Patents by Inventor Choong-Ho Lee

Choong-Ho 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: 20110260227
    Abstract: A fin field effect transistor (fin FET) is formed using a bulk silicon substrate and sufficiently guarantees a top channel length formed under a gate, by forming a recess having a predetermined depth in a fin active region and then by forming the gate in an upper part of the recess. A device isolation film is formed to define a non-active region and a fin active region in a predetermined region of the substrate. In a portion of the device isolation film a first recess is formed, and in a portion of the fin active region a second recess having a depth shallower than the first recess is formed. A gate insulation layer is formed within the second recess, and a gate is formed in an upper part of the second recess. A source/drain region is formed in the fin active region of both sides of a gate electrode.
    Type: Application
    Filed: July 7, 2011
    Publication date: October 27, 2011
    Inventors: Keun-Nam Kim, Hung-Mo Yang, Choong-Ho Lee
  • Patent number: 8044451
    Abstract: Provided is a method of manufacturing a semiconductor device, by which a cell transistor formed on a cell array area of a semiconductor substrate employs a structure in which an electrode in the shape of spacers is used to form a gate and a multi-bit operation is possible using localized bits, and transistors having structures optimized to satisfy different requirements depending upon functions of the transistors can be formed on a peripheral circuit area which is the residual area of the semiconductor substrate. In this method, a cell transistor is formed on the cell array area.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-yong Choi, Choong-ho Lee, Dong-won Kim, Dong-gun Park
  • Patent number: 8044453
    Abstract: A non-volatile memory device includes field insulating layer patterns on a substrate to define an active region of the substrate, upper portions of the field insulating layer patterns protruding above an upper surface of the substrate, a tunnel insulating layer on the active region, a charge trapping layer on the tunnel insulating layer, a blocking layer on the charge trapping layer, first insulating layers on upper surfaces of the field insulating layer patterns, and a word line structure on the blocking layer and first insulating layers.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Suk-Kang Sung, Choong-Ho Lee, Dong-Uk Choi, Hee-Soo Kang
  • Publication number: 20110248907
    Abstract: A display apparatus having an improved function for encapsulating a display unit, and comprising a substrate, wherein the display unit is disposed on the substrate; an encapsulation unit facing the display unit, the encapsulation unit comprising: a metal layer; and a composite member; and a sealing unit disposed between the substrate and the encapsulation unit and separated from the display unit so as to adhere the substrate to the encapsulation unit, wherein the composite member comprises a resin matrix and carbon fibers, and wherein the metal layer is disposed between the substrate and the composite member.
    Type: Application
    Filed: January 10, 2011
    Publication date: October 13, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Min LEE, Kie-Hyun Nam, Choong-Ho Lee, Dong-Ki Lee, Hoon Kim
  • Patent number: 8030698
    Abstract: Provided is a nonvolatile memory device having a three dimensional structure. The nonvolatile memory device includes a plurality of stacked semiconductor layers and a plurality of memory cell transistors which is formed on each of a plurality of semiconductor layers and serially connected. Memory cell transistors disposed on different semiconductor layers are serially connected to include one cell string forming a current path in a plurality of semiconductor layers, a first selection transistor serially connected to one edge portion of the cell string and a second selection transistor serially connected to the other edge portion of the cell string.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Ho Lim, Choong-Ho Lee, Hye-Jin Cho
  • Publication number: 20110220019
    Abstract: A mask frame assembly for thin film deposition, the mask frame assembly including a frame having an opening; a plurality of masks having deposition patterns, the masks being fixed to the frame such that the deposition patterns extend over the opening; and a balance stick being fixed to the frame such that the balance stick is between two of the plurality of masks, the balance stick made from an elastically tensile material.
    Type: Application
    Filed: June 8, 2010
    Publication date: September 15, 2011
    Inventors: Choong-Ho Lee, Yoon-Chan Oh, Jung-Min Lee
  • Patent number: 7982246
    Abstract: Provided are a selection transistor and a method of fabricating the same. A selection transistor can be formed on an active region in a semiconductor substrate to include a gate electrode that includes recessed portions of a sidewall of the gate electrode which are recessed inward adjacent lower portions of the gate electrode to define a T-shaped cross section of the gate electrode. A tunnel insulating layer can be located between the gate electrode and the active region.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: July 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-kyu Cho, Hee-soo Kang, Dong-uk Choi, Choong-ho Lee
  • Publication number: 20110168087
    Abstract: A mask frame assembly for thin film deposition includes a frame having an opening and at least two unit masks having end parts in a longitudinal direction fixed to the frame, each of the unit masks comprising first regions and second regions, the first regions having unit masking patterns, each of the unit masking patterns having a plurality of openings for thin film deposition, the unit masking pattern being spaced apart from each other, each of the second regions being interposed between a pair of adjacent ones of the first regions, the first regions having a first thickness from a first surface of the unit masks, and at least a portion of the second regions having a second thickness from a second surface of the unit masks opposite to the first surface of the unit masks, such that the first regions and the at least the portion of the second regions are offset from each other in a direction normal to the first and second surfaces.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 14, 2011
    Inventors: Choong-Ho Lee, Jung-Min Lee, Yoon-Chan Oh
  • Publication number: 20110170356
    Abstract: Methods of programming data in a non-volatile memory cell are provided. A memory cell according to some embodiments may include a gate structure that includes a tunnel oxide layer pattern, a floating gate, a dielectric layer and a control gate sequentially stacked on a substrate, impurity regions that are formed in the substrate at both sides of the gate structure, and a conductive layer pattern that is arranged spaced apart from and facing the floating gate. Embodiments of such methods may include applying a programming voltage to the control gate, grounding the impurity regions and applying a fringe voltage to the conductive layer pattern to generate a fringe field in the floating gate.
    Type: Application
    Filed: March 25, 2011
    Publication date: July 14, 2011
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Dong-Uk Choi
  • Patent number: 7978522
    Abstract: A non-volatile memory device includes a selection transistor coupled to a bit line. The device also includes a plurality of memory cells serially coupled to the selection transistor and at least one dummy cell located between the plurality of memory cells. The dummy cell is turned off during a programming operation of a memory cell located between the dummy cell and the selection transistor.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Dong-Uk Choi, Choong-Ho Lee, Sang-Gu Kang
  • Publication number: 20110140373
    Abstract: A frit sealing system and a method of manufacturing an organic light-emitting display (OLED) using the frit sealing system are disclosed. In one embodiment, the frit sealing system includes: a thermal expansion film formed on the second substrate to pressurize the second substrate when heat is applied to the frit and thermal expansion film, wherein the frit is interposed between the first and second substrates and a mask formed on the thermal expansion film.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 16, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Min Lee, Choong-Ho Lee
  • Publication number: 20110139357
    Abstract: A method of efficiently manufacturing a large-sized mask is disclosed. In one embodiment, the method includes: 1) providing a first mask member comprising i) a first pattern unit having a plurality of slits, ii) a first buffer unit spaced apart from the first pattern unit, and iii) a first bonding unit interconnecting the first pattern unit and the first buffer unit and 2) providing a second mask member comprising i) a second pattern unit having a plurality of slits, ii) a second buffer unit spaced apart from the second pattern unit, and iii) a second bonding unit interconnecting the second pattern unit and the second buffer unit. The method may further include contacting the first bonding unit and the second bonding unit; and connecting the first mask member to the second mask member while tensile forces are applied to the first mask member and the second mask member.
    Type: Application
    Filed: December 15, 2010
    Publication date: June 16, 2011
    Applicant: Samsung Mobile Display Co. Ltd.
    Inventors: Choong-Ho Lee, Yoon-Chan Oh, Seung-Ho Choi, Suk-Won Jung, Jung-Soo Rhee
  • Publication number: 20110140202
    Abstract: A flash memory device, including a cell array region where a plurality of memory cells are connected in series to a single cell string, the cell array region including a pocket p-well configured to accommodate the plurality of memory cells and an n-well configured to surround the pocket p-well, a first peripheral region where low-voltage (LV) and high-voltage (HV) switches are connected to the memory cells through a word line, and a second peripheral region where bulk voltage switches are connected to bulk regions of the LV and HV switches.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 16, 2011
    Inventors: Yoon-Moon PARK, Se-Jun Park, Suk-Kang Sung, Keon-Soo Kim, Jung-Dal Choi, Choong-Ho Lee, Jin-Hyun Shin, Seung-Wook Choi, Dong-Hoon Jang
  • Patent number: 7955884
    Abstract: A semiconductor package includes a semiconductor chip including a semiconductor substrate and a plurality of cell transistors arranged on the semiconductor substrate. Channel regions of the cell transistors have channel lengths that extend in a first direction, and the package further includes a supporting substrate having an upper surface on which the semiconductor chip is affixed. The supporting substrate is configured to bend in response to a temperature increase in a manner that applies a tensile stress to the channel regions of the semiconductor chip in the first direction. Related methods are also disclosed.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: June 7, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Hye-Jin Cho
  • Publication number: 20110129596
    Abstract: A deposition apparatus that improves deposition characteristics and the uniformity of a deposited layer, and a method of manufacturing an organic light emitting device using the deposition apparatus. The deposition apparatus includes: a base; a heat blocking layer formed on the base; a heat emitting layer patterned into stripes and formed on the heat blocking layer to heat a deposition material to be deposited; and a barrier rib formed and patterned on the heat blocking layer to define a space in which the deposition material is disposed.
    Type: Application
    Filed: June 16, 2010
    Publication date: June 2, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Min Lee, Choong-Ho Lee, Yoon-Chan Oh, Soo-Jin Park
  • Publication number: 20110123707
    Abstract: A thin film deposition apparatus including a deposition source having a crucible to contain a deposition material and a heater to heat and vaporize the deposition material; a nozzle unit disposed at a side of the deposition source along a first direction and having a plurality of nozzle slits to discharge the deposition material that was vaporized; a plurality of emission coefficient increasing units disposed toward the nozzle unit within the deposition source and increasing a quantity of motion of the deposition material that is discharged toward the nozzle unit; a patterning slit sheet disposed opposite to the nozzle unit and having a plurality of patterning slits arranged along the first direction; and a barrier plate assembly disposed between the nozzle unit and the patterning slit sheet along the first direction, and having a plurality of barrier plates that partition a space between the nozzle unit and the patterning slit sheet into a plurality of sub-deposition spaces.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Choong-Ho LEE, Jung-Min Lee, Jun-Sik Oh
  • Patent number: 7942716
    Abstract: A frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, and more particularly, a frit sealing system and a method of manufacturing an organic light emitting display device by using the frit sealing system, which includes a pressure member so as to physically pressurize a first substrate and a second substrate, thereby increasing adhesion of a frit when the first substrate and the second substrate are adhered to each other by using the frit.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: May 17, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jung-Min Lee, Seok-Joon Yoon, Choong-Ho Lee, Hee-Seong Jeong, Tae-Wook Kang, Won-Kyu Choe
  • Patent number: 7939408
    Abstract: A non-volatile memory device for 2-bit operation and a method of fabricating the same are provided. The non-volatile memory device includes an active region and a gate extending in a word line direction on a semiconductor substrate, and crossing each other repeatedly; a charge storage layer disposed below the gate, and confined at a portion where the gate and the active region cross; a charge blocking layer formed on the charge storage layer; a tunnel dielectric layer formed below the charge storage layer; first and second source/drain regions formed in the active region exposed by the gate; and first and second bit lines crossing the word line direction. The active region may be formed in a first zigzag pattern and/or the gate may be formed in a second zigzag pattern in symmetry with the first zigzag pattern.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: May 10, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung-yong Choi, Dong-gun Park, Yun-gi Kim, Choong-ho Lee, Young-mi Lee, Hye-jin Cho
  • Patent number: 7936600
    Abstract: Methods of programming data in a non-volatile memory cell are provided. A memory cell according to some embodiments may include a gate structure that includes a tunnel oxide layer pattern, a floating gate, a dielectric layer and a control gate sequentially stacked on a substrate, impurity regions that are formed in the substrate at both sides of the gate structure, and a conductive layer pattern that is arranged spaced apart from and facing the floating gate. Embodiments of such methods may include applying a programming voltage to the control gate, grounding the impurity regions and applying a fringe voltage to the conductive layer pattern to generate a fringe field in the floating gate.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: May 3, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Dong-Uk Choi
  • Publication number: 20110095377
    Abstract: In some embodiments, a semiconductor memory device includes a substrate that includes a cell array region and a peripheral circuit region. The semiconductor memory device further includes a device isolation pattern on the substrate. The device isolation pattern defines a first active region and a second active region within the cell array region and a third active region in the peripheral circuit region. The semiconductor memory device further includes a first common source region, a plurality of first source/drain regions, and a first drain region in the first active region. The semiconductor memory device further includes a second common source region, a plurality of second source/drain regions, and a second drain region in the second active region. The semiconductor memory device further includes a third source/drain region in the third active region. The semiconductor memory device further includes a common source line contacting the first and second common source regions.
    Type: Application
    Filed: January 5, 2011
    Publication date: April 28, 2011
    Inventors: Jong-Sun Sel, Jung-Dal Choi, Choong-Ho Lee, Ju-Hyuck Chung, Hee-Soo Kang, Dong-uk Choi