Patents by Inventor Maenghyo Cho

Maenghyo Cho 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: 11662665
    Abstract: A lithography method using a multiscale simulation includes estimating a shape of a virtual resist pattern for a selected resist based on a multiscale simulation; forming a test resist pattern by performing an exposure process on a layer formed of the selected resist; determining whether an error range between the test resist pattern and the virtual resist pattern is in an allowable range; and forming a resist pattern on a patterning object using the selected resist when the error range is in the allowable range. The multiscale simulation may use molecular scale simulation, quantum scale simulation, and a continuum scale simulation, and may model a unit lattice cell of the resist by mixing polymer chains, a photo-acid generator (PAG), and a quencher.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: May 30, 2023
    Assignees: Samsung Electronics Co., Ltd., Seoul National University R&DB Foundation
    Inventors: Byunghoon Lee, Maenghyo Cho, Changyoung Jeong, Muyoung Kim, Junghwan Moon, Sungwoo Park, Hyungwoo Lee
  • Publication number: 20230047588
    Abstract: There are provided a lithography method capable of selecting best resist and a semiconductor device manufacturing method and exposure equipment based on the lithography method. The lithography method includes estimating a shape of a virtual resist pattern based on a multi-scale simulation for resist, forming a test resist pattern by performing exposure on selected resist based on the simulation result, comparing the test resist pattern with the virtual resist pattern, and forming a resist pattern on an object to be patterned by using the resist when an error between the test resist pattern and the virtual resist pattern is in an allowable range.
    Type: Application
    Filed: October 21, 2022
    Publication date: February 16, 2023
    Applicant: Seoul National University R&DB Foundation
    Inventors: Byunghoon Lee, Changyoung Jeong, Byunggook Kim, Maenghyo Cho, Muyoung Kim, Junghwan Moon, Sungwoo Park, Hyungwoo Lee, Joonmyung Choi
  • Patent number: 11493850
    Abstract: There are provided a lithography method capable of selecting best resist and a semiconductor device manufacturing method and exposure equipment based on the lithography method. The lithography method includes estimating a shape of a virtual resist pattern based on a multi-scale simulation for resist, forming a test resist pattern by performing exposure on selected resist based on the simulation result, comparing the test resist pattern with the virtual resist pattern, and forming a resist pattern on an object to be patterned by using the resist when an error between the test resist pattern and the virtual resist pattern is in an allowable range.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 8, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byunghoon Lee, Changyoung Jeong, Byunggook Kim, Maenghyo Cho, Muyoung Kim, Junghwan Moon, Sungwoo Park, Hyungwoo Lee, Joonmyung Choi
  • Publication number: 20220350256
    Abstract: A lithography method using a multiscale simulation includes estimating a shape of a virtual resist pattern for a selected resist based on a multiscale simulation; forming a test resist pattern by performing an exposure process on a layer formed of the selected resist; determining whether an error range between the test resist pattern and the virtual resist pattern is in an allowable range; and forming a resist pattern on a patterning object using the selected resist when the error range is in the allowable range. The multiscale simulation may use molecular scale simulation, quantum scale simulation, and a continuum scale simulation, and may model a unit lattice cell of the resist by mixing polymer chains, a photo-acid generator (PAG), and a quencher.
    Type: Application
    Filed: February 16, 2022
    Publication date: November 3, 2022
    Applicants: Samsung Electronics Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Byunghoon LEE, Maenghyo CHO, Changyoung JEONG, Muyoung KIM, Junghwan MOON, Sungwoo PARK, Hyungwoo LEE
  • Publication number: 20210026249
    Abstract: There are provided a lithography method capable of selecting best resist and a semiconductor device manufacturing method and exposure equipment based on the lithography method. The lithography method includes estimating a shape of a virtual resist pattern based on a multi-scale simulation for resist, forming a test resist pattern by performing exposure on selected resist based on the simulation result, comparing the test resist pattern with the virtual resist pattern, and forming a resist pattern on an object to be patterned by using the resist when an error between the test resist pattern and the virtual resist pattern is in an allowable range.
    Type: Application
    Filed: October 4, 2019
    Publication date: January 28, 2021
    Applicant: Seoul National University R&DB Foundation
    Inventors: Byunghoon Lee, Changyoung Jeong, Byunggook Kim, Maenghyo Cho, Muyoung Kim, Junghwan Moon, Sungwoo Park, Hyungwoo Lee, Joonmyung Choi
  • Patent number: 10804527
    Abstract: Disclosed are a positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the same. More specifically, the positive active material for a rechargeable lithium battery is a compound having an orthorhombic layered structure represented by the following Chemical Formula 1 or a compound represented by the following Chemical Formula 2, a method for producing the same, and a rechargeable lithium battery including the same. Li1+xMyO2+z??[Chemical Formula 1] {m(Li1+xMyO2+z)}.{1-m(LiMO2)}??[Chemical Formula 2] Wherein, in the above Chemical Formula 1 or Chemical Formula 2, M is one or more elements selected from the group consisting of Mn, Co, Ni, Al, Ti, Mo, V, Cr, Fe, Cu, Zr, Nb, and Ga, 0.7?x?1.2, 0.8?y?1.2, ?0.2?z?0.2, and 0<m?1.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: October 13, 2020
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jin-Myoung Lim, Duho Kim, Maenghyo Cho, Kyeong-jae Cho
  • Patent number: 10479017
    Abstract: Provided are a sequential joint behavior sheet using photo deformation and a method of controlling folding and unfolding thereof. The sequential joint behavior sheet includes at least three rigid parts, a first joint part joining two of the rigid parts that are adjacent to each other, and a second joint part joining two of the rigid parts that are adjacent to each other and spaced apart from the first joint part.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: November 19, 2019
    Assignee: Seoul National University R&DB Foundation
    Inventors: Maenghyo Cho, Yonghee Lee, Taesoon Hwang, Jong Gu Lee, Junghyun Ryu, Hyeok Lee
  • Publication number: 20180254473
    Abstract: Disclosed are a positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the same. More specifically, the positive active material for a rechargeable lithium battery is a compound having an orthorhombic layered structure represented by the following Chemical Formula 1 or a compound represented by the following Chemical Formula 2, a method for producing the same, and a rechargeable lithium battery including the same. Li1+xMyO2+z??[Chemical Formula 1] {m(Li1+xMyO2+z)}.{1-m(LiMO2)}??[Chemical Formula 2] Wherein, in the above Chemical Formula 1 or Chemical Formula 2, M is one or more elements selected from the group consisting of Mn, Co, Ni, Al, Ti, Mo, V, Cr, Fe, Cu, Zr, Nb, and Ga, 0.7?x?1.2, 0.8?y?1.2, ?0.2?z?0.2, and 0<m?1.
    Type: Application
    Filed: December 22, 2015
    Publication date: September 6, 2018
    Inventors: Jin-Myoung LIM, Duho KIM, Maenghyo CHO, Kyeong-jae CHO
  • Patent number: 9699894
    Abstract: Disclosed herein is a deformation sensing flexible substrate using a pattern formed of a conductive material. The deformation sensing flexible substrate, using the pattern formed of the conductive material, includes a flexible substrate; and conductive patterns in which conductors including a conductive material are arranged and formed to be contactable and non-contact to each other based on deformation of the flexible substrate.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: July 4, 2017
    Assignee: Seoul National University R&DB Foundation
    Inventors: Maenghyo Cho, Kyu Jin Cho, Junghyun Ryu, Je Sung Koh, Jong Gu Lee
  • Publication number: 20170048965
    Abstract: Disclosed herein is a deformation sensing flexible substrate using a pattern formed of a conductive material. The deformation sensing flexible substrate, using the pattern formed of the conductive material, includes a flexible substrate; and conductive patterns in which conductors including a conductive material are arranged and formed to be contactable and non-contact to each other based on deformation of the flexible substrate.
    Type: Application
    Filed: March 11, 2015
    Publication date: February 16, 2017
    Applicant: Seoul National University R&DB Foundation
    Inventors: Maenghyo CHO, Kyu Jin CHO, Junghyun RYU, Je Sung KOH, Jong Gu LEE
  • Publication number: 20160311151
    Abstract: Provided are a sequential joint behavior sheet using photo deformation and a method of controlling folding and unfolding thereof. The sequential joint behavior sheet includes at least three rigid parts, a first joint part joining two of the rigid parts that are adjacent to each other, and a second joint part joining two of the rigid parts that are adjacent to each other and spaced apart from the first joint part.
    Type: Application
    Filed: July 22, 2015
    Publication date: October 27, 2016
    Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Maenghyo Cho, Yonghee Lee, Taesoon Hwang, Jong Gu Lee, Junghyun Ryu, Hyeok Lee