Patents by Inventor Don-Woo Lee

Don-Woo 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: 20240366579
    Abstract: Disclosed herein are a pharmaceutical composition for prevention, alleviation, or treatment of any disease selected from the group consisting of type 2 diabetes mellitus, hyperinsulinemia, impaired glucose tolerance disorder, and insulin resistance disorder, wherein the pharmaceutical composition includes a GPR40 agonist and an SGLT2 inhibitor, the GPR40 agonist being a compound represented by Formula 1, a racemate of the compound, an enantiomer of the compound, a diastereomer of the compound, or a pharmaceutically acceptable salt of the compound, the racemate, the enantiomer or the diastereomer, a method of preparing the same, and a method of treating type 2 diabetes mellitus and the like using the same.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 7, 2024
    Inventors: Jong Min YOON, Don Gil LEE, In Gyu JE, Hong Chul YOON, Joon Tae PARK, Kyung Mi AN, Jung Woo LEE, Haeng Jin SONG, Da Hae HONG
  • Patent number: 8648637
    Abstract: A slew rate boost circuit for an output buffer and an output buffer circuit for a source driver having the same are provided. In an output buffer including a pull-up unit providing a buffer output signal in a first level by receiving a buffer input signal and performing pull-up operation and a pull-down unit providing a buffer output signal in a second level having opposite phase from the first level by receiving the buffer input signal and performing pull-down operation, the slew rate boost circuit includes a first comparator generating a first boost signal to boost pull-up operation of the pull-up unit of the output buffer by inputting a first input signal and a second input signal and a second comparator generating a second boost signal to boost pull-down operation of the pull-down unit of the output buffer by inputting the first input signal and the second input signal.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: February 11, 2014
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Min-sung Kim, Il-kwon Chang, Ji-ho Lew, Young-chul Kim, Joon-yul Yun, Don-woo Lee, So-youn Kim, Kyung-won Min, Jae-hoon Lee
  • Publication number: 20120013378
    Abstract: A slew rate boost circuit for an output buffer and an output buffer circuit for a source driver having the same are provided. In an output buffer including a pull-up unit providing a buffer output signal in a first level by receiving a buffer input signal and performing pull-up operation and a pull-down unit providing a buffer output signal in a second level having opposite phase from the first level by receiving the buffer input signal and performing pull-down operation, the slew rate boost circuit includes a first comparator generating a first boost signal to boost pull-up operation of the pull-up unit of the output buffer by inputting a first input signal and a second input signal and a second comparator generating a second boost signal to boost pull-down operation of the pull-down unit of the output buffer by inputting the first input signal and the second input signal.
    Type: Application
    Filed: June 2, 2011
    Publication date: January 19, 2012
    Inventors: Min-sung KIM, II-kwon CHANG, Ji-ho LEW, Young-chul KIM, Joon-yul YUN, Don-woo LEE, So-youn Kim, Kyung-won MIN, Jae-hoon LEE
  • Patent number: 7544991
    Abstract: A non-volatile memory device and methods of manufacturing and operating the same are provided. In a method of manufacturing a non-volatile memory device, a substrate having a stepped portion that may include a first horizontal face, a second horizontal face lower than the first horizontal face, and a vertical face connected between the first and second horizontal faces may be prepared. A first impurity region may be formed under the first horizontal face. A tunnel insulation layer may be continuously formed on the vertical face and the second horizontal face. A floating gate electrode having a tip higher than the first horizontal face may be formed on the tunnel insulation layer. A dielectric layer may be formed on the floating gate electrode. The floating gate electrode may be covered with a control gate electrode. A second impurity region horizontally spaced apart from the floating gate electrode may be formed under the second horizontal face.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: June 9, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Woo Kim, Jong-Hyon Ahn, Don-Woo Lee
  • Patent number: 7375391
    Abstract: A semiconductor device includes a substrate divided into a memory cell region and a logic region. A split gate electrode structure is formed in a memory cell region of a substrate. A silicon oxide layer is formed on a sidewall of the split gate electrode structure and a surface of the substrate. A word line is formed on the silicon oxide layer that is positioned on the sidewall of the split gate electrode structure. The word line has an upper width and a lower width. The lower width is greater than the upper width. A logic gate pattern is formed on a logic region of the substrate. The logic gate pattern has a thickness thinner than the lower width of the word line.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: May 20, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Moon, Jae-Min Yu, Don-Woo Lee, Chul-Soon Kwon, In-Gu Yoon, Yong-Sun Lee, Jae-Hyun Park
  • Publication number: 20080093649
    Abstract: A non-volatile memory device and methods of manufacturing and operating the same are provided. In a method of manufacturing a non-volatile memory device, a substrate having a stepped portion that may include a first horizontal face, a second horizontal face lower than the first horizontal face, and a vertical face connected between the first and second horizontal faces may be prepared. A first impurity region may be formed under the first horizontal face. A tunnel insulation layer may be continuously formed on the vertical face and the second horizontal face. A floating gate electrode having a tip higher than the first horizontal face may be formed on the tunnel insulation layer. A dielectric layer may be formed on the floating gate electrode. The floating gate electrode may be covered with a control gate electrode. A second impurity region horizontally spaced apart from the floating gate electrode may be formed under the second horizontal face.
    Type: Application
    Filed: January 26, 2007
    Publication date: April 24, 2008
    Inventors: Jin-Woo Kim, Jong-Hyon Ahn, Don-Woo Lee
  • Patent number: 7205194
    Abstract: A method of fabricating a flash memory cell having a split gate structure. A sacrificial layer is formed on a floating gate layer formed on a semiconductor substrate. The sacrificial layer is etched to form an opening exposing a portion of the floating gate layer. A gate interlayer insulating layer pattern is formed inside the opening. After removing the sacrificial layer pattern and etching the floating gate layer (using the gate interlayer insulating layer pattern as an etch mask), a floating gate is formed under the gate interlayer insulating layer pattern. A control gate is formed overlapping a portion of the floating gate.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: April 17, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Sun Lee, Jae-Min Yu, Don-Woo Lee, Jung-Hun Cho, Chul-Soon Kwon, Jung-Ho Moon, In-Gu Yoon, Jae-Hyun Park
  • Patent number: 7195933
    Abstract: A semiconductor device having a measuring pattern that enhances measuring reliability and a method of measuring the semiconductor device using the measuring pattern. The semiconductor device includes a semiconductor substrate having a chip area in which an integrated circuit is formed, and a scribe area surrounding the chip area. The semiconductor device also includes a measuring pattern formed in the scribe area and having a surface sectional area to include a beam area in which measuring beams are projected, and a dummy pattern formed in the measuring pattern to reduce the surface sectional area of the measuring pattern. The surface sectional area of the dummy pattern occupies from approximately 5% to approximately 15% of a surface sectional area of the beam area.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: March 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Wook Park, Jae-Min Yu, Chul-Soon Kwon, Jin-Woo Kim, Jae-Hyun Park, Yong-Hee Kim, Don-Woo Lee, Dai-Geun Kim, Joo-Chan Kim, Kook-Min Kim, Eui-Youl Ryu
  • Patent number: 7081380
    Abstract: A method of forming a conductive pattern of a semiconductor device includes forming a conductive layer is on a substrate, forming a polishing protection layer on the substrate including over the conductive layer, and forming a step compensation layer on the polishing protection layer to reduce the step presented by the layer that is the polishing protection layer. The conductive layer is the exposed by removing select portions of the step compensation layer and the polishing protection layer. The conductive pattern is ultimately formed on the substrate by etching the exposed conductive layer. By planarization the intermediate structure several times once the step compensation layer is formed, a highly uniform conductive layer is sure to be formed.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: July 25, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Don-Woo Lee, Chul-Soon Kwon, Chang-Yup Lee
  • Publication number: 20060027858
    Abstract: A semiconductor device includes a substrate divided into a memory cell region and a logic region. A split gate electrode structure is formed in a memory cell region of a substrate. A silicon oxide layer is formed on a sidewall of the split gate electrode structure and a surface of the substrate. A word line is formed on the silicon oxide layer that is positioned on the sidewall of the split gate electrode structure. The word line has an upper width and a lower width. The lower width is greater than the upper width. A logic gate pattern is formed on a logic region of the substrate. The logic gate pattern has a thickness thinner than the lower width of the word line.
    Type: Application
    Filed: October 11, 2005
    Publication date: February 9, 2006
    Inventors: Jung-Ho Moon, Jae-Min Yu, Don-Woo Lee, Chul-Soon Kwon, In-Gu Yoon, Yong-Sun Lee, Jae-Hyun Park
  • Patent number: 6974748
    Abstract: A semiconductor device includes a substrate divided into a memory cell region and a logic region. A split gate electrode structure is formed in a memory cell region of a substrate. A silicon oxide layer is formed on a sidewall of the split gate electrode structure and a surface of the substrate. A word line is formed on the silicon oxide layer that is positioned on the sidewall of the split gate electrode structure. The word line has an upper width and a lower width. The lower width is greater than the upper width. A logic gate pattern is formed on a logic region of the substrate. The logic gate pattern has a thickness thinner than the lower width of the word line.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: December 13, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Moon, Jae-Min Yu, Don-Woo Lee, Chul-Soon Kwon, In-Gu Yoon, Yong-Sun Lee, Jae-Hyun Park
  • Publication number: 20050230786
    Abstract: A semiconductor device having a measuring pattern that enhances measuring reliability and a method of measuring the semiconductor device using the measuring pattern. The semiconductor device includes a semiconductor substrate having a chip area in which an integrated circuit is formed, and a scribe area surrounding the chip area. The semiconductor device also includes a measuring pattern formed in the scribe area and having a surface sectional area to include a beam area in which measuring beams are projected, and a dummy pattern formed in the measuring pattern to reduce the surface sectional area of the measuring pattern. The surface sectional area of the dummy pattern occupies from approximately 5% to approximately 15% of a surface sectional area of the beam area.
    Type: Application
    Filed: June 21, 2005
    Publication date: October 20, 2005
    Inventors: Sang-Wook Park, Jae-Min Yu, Chul-Soon Kwon, Jin-Woo Kim, Jae-Hyun Park, Yong-Hee Kim, Don-Woo Lee, Dai-Geun Kim, Joo-Chan Kim, Kook-Min Kim, Eui-Youl Ryu
  • Patent number: 6924505
    Abstract: A semiconductor device having a measuring pattern that enhances measuring reliability and a method of measuring the semiconductor device using the measuring pattern. The semiconductor device includes a semiconductor substrate having a chip area in which an integrated circuit is formed, and a scribe area surrounding the chip area. The semiconductor device also includes a measuring pattern formed in the scribe area and having a surface sectional area to include a beam area in which measuring beams are projected, and a dummy pattern formed in the measuring pattern to reduce the surface sectional area of the measuring pattern. The surface sectional area of the dummy pattern occupies from approximately 5% to approximately 15% of a surface sectional area of the beam area.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: August 2, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Wook Park, Jae-Min Yu, Chul-Soon Kwon, Jin-Woo Kim, Jae-Hyun Park, Yong-Hee Kim, Don-Woo Lee, Dai-Geun Kim, Joo-Chan Kim, Kook-Min Kim, Eui-Youl Ryu
  • Publication number: 20050064661
    Abstract: A method of fabricating a flash memory cell having a split gate structure. A sacrificial layer is formed on a floating gate layer formed on a semiconductor substrate. The sacrificial layer is etched to form an opening exposing a portion of the floating gate layer. A gate interlayer insulating layer pattern is formed inside the opening. After removing the sacrificial layer pattern and etching the floating gate layer (using the gate interlayer insulating layer pattern as an etch mask), a floating gate is formed under the gate interlayer insulating layer pattern. A control gate is formed overlapping a portion of the floating gate.
    Type: Application
    Filed: June 24, 2004
    Publication date: March 24, 2005
    Inventors: Yong-Sun Lee, Jae-Min Yu, Don-Woo Lee, Jung-Hun Cho, Chul-Soon Kwon, Jung-Ho Moon, In-Gu Yoon, Jae-Hyun Park
  • Publication number: 20050042828
    Abstract: A semiconductor device includes a substrate divided into a memory cell region and a logic region. A split gate electrode structure is formed in a memory cell region of a substrate. A silicon oxide layer is formed on a sidewall of the split gate electrode structure and a surface of the substrate. A word line is formed on the silicon oxide layer that is positioned on the sidewall of the split gate electrode structure. The word line has an upper width and a lower width. The lower width is greater than the upper width. A logic gate pattern is formed on a logic region of the substrate. The logic gate pattern has a thickness thinner than the lower width of the word line.
    Type: Application
    Filed: August 18, 2004
    Publication date: February 24, 2005
    Inventors: Jung-Ho Moon, Jae-Min Yu, Don-Woo Lee, Chul-Soon Kwon, In-Gu Yoon, Yong-Sun Lee, Jae-Hyun Park
  • Publication number: 20050035433
    Abstract: A semiconductor device having a measuring pattern that enhances measuring reliability and a method of measuring the semiconductor device using the measuring pattern. The semiconductor device includes a semiconductor substrate having a chip area in which an integrated circuit is formed, and a scribe area surrounding the chip area. The semiconductor device also includes a measuring pattern formed in the scribe area and having a surface sectional area to include a beam area in which measuring beams are projected, and a dummy pattern formed in the measuring pattern to reduce the surface sectional area of the measuring pattern. The surface sectional area of the dummy pattern occupies from approximately 5% to approximately 15% of a surface sectional area of the beam area.
    Type: Application
    Filed: June 2, 2004
    Publication date: February 17, 2005
    Inventors: Sang-Wook Park, Jae-Min Yu, Chul-Soon Kwon, Jin-Woo Kim, Jae-Hyun Park, Yong-Hee Kim, Don-Woo Lee, Dai-Geun Kim, Joo-Chan Kim, Kook-Min Kim, Eui-Youl Ryu
  • Patent number: 6800525
    Abstract: The method of manufacturing a split gate flash memory device includes the steps of (a) providing a semiconductor substrate of a conductivity type opposite to that of a first junction region; (b) sequentially forming a first dielectric film, a first conductive film, a second dielectric film and a third dielectric film on an overall upper face of the substrate; (c) etching the third dielectric film by a given thickness so as to expose the second dielectric film; (d) removing the exposed second dielectric film, and eliminating the remaining third dielectric film; (e) etching the first conductive film and the second dielectric film by a given thickness so as to partially expose the first conductive line and the first conductive film; (f) forming a fourth dielectric film on a portion of the exposed first conductive line and first conductive film; (g) eliminating the remaining second dielectric film remained, and exposing the first conductive film provided in a lower part thereof; and (h) etching the first dielectr
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: October 5, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eui-Youl Ryu, Jae-Min Yu, Jin-Woo Kim, Jae-Hyun Park, Yong-Hee Kim, Don-Woo Lee, Dai-Geun Kim, Sag-Wook Park, Joo-Chan Kim, Kook-Min Kim, Min-Soo Cho, Chul-Soon Kwon
  • Publication number: 20040171243
    Abstract: A method of forming a conductive pattern of a semiconductor device includes forming a conductive layer is on a substrate, forming a polishing protection layer on the substrate including over the conductive layer, and forming a step compensation layer on the polishing protection layer to reduce the step presented by the layer that is the polishing protection layer. The conductive layer is the exposed by removing select portions of the step compensation layer and the polishing protection layer. The conductive pattern is ultimately formed on the substrate by etching the exposed conductive layer. By planarization the intermediate structure several times once the step compensation layer is formed, a highly uniform conductive layer is sure to be formed.
    Type: Application
    Filed: February 23, 2004
    Publication date: September 2, 2004
    Inventors: Don-Woo Lee, Chul-Soon Kwon, Chang-Yup Lee
  • Publication number: 20040027861
    Abstract: The method of manufacturing a split gate flash memory device includes the steps of (a) providing a semiconductor substrate of a conductivity type opposite to that of a first junction region; (b) sequentially forming a first dielectric film, a first conductive film, a second dielectric film and a third dielectric film on an overall upper face of the substrate; (c) etching the third dielectric film by a given thickness so as to expose the second dielectric film; (d) removing the exposed second dielectric film, and eliminating the remaining third dielectric film; (e) etching the first conductive film and the second dielectric film by a given thickness so as to partially expose the first conductive line and the first conductive film; (f) forming a fourth dielectric film on a portion of the exposed first conductive line and first conductive film; (g) eliminating the remaining second dielectric film remained, and exposing the first conductive film provided in a lower part thereof; and (h) etching the first dielectr
    Type: Application
    Filed: July 31, 2003
    Publication date: February 12, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eui-Youl Ryu, Jae-Min Yu, Jin-Woo Kim, Jae-Hyun Park, Yong-Hee Kim, Don-Woo Lee, Dai-Geun Kim, Sag-Wook Park, Joo-Chan Kim, Kook-Min Kim, Min-Soo Cho, Chul-Soon Kwon
  • Patent number: 6392475
    Abstract: The present invention relates to an offset compensation apparatus in a differential amplifier circuit and an offset compensation method thereof that can compensate an offset in a differential amplifier circuit separately for each input signal. The offset compensation device preferably selectively couples a capacitor to an input of a differential amplifier to store an offset voltage. The offset compensation method preferably can operate by detecting an offset of the differential amplifier circuit, by storing the offset, by directly inputting the result of compensating the offset voltage for an input voltage into the differential amplifier and by outputting the output voltage corresponding to the input voltage without the offset voltage included. The differential amplifier circuit and the offset compensation method can further include an additional output stage coupled to a load.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: May 21, 2002
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventor: Don-Woo Lee