Patents by Inventor Il-sang Lee

Il-sang 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: 12165721
    Abstract: A nonvolatile memory device includes a memory cell array having cell strings that each includes memory cells stacked on a substrate in a direction perpendicular to the substrate. A row decoder is connected with the memory cells through word lines. The row decoder applies a setting voltage to at least one word line of the word lines and floats the at least one word line during a floating time. A page buffer circuit is connected with the cell strings through bit lines. The page buffer senses voltage changes of the bit lines after the at least one word line is floated during the floating time and outputs a page buffer signal as a sensing result. A counter counts a number of off-cells in response to the page buffer signal. A detecting circuit outputs a detection signal associated with a defect cell based on the number of off-cells.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: December 10, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwangho Choi, Jin-Young Kim, Se Hwan Park, Il Han Park, Ji-Sang Lee, Joonsuc Jang
  • Patent number: 12160323
    Abstract: A method for performing sidelink groupcast transmission by a transmission terminal includes the steps of: classifying reception terminals belonging to a subject group into two or more subgroups; allocating different groupcast feedback schemes to the two or more subgroups; performing groupcast transmission to the reception terminals; and receiving feedback information from terminals belonging to at least one subgroup among the two or more subgroups according to the different groupcast feedback schemes.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 3, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung Hoon Lee, Ju Ho Park, Jun Hwan Lee, Il Gyu Kim, Jun Hyeong Kim, Go San Noh, Hee Sang Chung
  • Patent number: 11864407
    Abstract: A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. A dam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions. Each of the plurality of protrusions protrudes from the body part.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: January 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Oh June Kwon, Il Sang Lee, Doo Hwan Kim, Woo Yong Sung, Min Sang Kim, Jin Hwan Jeon, Seung Yong Song
  • Publication number: 20220158125
    Abstract: A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. A dam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions.
    Type: Application
    Filed: February 7, 2022
    Publication date: May 19, 2022
    Inventors: OH June Kwon, IL Sang Lee, Doo Hwan Kim, Woo Yong Sung, Min Sang Kim, Jin Hwan Jeon, Seung Yong Song
  • Patent number: 11245090
    Abstract: A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. Adam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions. Each of the plurality of protrusions protrudes from the body part.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: February 8, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Oh June Kwon, Il Sang Lee, Doo Hwan Kim, Woo Yong Sung, Min Sang Kim, Jin Hwan Jeon, Seung Yong Song
  • Publication number: 20200321553
    Abstract: A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. Adam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions.
    Type: Application
    Filed: June 22, 2020
    Publication date: October 8, 2020
    Inventors: OH JUNE KWON, IL SANG LEE, DOO HWAN KIM, WOO YONG SUNG, MIN SANG KIM, JIN HWAN JEON, SEUNG YONG SONG
  • Patent number: 10727434
    Abstract: A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. A dam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions. Each of the plurality of protrusions protrudes from the body part.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 28, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Oh June Kwon, Il Sang Lee, Doo Hwan Kim, Woo Yong Sung, Min Sang Kim, Jin Hwan Jeon, Seung Yong Song
  • Patent number: 10576582
    Abstract: A spot heater and a device for cleaning a wafer using the same are provided. The wafer cleaning device includes a heater chuck on which a wafer is mounted, the heater chuck configured to heat a bottom surface of the wafer; a chemical liquid nozzle configured to spray a chemical liquid on a top surface of the wafer for etching; and a spot heater configured to heat a spot of the top surface of the wafer.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Hoo Kim, Il-Sang Lee, Yong-sun Ko, Chang-Gil Ryu, Kun-Tack Lee, Hyo-San Lee
  • Patent number: 10332762
    Abstract: A chemical liquid supply apparatus includes a nozzle unit including a nozzle arm and an injection nozzle mounted in an end of the nozzle arm, a chemical liquid supply unit including a first chemical liquid tank accommodating a first chemical liquid and a second chemical liquid tank accommodating a second chemical liquid, and supplying the first chemical liquid and the second chemical liquid to the nozzle unit, and a mixer unit provided in the nozzle unit and discharging a process fluid by mixing the first chemical liquid and the second chemical liquid, wherein the mixer unit includes an in-line mixer mixing the first chemical liquid and the second chemical liquid that are continually injected from the chemical liquid supply unit, and a mixer pipe extending from the in-line mixer to the injection nozzle.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: June 25, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-hoo Kim, Il-sang Lee, In-gi Kim, Kyoung-hwan Kim, Hyo-san Lee, Sang-won Bae, Tae-hong Kim, Yong-jun Choi
  • Publication number: 20180311764
    Abstract: A spot heater and a device for cleaning a wafer using the same are provided. The wafer cleaning device includes a heater chuck on which a wafer is mounted, the heater chuck configured to heat a bottom surface of the wafer; a chemical liquid nozzle configured to spray a chemical liquid on a top surface of the wafer for etching; and a spot heater configured to heat a spot of the top surface of the wafer.
    Type: Application
    Filed: July 9, 2018
    Publication date: November 1, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Hoo KIM, Il-Sang LEE, Yong-sun KO, Chang-Gil RYU, Kun-Tack LEE, Hyo-San LEE
  • Patent number: 10029332
    Abstract: A spot heater and a device for cleaning a wafer using the same are provided. The wafer cleaning device includes a heater chuck on which a wafer is mounted, the heater chuck configured to heat a bottom surface of the wafer; a chemical liquid nozzle configured to spray a chemical liquid on a top surface of the wafer for etching; and a spot heater configured to heat a spot of the top surface of the wafer.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: July 24, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Hoo Kim, Il-Sang Lee, Yong-sun Ko, Chang-Gil Ryu, Kun-Tack Lee, Hyo-San Lee
  • Patent number: 9903651
    Abstract: A sealing member includes a body having a ring shape, a lower contacting portion protruding from a lower end of the body and having at least one recess, the recess provided in a lower surface of the lower contacting portion and extending in a radial direction of the body, and an outer contacting portion protruding outwards from the body along an outer side portion of the body.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: February 27, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Myung Jun, Yong-Sun Ko, Kun-Tack Lee, Il-Sang Lee, Ji-Hoon Jeong, Yong-Jhin Cho, Jin-Suk Hong
  • Publication number: 20180026225
    Abstract: A display device includes a substrate having a display area, in which an image is displayed, and a non-display area, in which no image is displayed. The non-display area is disposed on at least one side of the display area. A plurality of pixels is disposed in the display area. An encapsulation layer is disposed on the plurality of pixels. A dam unit is disposed in the non-display area. The dam unit includes a body part and a plurality of protrusions.
    Type: Application
    Filed: March 16, 2017
    Publication date: January 25, 2018
    Inventors: OH JUNE KWON, IL SANG LEE, DOO HWAN KIM, WOO YONG SUNG, MIN SANG KIM, JIN HWAN JEON, SEUNG YONG SONG
  • Patent number: 9598764
    Abstract: A method of fabricating a sputtering target includes preparing a first powder material including at least one of a tin oxide and a mesh-forming oxide; mixing the first powder material and a second powder material comprising carbon or a tin oxide to prepare a mixture; simultaneously performing a primary compression and primary sintering on the mixture in a reduction atmosphere; and simultaneously performing a secondary compression and secondary sintering on the mixture in the reduction atmosphere to prepare the sputtering target.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: March 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Wook Shin, Sun-Young Jung, Il-Sang Lee, Jin-Woo Park, Dong-Jin Kim
  • Publication number: 20170062242
    Abstract: A chemical liquid supply apparatus includes a nozzle unit including a nozzle arm and an injection nozzle mounted in an end of the nozzle arm, a chemical liquid supply unit including a first chemical liquid tank accommodating a first chemical liquid and a second chemical liquid tank accommodating a second chemical liquid, and supplying the first chemical liquid and the second chemical liquid to the nozzle unit, and a mixer unit provided in the nozzle unit and discharging a process fluid by mixing the first chemical liquid and the second chemical liquid, wherein the mixer unit includes an in-line mixer mixing the first chemical liquid and the second chemical liquid that are continually injected from the chemical liquid supply unit, and a mixer pipe extending from the in-line mixer to the injection nozzle.
    Type: Application
    Filed: June 3, 2016
    Publication date: March 2, 2017
    Inventors: YOUNG-HOO KIM, IL-SANG LEE, IN-GI KIM, KYOUNG-HWAN KIM, HYO-SAN LEE, SANG-WON BAE, TAE-HONG KIM, YONG-JUN CHOI
  • Patent number: 9416439
    Abstract: A method of fabricating a sputtering target is provided. The method includes preparing a first powder material, wherein the first powder material includes tin oxide; preparing a mixture by mixing the first powder material and a second powder material, wherein the second powder material includes carbon; and fabricating the sputtering target by compressing and sintering the mixture simultaneously in a reducing atmosphere.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: August 16, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Wook Sin, Sun-Young Jung, Il-Sang Lee, Jin-Woo Park, Dong-Jin Kim
  • Publication number: 20160071745
    Abstract: A spot heater and a device for cleaning a wafer using the same are provided. The wafer cleaning device includes a heater chuck on which a wafer is mounted, the heater chuck configured to heat a bottom surface of the wafer; a chemical liquid nozzle configured to spray a chemical liquid on a top surface of the wafer for etching; and a spot heater configured to heat a spot of the top surface of the wafer.
    Type: Application
    Filed: May 7, 2015
    Publication date: March 10, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Hoo KIM, Il-Sang LEE, Yong-sun KO, Chang-Gil RYU, Kun-Tack LEE, Hyo-San LEE
  • Patent number: 9196863
    Abstract: In order to provide a robust encapsulating structure, an organic light emitting display device, includes an organic light emitting display device, comprising a substrate, an organic light emitter on the substrate comprising a laminated structure of a first electrode, an organic light emitting layer, and a second electrode, a first inorganic film configured to cover the organic light emitter and being formed from a first inorganic mixture comprising tin oxide, phosphorus oxide and tin fluoride, and a second inorganic film configured to cover the first inorganic film and comprising tin oxide and phosphorus oxide.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: November 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Wook Sin, Seon-Young Jung, Il-Sang Lee, Dong-Jin Kim, Jin-Woo Park
  • Patent number: 9184412
    Abstract: An organic light emitting display apparatus includes a substrate and includes an organic light emitting device that overlaps the substrate and includes an organic layer. The organic light emitting display apparatus further includes a planarization layer that overlaps the organic light emitting device and includes an organic material, wherein the organic light emitting device is disposed between the substrate and the planarization layer. The organic light emitting display apparatus further includes an encapsulation layer that overlaps the planarization layer and includes an inorganic material, wherein the planarization layer is disposed between the organic light emitting device and a portion of the encapsulation layer. The organic light emitting display apparatus further includes an intermediate layer that is disposed between the planarization layer and the portion of the encapsulation layer.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: November 10, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Leonid Kaplan, Min-Soo Kim, Jin-Woo Park, Won-Sik Hyun, Ou-Hyen Kim, Il-Sang Lee, Sang-Wook Shin, Sun-Young Jung
  • Publication number: 20150176897
    Abstract: A sealing member includes a body having a ring shape, a lower contacting portion protruding from a lower end of the body and having at least one recess, the recess provided in a lower surface of the lower contacting portion and extending in a radial direction of the body, and an outer contacting portion protruding outwards from the body along an outer side portion of the body.
    Type: Application
    Filed: December 1, 2014
    Publication date: June 25, 2015
    Inventors: Yong-Myung JUN, Yong-Sun KO, Kun-Tack LEE, Il-Sang LEE, Ji-Hoon JEONG, Yong-Jhin CHO, Jin-Suk HONG