Patents by Inventor Jae-Kwang Choi

Jae-Kwang 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).

  • Patent number: 11970566
    Abstract: Disclosed is a method of manufacturing a polyurethane filter foam having excellent air permeability, elasticity, and restoring force. In the method of manufacturing the polyurethane filter foam, the cell size of the filter foam is made regular by controlling the pressure by adjusting the diameter of the foaming head of a foaming machine, rather than adding a cell opener, cell irregularity caused by poor dispersion of the cell opener is alleviated, and air permeability, porosity, and compression set are excellent.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: April 30, 2024
    Assignees: HYUNDAI TRANSYS INC., CHIN YANG CO., LTD.
    Inventors: Jae Yong Ko, Seung Keon Woo, Young Tae Cho, Won Sug Choi, Sung Yoon Lee, Jae Kwang Lee, Jun Ho Song
  • Publication number: 20240090328
    Abstract: The present invention relates to a multi-component host material and an organic electroluminescent device comprising the same. By comprising a specific combination of the multi-component host compounds, the organic electroluminescent device according to the present invention can provide high luminous efficiency and excellent lifespan characteristics.
    Type: Application
    Filed: October 26, 2023
    Publication date: March 14, 2024
    Inventors: Hee-Choon AHN, Young-Kwang KIM, Su-Hyun LEE, Ji-Song JUN, Seon-Woo LEE, Chi-Sik KIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Jae-Hoon SHIM, Young-Jun CHO, Kyung-Joo LEE
  • Patent number: 10804160
    Abstract: A method for manufacturing a semiconductor device is provided. A first vertical structure and a second vertical structure are formed on a substrate. The second vertical structure is positioned right next to the first vertical structure. The second vertical structure is positioned right next to the first vertical structure. An insulating layer is formed on the substrate between the first and second vertical structures. A gate metal and a gate dielectric layer, are formed on the first and second vertical structures. A portion of the gate metal, gate dielectric layer, and insulating layer is removed. A portion of the substrate is removed. The portion of the substrate is removed after the gate metal is formed on the first and second vertical structure.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: October 13, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung Yub Jeon, Soo Yeon Jeong, Jae Kwang Choi
  • Publication number: 20190333825
    Abstract: A method for manufacturing a semiconductor device is provided. A first vertical structure and a second vertical structure are formed on a substrate. The second vertical structure is positioned right next to the first vertical structure. The second vertical structure is positioned right next to the first vertical structure. An insulating layer is formed on the substrate between the first and second vertical structures. A gate metal and a gate dielectric layer, are formed on the first and second vertical structures. A portion of the gate metal, gate dielectric layer, and insulating layer is removed. A portion of the substrate is removed. The portion of the substrate is removed after the gate metal is formed on the first and second vertical structure.
    Type: Application
    Filed: July 10, 2019
    Publication date: October 31, 2019
    Inventors: Kyung Yub Jeon, Soo Yeon Jeong, Jae Kwang Choi
  • Patent number: 10435587
    Abstract: A polishing composition includes abrasive particles, a pyrrolidone containing a hydrophilic group, a dispersing agent, a first dishing inhibitor including polyacrylic acid, and a second dishing inhibitor including a non-ionic polymer.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: October 8, 2019
    Assignees: Samsung Electronics Co., Ltd., K.C. Tech Co., Ltd.
    Inventors: Seung-Ho Park, Ki-Hwa Jung, Sang-Kyun Kim, Jun-Ha Hwang, Chang-Gil Kwon, Seung-Yeop Baek, Jae-Woo Lee, Ji-Sung Lee, Jae-Kwang Choi, Jin-Myung Hwang
  • Patent number: 10373878
    Abstract: A method for manufacturing a semiconductor device is provided. A first vertical structure and a second vertical structure are formed on a substrate. The second vertical structure is positioned right next to the first vertical structure. The second vertical structure is positioned right next to the first vertical structure. An insulating layer is formed on the substrate between the first and second vertical structures. A gate metal and a gate dielectric layer are formed on the first and second vertical structures. A portion of the gate metal, gate dielectric layer, and insulating layer is removed. A portion of the substrate is removed. The portion of the substrate is removed after the gate metal is formed on the first and second vertical structure.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: August 6, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung Yub Jeon, Soo Yeon Jeong, Jae Kwang Choi
  • Publication number: 20180315662
    Abstract: A method for manufacturing a semiconductor device is provided. A first vertical structure and a second vertical structure are formed on a substrate. The second vertical structure is positioned right next to the first vertical structure. The second vertical structure is positioned right next to the first vertical structure. An insulating layer is formed on the substrate between the first and second vertical structures. A gate metal and a gate dielectric layer are formed on the first and second vertical structures. A portion of the gate metal, gate dielectric layer, and insulating layer is removed. A portion of the substrate is removed. The portion of the substrate is removed after the gate metal is formed on the first and second vertical structure.
    Type: Application
    Filed: December 26, 2017
    Publication date: November 1, 2018
    Inventors: KYUNG YUB JEON, Soo Yeon Jeong, Jae Kwang Choi
  • Patent number: 9627542
    Abstract: Semiconductor devices may include a semiconductor substrate with a first semiconductor fin aligned end-to-end with a second semiconductor with a recess between facing ends of the first and second semiconductor fins. A first insulator pattern is formed adjacent sidewalls of the first and second semiconductor fins and a second insulator pattern is formed within the first recess. The second insulator pattern may have a top surface higher than a top surface of the first insulator pattern, such as to the height of the top surface of the fins (or higher or lower). First and second gates extend along sidewalls and a top surface of the first semiconductor fin. A dummy gate electrode may be formed on the top surface of the second insulator. Methods for manufacture of the same and modifications are also disclosed.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Ho Kwon, Cheol Kim, Ho-Young Kim, Se-Jung Park, Myeong-Cheol Kim, Bo-Kyeong Kang, Bo-Un Yoon, Jae-Kwang Choi, Si-Young Choi, Suk-Hoon Jeong, Geum-Jung Seong, Hee-Don Jeong, Yong-Joon Choi, Ji-Eun Han
  • Publication number: 20170029664
    Abstract: A polishing composition includes abrasive particles, a pyrrolidone containing a hydrophilic group, a dispersing agent, a first dishing inhibitor including polyacrylic acid, and a second dishing inhibitor including a non-ionic polymer.
    Type: Application
    Filed: July 20, 2016
    Publication date: February 2, 2017
    Applicant: K.C. Tech Co., Ltd.
    Inventors: Seung-Ho PARK, Ki-Hwa JUNG, Sang-Kyun KIM, Jun-Ha HWANG, Chang-Gil KWON, Seung-Yeop BAEK, Jae-Woo LEE, Ji-Sung LEE, Jae-Kwang CHOI, Jin-Myung HWANG
  • Publication number: 20160247925
    Abstract: Semiconductor devices may include a semiconductor substrate with a first semiconductor fin aligned end-to-end with a second semiconductor with a recess between facing ends of the first and second semiconductor fins. A first insulator pattern is formed adjacent sidewalls of the first and second semiconductor fins and a second insulator pattern is formed within the first recess. The second insulator pattern may have a top surface higher than a top surface of the first insulator pattern, such as to the height of the top surface of the fins (or higher or lower). First and second gates extend along sidewalls and a top surface of the first semiconductor fin. A dummy gate electrode may be formed on the top surface of the second insulator. Methods for manufacture of the same and modifications are also disclosed.
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Inventors: Byoung-Ho KWON, Cheol KIM, Ho-Young KIM, Se-Jung PARK, Myeong-Cheol KIM, Bo-Kyeong KANG, Bo-Un YOON, Jae-Kwang CHOI, Si-Young CHOI, Suk-Hoon JEONG, Geum-Jung SEONG, Hee-Don JEONG, Yong-Joon CHOI, Ji-Eun HAN
  • Patent number: 9421668
    Abstract: Provided is a chemical mechanical polishing (CMP) apparatus that includes a swing unit installed apart from a platen, on which a CMP pad to be conditioned is placed, at a predetermined interval, a connector installed on an upper end of the swing unit at one end thereof in a perpendicular direction to the swing unit and pivoting around the swing unit above the CMP pad, a rotator rotatably installed on the other end of the connector, a CMP pad conditioner coupled to the rotator and conditioning the CMP pad when rotated, and a vibration meter installed on the connector and detecting vibrations to measure a vibration acceleration of the CMP pad conditioner, thereby predicting a wear rate of the CMP pad based on the vibration acceleration and a state in which the CMP pad conditioner is installed or being used.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: August 23, 2016
    Assignees: EHWA DIAMOND INDUSTRIAL CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seh Kwang Lee, Youn Chul Kim, Joo Han Lee, Jae Kwang Choi, Jae Phil Boo
  • Patent number: 9314901
    Abstract: This invention relates to a conditioner for a CMP (Chemical Mechanical Polishing) pad, which is used in a CMP process which is part of the fabrication of a semiconductor device, and more particularly, to a CMP pad conditioner in which the structure of the cutting tips is such that the change in the wear of the polishing pad is not great even when different kinds of slurry are used and when there are changes in pressure of the conditioner, and to a method of manufacturing the same.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: April 19, 2016
    Assignee: EHWA DIAMOND INDUSTRIAL CO., LTD.
    Inventors: Seh Kwang Lee, Youn Chul Kim, Joo Han Lee, Jae Kwang Choi, Jae Phil Boo
  • Publication number: 20160064380
    Abstract: Semiconductor devices may include a semiconductor substrate with a first semiconductor fin aligned end-to-end with a second semiconductor with a recess between facing ends of the first and second semiconductor fins. A first insulator pattern is formed adjacent sidewalls of the first and second semiconductor fins and a second insulator pattern is formed within the first recess. The second insulator pattern may have a top surface higher than a top surface of the first insulator pattern, such as to the height of the top surface of the fins (or higher or lower). First and second gates extend along sidewalls and a top surface of the first semiconductor fin. A dummy gate electrode may be formed on the top surface of the second insulator. Methods for manufacture of the same and modifications are also disclosed.
    Type: Application
    Filed: November 5, 2015
    Publication date: March 3, 2016
    Inventors: Byoung-Ho KWON, Cheol KIM, Ho-Young KIM, Se-Jung PARK, Myeong-Cheol KIM, Bo-Kyeong KANG, Bo-Un YOON, Jae-Kwang CHOI, Si-Young CHOI, Suk-Hoon JEONG, Geum-Jung SEONG, Hee-Don JEONG, Yong-Joon CHOI, Ji-Eun HAN
  • Patent number: 9190407
    Abstract: Semiconductor devices may include a semiconductor substrate with a first semiconductor fin aligned end-to-end with a second semiconductor with a recess between facing ends of the first and second semiconductor fins. A first insulator pattern is formed adjacent sidewalls of the first and second semiconductor fins and a second insulator pattern is formed within the first recess. The second insulator pattern may have a top surface higher than a top surface of the first insulator pattern, such as to the height of the top surface of the fins (or higher or lower). First and second gates extend along sidewalls and a top surface of the first semiconductor fin. A dummy gate electrode may be formed on the top surface of the second insulator. Methods for manufacture of the same and modifications are also disclosed.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: November 17, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Ho Kwon, Cheol Kim, Ho-Young Kim, Se-Jung Park, Myeong-Cheol Kim, Bo-Kyeong Kang, Bo-Un Yoon, Jae-Kwang Choi, Si-Young Choi, Suk-Hoon Jeong, Geum-Jung Seong, Hee-Don Jeong, Yong-Joon Choi, Ji-Eun Han
  • Publication number: 20150140900
    Abstract: Provided is a chemical mechanical polishing (CMP) apparatus that includes a swing unit installed apart from a platen, on which a CMP pad to be conditioned is placed, at a predetermined interval, a connector installed on an upper end of the swing unit at one end thereof in a perpendicular direction to the swing unit and pivoting around the swing unit above the CMP pad, a rotator rotatably installed on the other end of the connector, a CMP pad conditioner coupled to the rotator and conditioning the CMP pad when rotated, and a vibration meter installed on the connector and detecting vibrations to measure a vibration acceleration of the CMP pad conditioner, thereby predicting a wear rate of the CMP pad based on the vibration acceleration and a state in which the CMP pad conditioner is installed or being used.
    Type: Application
    Filed: June 7, 2012
    Publication date: May 21, 2015
    Applicants: SAMSUNG ELECTRONICS CO., LTD., EHWA DIAMOND INDUSTRIAL CO., LTD.
    Inventors: Seh Kwang Lee, Youn Chul Kim, Joo Han Lee, Jae Kwang Choi, Jae Phil Boo
  • Publication number: 20150097251
    Abstract: Semiconductor devices may include a semiconductor substrate with a first semiconductor fin aligned end-to-end with a second semiconductor with a recess between facing ends of the first and second semiconductor fins. A first insulator pattern is formed adjacent sidewalls of the first and second semiconductor fins and a second insulator pattern is formed within the first recess. The second insulator pattern may have a top surface higher than a top surface of the first insulator pattern, such as to the height of the top surface of the fins (or higher or lower). First and second gates extend along sidewalls and a top surface of the first semiconductor fin. A dummy gate electrode may be formed on the top surface of the second insulator. Methods for manufacture of the same and modifications are also disclosed.
    Type: Application
    Filed: December 12, 2014
    Publication date: April 9, 2015
    Inventors: Byoung-Ho KWON, Cheol KIM, Ho-Young KIM, Se-Jung PARK, Myeong-Cheol KIM, Bo-Kyeong KANG, Bo-Un YOON, Jae-Kwang CHOI, Si-Young CHOI, Suk-Hoon JEONG, Geum-Jung SEONG, Hee-Don JEONG, Yong-Joon CHOI, Ji-Eun HAN
  • Publication number: 20150056795
    Abstract: A method of manufacturing a semiconductor devices includes providing a semiconductor substrate that includes a channel region. The method includes forming a gate electrode material film including a stepped portion on the channel region. A sacrificial material film that has an etch selectivity that is the same as an etch selectivity of the gate electrode material film is formed. The sacrificial material film is planarized until a top surface of the gate electrode material film is exposed. The stepped portion is reduced by removing an exposed portion of the gate electrode material film.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 26, 2015
    Inventors: Bo-kyeong Kang, Bo-un Yoon, Il-young Yoon, Jae-kwang Choi, Ho-young Kim, Se-jung Park, Jae-seok Kim
  • Patent number: 8916460
    Abstract: Semiconductor devices may include a semiconductor substrate with a first semiconductor fin aligned end-to-end with a second semiconductor with a recess between facing ends of the first and second semiconductor fins. A first insulator pattern is formed adjacent sidewalls of the first and second semiconductor fins and a second insulator pattern is formed within the first recess. The second insulator pattern may have a top surface higher than a top surface of the first insulator pattern, such as to the height of the top surface of the fins (or higher or lower). First and second gates extend along sidewalls and a top surface of the first semiconductor fin. A dummy gate electrode may be formed on the top surface of the second insulator. Methods for manufacture of the same and modifications are also disclosed.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byoung-Ho Kwon, Cheol Kim, Ho-Young Kim, Se-Jung Park, Myeong-Cheol Kim, Bo-Kyeong Kang, Bo-Un Yoon, Jae-Kwang Choi, Si-Young Choi, Suk-Hoon Jeong, Geum-Jung Seong, Hee-Don Jeong, Yong-Joon Choi, Ji-Eun Han
  • Publication number: 20140094101
    Abstract: This invention relates to a conditioner for a CMP (Chemical Mechanical Polishing) pad, which is used in a CMP process which is part of the fabrication of a semiconductor device, and more particularly, to a CMP pad conditioner in which the structure of the cutting tips is such that the change in the wear of the polishing pad is not great even when different kinds of slurry are used and when there are changes in pressure of the conditioner, and to a method of manufacturing the same.
    Type: Application
    Filed: May 15, 2012
    Publication date: April 3, 2014
    Applicants: SAMSUNG ELECTRONICS CO., LTD., EHWA DIAMOND INDUSTRIAL CO., LTD.
    Inventors: Seh Kwang Lee, Youn Chul Kim, Joo Han Lee, Jae Kwang Choi, Jae Phil Boo
  • Patent number: 8597081
    Abstract: A pad conditioning disk, a pre-conditioning unit, and a CMP apparatus having the same are provided. The pad conditioning disk includes a base in which mountain-type tips and valley-type grooves are repeatedly connected to each other, and a cutting layer formed on the base layer. The cutting layer including conditioning particles deposited on surfaces of the tips and grooves. A surfaces roughness of conditioning particles deposited on the surfaces of the tips is less than a surface roughness of conditioning particles deposited on the surfaces of the grooves.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Kwang Choi, Hong-Jin Kim, Keon-Sik Seo, Sol Han, Kun-Tack Lee, Byoung-Ho Kwon