Patents by Inventor Yong Won Choi

Yong Won Choi 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: 20200131041
    Abstract: Disclosed are a method of manufacturing graphene and an apparatus therefor. The method of manufacturing graphene and the apparatus therefor according to the present disclosure allow production of high-quality graphene in a simple manner in a short time without addition of a separate additive.
    Type: Application
    Filed: August 14, 2019
    Publication date: April 30, 2020
    Inventors: Ho Seong NA, Joo Young KIM, Min Soo LEE, Yong Won CHOI
  • Patent number: 10553464
    Abstract: A method for controlling a semiconductor manufacturing facility includes measuring output change amounts of differential pressure sensors in the facility when pressure conditions change by a number of fans. The fans are then classified into different groups and subgroups and control sequences of the subgroups are determined based on the change amounts. Difference values are then calculated, and a control signal is generated to adjust the rotation speed of the fans.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Won Jeong, Yi Jin, Chang Gi Min, Jin Woo Lee, Seok Heo, Yong Won Choi, Yun Jong Choi
  • Patent number: 10546765
    Abstract: A wafer perforating device includes a chuck stage configured to receive a wafer, a housing spaced apart in a vertical direction on the chuck stage, wherein at least one of the housing and the chuck stage moves in a first horizontal direction, and the housing and the chuck stage intersect each other on the first direction, a displacement sensor fixed within the housing and configured to measure a displacement with a surface of the wafer at a perforating point spaced apart periodically in the first direction of the wafer and a laser module fixed within the housing and configured to irradiate a laser into a perforating depth determined according to the displacement at the perforating point. The displacement sensor determines whether an upper particle and a lower particle are present at the perforating point by considering a step height of the displacement, and ignores the displacement of the perforating point with the presence of an upper particle.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: January 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung Whan Oh, Yeon Woo Choi, Won Yup Ko, Min Seok Moon, Won Ki Park, Seung Hwan Lee, Yong Won Choi
  • Patent number: 10442034
    Abstract: A wafer cutting apparatus includes a stage to support a wafer, a cutter, and a sensor. The cutter irradiates the wafer with a beam in a first direction to cut the wafer. The sensor is spaced apart from the cutter in a second direction different from the first direction, and measures a spaced distance between the wafer and the cutter. The sensor measures the spaced distance between the wafer and the cutter along a second cutting line parallel to a first cutting line while the cutter cuts the wafer along the first cutting line on the wafer.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: October 15, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoung Whan Oh, Yeon Woo Choi, In Hwan Kim, Won Ki Park, Ho Youl Lee, Yong Won Choi
  • Patent number: 10446525
    Abstract: A semiconductor package includes a first semiconductor chip including a first through-silicon via (TSV), a second semiconductor chip stacked on the first semiconductor chip and including a second TSV, and a non-conductive film formed between the first semiconductor chip and the second semiconductor chip. The non-conductive film includes two layers having different viscosities.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 15, 2019
    Assignee: Samsung Electronic Co., Ltd.
    Inventors: Yong-won Choi, Won-keun Kim, Myung-sung Kang, Gwang-sun Seo
  • Publication number: 20190176291
    Abstract: Provided is a load cup including a cup having an internal space, a pedestal provided in the internal space, able to be lifted up and down, and loading a wafer onto or unloading a wafer from a polishing head, and a plurality of arrangement parts having a plurality of fastening portions disposed around the pedestal, and moved horizontally in a direction of a center of the pedestal, and arrangement part bodies coupled to the plurality of fastening portions, respectively, and rotated or reciprocated so as to contact a lateral surface of the polishing head, adjusting a center of the wafer to be aligned with a center of the polishing head. A polishing process may then be performed on a layer formed on the wafer.
    Type: Application
    Filed: June 28, 2018
    Publication date: June 13, 2019
    Inventors: Jieun YANG, Dong-il YOON, Taemin EARMME, Gui Hyun CHO, Seok HEO, Jong Hwi SEO, Yong Won CHOI
  • Publication number: 20190137451
    Abstract: A method for determining a position of a fault of equipment includes receiving a plurality of sound source signals from a plurality of sound source inputting apparatuses, determining an abnormal operation of the equipment by analyzing at least one sound source signal among the sound source signals, and extracting abnormal sound source signals from the sound source signals. The abnormal sound source signals are indicative of abnormal operation of the equipment. The method further includes determining a position of the abnormal operation based on a time difference between the abnormal sound source signals.
    Type: Application
    Filed: August 6, 2018
    Publication date: May 9, 2019
    Inventors: Kyoung-Whan OH, Won-Yup KO, Won-Ki PARK, Ho-Youl LEE, Young-IL JANG, Yeon-Woo CHOI, Yong-Won CHOI
  • Publication number: 20190088515
    Abstract: A method for controlling a semiconductor manufacturing facility includes measuring output change amounts of differential pressure sensors in the facility when pressure conditions change by a number of fans. The fans are then classified into different groups and subgroups and control sequences of the subgroups are determined based on the change amounts. Difference values are then calculated, and a control signal is generated to adjust the rotation speed of the fans.
    Type: Application
    Filed: April 11, 2018
    Publication date: March 21, 2019
    Inventors: Jae Won JEONG, Yi JIN, Chang Gi MIN, Jin Woo LEE, Seok HEO, Yong Won CHOI, Yun Jong CHOI
  • Publication number: 20180350779
    Abstract: A semiconductor package includes a first semiconductor chip including a first through-silicon via (TSV), a second semiconductor chip stacked on the first semiconductor chip and including a second TSV, and a non-conductive film formed between the first semiconductor chip and the second semiconductor chip. The non-conductive film includes two layers having different viscosities.
    Type: Application
    Filed: July 31, 2018
    Publication date: December 6, 2018
    Inventors: Yong-won CHOI, Won-keun KIM, Myung-sung KANG, Gwang-sun SEO
  • Patent number: 10043780
    Abstract: A semiconductor package includes a first semiconductor chip including a first through-silicon via (TSV), a second semiconductor chip stacked on the first semiconductor chip and including a second TSV, and a non-conductive film formed between the first semiconductor chip and the second semiconductor chip. The non-conductive film includes two layers having different viscosities.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: August 7, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-won Choi, Won-keun Kim, Myung-sung Kang, Gwang-sun Seo
  • Patent number: 9991234
    Abstract: A semiconductor package includes a substrate, a plurality of semiconductor chips stacked on the substrate, and a plurality of bonding layers bonded to lower surfaces of the plurality of semiconductor chips. The plurality of bonding layers may be divided into a plurality of groups, each having different physical properties depending on a distance from the substrate.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: June 5, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gwang Sun Seo, Myung Sung Kang, Won Keun Kim, Jin Woo Park, Yong Won Choi
  • Publication number: 20180076060
    Abstract: A wafer perforating device includes a chuck stage configured to receive a wafer, a housing spaced apart in a vertical direction on the chuck stage, wherein at least one of the housing and the chuck stage moves in a first horizontal direction, and the housing and the chuck stage intersect each other on the first direction, a displacement sensor fixed within the housing and configured to measure a displacement with a surface of the wafer at a perforating point spaced apart periodically in the first direction of the wafer and a laser module fixed within the housing and configured to irradiate a laser into a perforating depth determined according to the displacement at the perforating point. The displacement sensor determines whether an upper particle and a lower particle are present at the perforating point by considering a step height of the displacement, and ignores the displacement of the perforating point with the presence of an upper particle.
    Type: Application
    Filed: March 30, 2017
    Publication date: March 15, 2018
    Inventors: Kyoung Whan OH, Yeon Woo CHOI, Won Yup KO, Min Seok MOON, Won Ki PARK, Seung Hwan LEE, Yong Won CHOI
  • Publication number: 20180012866
    Abstract: A semiconductor package includes a first semiconductor chip including a first through-silicon via (TSV), a second semiconductor chip stacked on the first semiconductor chip and including a second TSV, and a non-conductive film formed between the first semiconductor chip and the second semiconductor chip. The non-conductive film includes two layers having different viscosities.
    Type: Application
    Filed: February 16, 2017
    Publication date: January 11, 2018
    Inventors: Yong-won CHOI, Won-keun KIM, Myung-sung KANG, Gwang-sun SEO
  • Publication number: 20170365582
    Abstract: A semiconductor package includes a substrate, a plurality of semiconductor chips stacked on the substrate, and a plurality of bonding layers bonded to lower surfaces of the plurality of semiconductor chips. The plurality of bonding layers may be divided into a plurality of groups, each having different physical properties depending on a distance from the substrate.
    Type: Application
    Filed: January 9, 2017
    Publication date: December 21, 2017
    Inventors: Gwang Sun Seo, Myung Sung Kang, Won Keun Kim, Jin Woo Park, Yong Won Choi
  • Patent number: 9820701
    Abstract: The present invention relates to an X-ray targeting device which includes a frame installed at an X-ray generator of an X-ray imaging device which outputs X-rays toward a patient to be measured, and a light radiation unit installed at the frame, and radiating guide light in accordance with a direction in which the X-rays are output to display a radiated position or radiated range of the X-rays with respect to the patient. According to the present invention, since an X-ray targeting device includes a light radiation unit radiating guide light in accordance with a radiated direction of X-rays, a worker can easily identify the radiated direction or the radiated range of the X-rays, thereby saving time and effort required for X-ray imaging.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: November 21, 2017
    Assignee: LINKOPTICS CO., LTD.
    Inventors: Yong Won Choi, Hyo Gi Seo, Keum Yeon Choi, Joon Seok Lee
  • Publication number: 20170209960
    Abstract: A wafer cutting apparatus includes a stage to support a wafer, a cutter, and a sensor. The cutter irradiates the wafer with a beam in a first direction to cut the wafer. The sensor is spaced apart from the cutter in a second direction different from the first direction, and measures a spaced distance between the wafer and the cutter. The sensor measures the spaced distance between the wafer and the cutter along a second cutting line parallel to a first cutting line while the cutter cuts the wafer along the first cutting line on the wafer.
    Type: Application
    Filed: September 30, 2016
    Publication date: July 27, 2017
    Inventors: Kyoung Whan OH, Yeon Woo CHOI, In Hwan KIM, Won Ki PARK, Ho Youl LEE, Yong Won CHOI
  • Publication number: 20170178945
    Abstract: A substrate processing system includes an index module including wafer carriers. First and second heat processing units are disposed adjacent to the index module. Each of the first and second heat processing units includes a plurality of first heat processing plates sequentially stacked. First and second transfer robots are disposed adjacent to the first and second heat processing units, respectively. Each of the first and second transfer robots is movable along a vertical transfer path and to rotate. First and second coating units are disposed adjacent to first sides of the first and second transfer robots, respectively. Each of the first and second coating units includes a plurality of coating devices sequentially stacked. First and second bake units are disposed adjacent to second sides of the first and second transfer robots, respectively. Each of the first and second bake units includes a plurality of second heat processing plates sequentially stacked.
    Type: Application
    Filed: November 10, 2016
    Publication date: June 22, 2017
    Applicant: SEMES CO. LTD.
    Inventors: Won-Guk SEO, Yong-Won CHOI, Sang-Jin LEE, Yong-Bum JUNG, Seok HEO
  • Patent number: 9657385
    Abstract: A method of manufacturing a thermochromic substrate, with which transmittance can be increased. The method includes the steps of forming a first thin film as a coating on a base substrate, the refractive index of the first thin film being different from that of a VO2 thin film; forming a pre-thermochromic thin film by coating the first thin film with pure vanadium; forming a second thin film as a coating on the pre-thermochromic thin film, the refractive index of the second thin film being different from that of a VO2 thin film; and heat-treating a resultant stack that includes the base substrate, the first thin film, the pre-thermochromic thin film and the second thin film.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: May 23, 2017
    Assignee: Corning Precision Materials Co., Ltd.
    Inventors: Yong Won Choi, Yung-Jin Jung, Hyun Bin Kim, Seulgi Bae
  • Publication number: 20160213338
    Abstract: The present invention relates to an X-ray targeting device which includes a frame installed at an X-ray generator of an X-ray imaging device which outputs X-rays toward a patient to be measured, and a light radiation unit installed at the frame, and radiating guide light in accordance with a direction in which the X-rays are output to display a radiated position or radiated range of the X-rays with respect to the patient. According to the present invention, since an X-ray targeting device includes a light radiation unit radiating guide light in accordance with a radiated direction of X-rays, a worker can easily identify the radiated direction or the radiated range of the X-rays, thereby saving time and effort required for X-ray imaging.
    Type: Application
    Filed: November 17, 2015
    Publication date: July 28, 2016
    Inventors: Yong Won CHOI, Hyo Gi SEO, Keum Yeon CHOI, Joon Seok LEE
  • Patent number: 9376541
    Abstract: A non-conductive material layer, selected from a non-conductive film and a non-conductive polymer paste, and containing a dispersion of zinc (Zn) particles is disclosed, together with semiconductor packages including the non-conductive material layer. The non-conductive material layer contains zinc (Zn) particles having an average particle diameter of about 1 nm to about 200 nm in a non-conductive polymer base material of a film type, and a semiconductor package includes the non-conductive film. By using the non-conductive film and/or the non-conductive paste containing the zinc dispersion, e a semiconductor package having excellent electric connection properties and high reliability may be manufactured through simple processes at low manufacturing costs.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: June 28, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Un-byoung Kang, Kyung-wook Paik, Tae-Je Cho, Young-kun Jee, Sun-kyoung Seo, Yong-won Choi, Ji-won Shin