Type: Application
    Filed: January 2, 2009
    Publication date: November 26, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Myoung-Kyu PARK, Byung-Sun KIM, Tae-Jung LEE, Dong-Ryul CHANG
  • Patent number: 7593261
    Abstract: An electrically erasable and programmable read-only memory (EEPROM) is provided. The EEPROM includes a semiconductor substrate including spaced apart first, second and third active regions, a common floating gate traversing over the first through third active regions, source/drain regions formed in the third active region on opposite sides of the floating gate, a first interconnect connected to the first active region, a second interconnect connected to the second active region, and a third interconnect connected to either one of the source/drain regions.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: September 22, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geun-sook Park, Sang-bae Yi, Soo-cheol Lee, Ho-ik Hwang, Tae-jung Lee
  • Publication number: 20090020844
    Abstract: Semiconductor device having an on-chip type electrostatic discharge (ESD) protection circuit and a method of manufacturing the same are provided. The on-chip type ESD protection circuit may include a first junction diode having a first conductive type region contacting a second conductive type region in a semiconductor substrate, and a first schottky diode having a metallic material layer arranged on and contacting the first conductive type region of the semiconductor substrate.
    Type: Application
    Filed: July 21, 2008
    Publication date: January 22, 2009
    Inventors: Myoung-kyu Park, Byung-sun Kim, Tae-jung Lee, Kee-in Bang
  • Publication number: 20090011234
    Abstract: The present invention relates to cellulose fiber containing 500 to 2000 of filaments and having homogeneous physical properties and the multi-filaments according to the present invention is characterized in that the strength and the breaking elongation of the multi-filaments are 4 to 9 g/d and 4 to 15%, respectively. In particular, the present invention is characterized in that each mono-filament selected 100 strands from every three part divided from multi-filaments has properties as following: (a) 3 to 9 g/d in average strength, 7 to 15% in average breaking elongation and 0.035 to 0.055 in by birefringence, (b) the differences of the above three parts are below 1.0 g/d in average strength, 1.5% in breaking elongation and 0.7 denier in denier, (c) the CV (%) (coefficient of variation) of the above three parts are below 10%, and (d) the birefringence differences of the above three parts are below 0.004.
    Type: Application
    Filed: September 23, 2005
    Publication date: January 8, 2009
    Applicant: HYOSUNG CORPORATION
    Inventors: Ik-Hyun Kwon, Soo-Myung Choi, Tae-Jung Lee, Jae-Shik Choi
  • Patent number: 7445992
    Abstract: A cell structure of a non-volatile memory device, which uses a nitride layer as a floating gate spacer, includes a gate stack and a floating gate transistor formed over a semiconductor substrate. The gate stack includes a first portion of a floating gate, a control gate formed over the first portion of the floating gate, and a non-nitride spacer adjacent to sidewalls of the first portion of floating gate. The floating gate transistor includes a second portion of the floating gate, which substantially overlaps a source and/or drain formed in the substrate. The application of ultraviolet rays to the non-nitride spacer of a programmed cell can causes the second portion of the floating gate to discharge, thereby easily erasing the programmed cell.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: November 4, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Jung Lee, Byung-Sun Kim, Joon-Hyung Lee
  • Patent number: 7419880
    Abstract: A field effect transistor includes a gate that is formed in a channel region of an active region defined on a substrate. A source is formed at a first surface portion of the active region that is adjacently disposed at a first side face of the gate. A drain is formed at a second surface portion of the active region that is opposite to the first surface portion with respect to the gate. The drain has a protruded portion that is protruded from a surface portion of the substrate.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: September 2, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Jung Lee, Soo-Cheol Lee, Dong-Ryul Chang
  • Patent number: 7378708
    Abstract: A field effect transistor includes a gate that is formed in a channel region of an active region defined on a substrate. A source is formed at a first surface portion of the active region that is adjacently disposed at a first side face of the gate. A drain is formed at a second surface portion of the active region that is opposite to the first surface portion with respect to the gate. The drain has a protruded portion that is protruded from a surface portion of the substrate.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: May 27, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Jung Lee, Soo-Cheol Lee, Dong-Ryul Chang
  • Patent number: 7348241
    Abstract: Provided are a cell structure of an EPROM device and a method for fabricating the same. The cell structure includes a gate stack, which includes a first floating gate, an insulating pattern including a nitride layer, and a control gate that are sequentially stacked on a semiconductor substrate, and includes a window for exposing the top surface or both sidewalls of the first floating gate on both sides of the control gate, so that charges of the first floating gate can be erased by ultraviolet rays. The cell structure further includes a floating gate transistor, which includes a gate insulating layer formed on the semiconductor substrate, a second floating gate that is formed on the gate insulating layer and is connected to the first floating gate in the gate stack, and a source/drain that is formed in the semiconductor substrate so as to be aligned to the second floating gate. In the cell structure, the window is formed on the top surface or both sidewalls of the first floating gate of the gate stack.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: March 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-hyung Lee, Byung-sun Kim, Tae-jung Lee
  • Publication number: 20080054516
    Abstract: The present invention relates to a method for producing a cellulose solution which is homogeneous at low temperatures, and to fiber produced by the method. More particularly, the invention relates to a production of a cellulose solution which is homogeneous at low temperatures, by dissolving a small amount of the cellulose powder in concentrated liquid N-methylmorpholine-N-oxide (NMMO) to lower the solidification temperature of NMMO, introducing the low-temperature, concentrated liquid NMMO solution having cellulose dissolved and the cellulose powder into a kneader, mixing and swelling the cellulose in the kneader without a process of reducing pressure to produce a paste, and then supplying the paste into an extruder to dissolve the paste in a homogeneous solution.
    Type: Application
    Filed: December 30, 2005
    Publication date: March 6, 2008
    Inventors: Ik-Hyun Kwon, Soo-Myung Choi, Young-Soo Wang, Sung-Ryong Kim, Tae-Jung Lee