Patents by Inventor Hoseop Choi

Hoseop 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: 11990348
    Abstract: A wafer processing method includes supplying a first process gas into a wafer processing apparatus, lowering a temperature of the wafer, generating plasma using the first process gas, supplying a second process gas and mixing the second process gas with the plasma, performing a plasma process on the wafer using the plasma and the second process gas, and performing an annealing process on the wafer on which the plasma process has been performed. The lowering of the temperature of the wafer includes increasing an internal pressure of the wafer processing apparatus.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: May 21, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chanyeong Jeong, Hoseop Choi, Sunggil Kang, Dongkyu Shin, Sangjin An
  • Publication number: 20220379432
    Abstract: A conditioning disk replacement apparatus includes; a detacher configured to separate a conditioning disk from to a holder, a transfer part configured to transfer the conditioning disk, and a container configured to store the conditioning disk. The detacher includes a detachment body and a rotary part coupled to the detachment body, the rotary part includes a key protruding outward from the rotary part in a first horizontal direction, and the rotary part is configured to rotate about a central axis extending in the first horizontal direction.
    Type: Application
    Filed: May 16, 2022
    Publication date: December 1, 2022
    Inventors: HOSEOP CHOI, MINSEOP PARK, JUBONG LEE, SUNG YONG PARK, KIJU SOHN, JAEYOUNG EOM
  • Publication number: 20220068659
    Abstract: A wafer processing method includes supplying a first process gas into a wafer processing apparatus, lowering a temperature of the wafer, generating plasma using the first process gas, supplying a second process gas and mixing the second process gas with the plasma, performing a plasma process on the wafer using the plasma and the second process gas, and performing an annealing process on the wafer on which the plasma process has been performed. The lowering of the temperature of the wafer includes increasing an internal pressure of the wafer processing apparatus.
    Type: Application
    Filed: February 24, 2021
    Publication date: March 3, 2022
    Inventors: CHANYEONG JEONG, HOSEOP CHOI, SUNGGIL KANG, DONGKYU SHIN, SANGJIN AN
  • Patent number: 10998185
    Abstract: Disclosed are a method for cleaning a substrate, an apparatus for cleaning a substrate, and a method for fabricating a semiconductor device using the same. The method may include cleaning a substrate in a wet process, providing a supercritical fluid onto the substrate to remove moisture from the substrate, and cleaning the substrate in a dry process to remove defect particles from a substrate, which are produced by the supercritical fluid.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 4, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Beomjin Yoo, Minhyoung Kim, Wonhyuk Jang, Hoseop Choi, Jeongmin Bang, KyuHee Han
  • Publication number: 20190295843
    Abstract: Disclosed are a method for cleaning a substrate, an apparatus for cleaning a substrate, and a method for fabricating a semiconductor device using the same. The method may include cleaning a substrate in a wet process, providing a supercritical fluid onto the substrate to remove moisture from the substrate, and cleaning the substrate in a dry process to remove defect particles from a substrate, which are produced by the supercritical fluid.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 26, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Beomjin YOO, Minhyoung KIM, Wonhyuk JANG, Hoseop CHOI, Jeongmin BANG, KyuHee HAN
  • Patent number: 9669423
    Abstract: The present invention relates to a spark discharge generator. The spark discharge system of the present invention includes a plurality of columnar electrodes and a ground plate having a plurality of outlet holes at positions corresponding to the columnar electrodes. The use of the spark discharge generator enables the production of a three-dimensionally shaped nanostructure array on a large area in a uniform and rapid manner.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 6, 2017
    Assignees: Global Frontier Center—Multiscale Energy Systems, SNU R&DB Foundation
    Inventors: Man Soo Choi, Kyungyeon Ha, Hoseop Choi, Kyuhee Han, Kinam Jung, Dongjoon Lee, Sukbyung Chae
  • Patent number: 9349976
    Abstract: The present invention relates to a process for preparing an electronic device comprising at least one layer selected from the group consisting of a upper electrode layer, a lower electrode layer, an organic layer and an inorganic layer, which comprises a step of introducing a nanoparticle layer or a nano/micro structure layer by adhering charged nanoparticles, before, after or during forming the layer.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: May 24, 2016
    Assignees: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy System
    Inventors: Changsoon Kim, Hyungchae Kim, Jongcheon Lee, Kyuhee Han, Hyangki Sung, Kinam Jung, Hoseop Choi, Kyungyeon Ha, Man Soo Choi
  • Patent number: 9321633
    Abstract: The present invention relates to a process for producing a 3-dimensional structure assembled from nanoparticles by using a mask having a pattern of perforations, which comprises the steps of: in a grounded reactor, placing a mask having a pattern of perforations corresponding to a determined pattern at a certain distance above a substrate to be patterned, and then applying voltage to the substrate to form an electrodynamic focusing lens; and introducing charged nanoparticles into the reactor, the charged particles being guided to the substrate through the pattern of perforations so as to be selectively attached to the substrate with 3-dimensional shape. According to the process of the present invention, a 3-dimensional structure of various shapes can be produced without producing noise pattern, with high accuracy and high efficiency.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: April 26, 2016
    Assignees: Global Frontier Center for Multiscale Energy Systems, SNU R&DB Foundation
    Inventors: Hoseop Choi, Man Soo Choi
  • Publication number: 20150030781
    Abstract: The present invention relates to a spark discharge generator. The spark discharge system of the present invention includes a plurality of columnar electrodes and a ground plate having a plurality of outlet holes at positions corresponding to the columnar electrodes. The use of the spark discharge generator enables the production of a three-dimensionally shaped nanostructure array on a large area in a uniform and rapid manner.
    Type: Application
    Filed: December 19, 2013
    Publication date: January 29, 2015
    Inventors: Man Soo Choi, Kyungyeon Ha, Hoseop Choi, Kyuhee Han, Kinam Jung, Dongjoon Lee, Sukbyung Chae
  • Publication number: 20140224315
    Abstract: The present invention relates to a method for manufacturing a nanoparticle structure by focused patterning of nanoparticles, and a nanoparticle structure obtained by the above method. The method of the present invention is characterized by comprising the steps of: first of all, accumulating ions generated by corona discharge on a substrate where a micro/nano pattern is formed; inducing charged nanoparticles and ions generated by spark discharge to the micro/nano pattern of the substrate; and then focused depositing on the micro/nano pattern. According to the method of the present invention, an elaborate nanoparticle structure, which has 3-dimensional shape having complicated structure, can be effectively manufactured.
    Type: Application
    Filed: January 30, 2013
    Publication date: August 14, 2014
    Applicants: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy Systems
    Inventors: Kinam Jung, Jung Suk Hahn, Petro Pikhitsa, Hoseop Choi, Kyungyeon Ha, Seung Ryul Noh, Woong Sik Kim, Man Soo Choi
  • Publication number: 20140212641
    Abstract: The present invention relates to a process for producing a 3-dimensional structure assembled from nanoparticles by using a mask having a pattern of perforations, which comprises the steps of: in a grounded reactor, placing a mask having a pattern of perforations corresponding to a determined pattern at a certain distance above a substrate to be patterned, and then applying voltage to the substrate to form an electrodynamic focusing lens; and introducing charged nanoparticles into the reactor, the charged particles being guided to the substrate through the pattern of perforations so as to be selectively attached to the substrate with 3-dimensional shape. According to the process of the present invention, a 3-dimensional structure of various shapes can be produced without producing noise pattern, with high accuracy and high efficiency.
    Type: Application
    Filed: March 4, 2013
    Publication date: July 31, 2014
    Applicants: Global Frontier Center for Multiscale Energy Systems, SNU R&DB Foundation
    Inventors: Hoseop Choi, Man Soo Choi
  • Publication number: 20140159030
    Abstract: The present invention relates to a process for preparing an electronic device comprising at least one layer selected from the group consisting of a upper electrode layer, a lower electrode layer, an organic layer and an inorganic layer, which comprises a step of introducing a nanoparticle layer or a nano/micro structure layer by adhering charged nanoparticles, before, after or during forming the layer.
    Type: Application
    Filed: March 4, 2013
    Publication date: June 12, 2014
    Inventors: Changsoon Kim, Hyungchae Kim, Jongcheon Lee, Kyuhee Han, Hyangki Sung, Kinam Jung, Hoseop Choi, Kyungyeon Ha, Man Soo Choi