Patents by Inventor Jun Hwan Ji

Jun Hwan Ji 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: 20240139436
    Abstract: A method of controlling injection of a drug includes receiving a captured medical image of an object, identifying an object of interest from the medical image, based on a position and a shape of the object of interest, determining a drug injection position, based on the position and the shape of the object of interest, determining a plurality of electrode insertion positions, the plurality of electrodes being configured to supply a current to move the drug, defining a drug movement path based on a shape of the identified object of interest, generating current sequence information to move the drug along the drug movement path, the current sequence information defining a current applied over time to each of the plurality of electrodes, and outputting the current sequence information to a current source apparatus.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 2, 2024
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Young Bin Choy, Han Bi Ji, Chang Hee Min, Jae Hoon Han, Won Seok Chang, Jun Won Park, Chang-Hwan Im, Kyeong-Gu Lee
  • Patent number: 11085126
    Abstract: A feed assembly supplies polysilicon to a growth chamber for growing a crystal ingot from a melt. An example system includes a housing having support rails for receiving one of a granular tray and a chunk tray and a feed material reservoir positioned above the support rails to selectively feed one of either the granular tray or the chunk tray. A valve mechanism and pulse vibrator are also disclosed.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 10, 2021
    Assignees: GlobalWafers Co., Ltd., Daevac International Co., Ltd.
    Inventors: Seok Min Yun, Seong Su Park, Jun Hwan Ji, Won-Jin Choi, UiSung Jung, Young Jung Lee, Tae Su Koo, Sung-Jin Kim
  • Patent number: 10707093
    Abstract: The disclosure is directed to a method to recover the gate oxide integrity yield of a silicon wafer after rapid thermal anneal in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2. Generally, rapid thermal anneals in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2 to thereby imprint an oxygen precipitate profile can degrade the GOI yield of a silicon wafer by exposing as-grown crystal defects (oxygen precipitate) and vacancies generated by the silicon nitride film. The present invention restores GOI yield by stripping the silicon nitride layer, which is followed by wafer oxidation, which is followed by stripping the silicon oxide layer.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: July 7, 2020
    Assignee: SunEdison Semiconductor Limited (UEN201334164H)
    Inventors: Young Jung Lee, Jae-Woo Ryu, Byung Chun Kim, Robert J. Falster, Soon Sung Park, Tae Hoon Kim, Jun Hwan Ji, Carissima Marie Hudson
  • Publication number: 20200080225
    Abstract: A feed assembly supplies polysilicon to a growth chamber for growing a crystal ingot from a melt. An example system includes a housing having support rails for receiving one of a granular tray and a chunk tray and a feed material reservoir positioned above the support rails to selectively feed one of either the granular tray or the chunk tray. A valve mechanism and pulse vibrator are also disclosed.
    Type: Application
    Filed: November 13, 2019
    Publication date: March 12, 2020
    Inventors: Seok Min Yun, Seong Su Park, Jun Hwan Ji, Won-Jin Choi, UiSung Jung, Young Jung Lee, Tae Su Koo, Sung-Jin Kim
  • Patent number: 10577717
    Abstract: A feed assembly supplies polysilicon to a growth chamber for growing a crystal ingot from a melt. An example system includes a housing having support rails for receiving one of a granular tray and a chunk tray and a feed material reservoir positioned above the support rails to selectively feed one of either the granular tray or the chunk tray. A valve mechanism and pulse vibrator are also disclosed.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: March 3, 2020
    Assignee: GLOBALWAFERS CO., LTD.
    Inventors: Seok Min Yun, Seong Su Park, Jun Hwan Ji, Won-Jin Choi, UiSung Jung, Young Jung Lee, Tae Su Koo, Sung-Jin Kim
  • Patent number: 10453703
    Abstract: The disclosure is directed to a method to recover the gate oxide integrity yield of a silicon wafer after rapid thermal anneal in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2. Generally, rapid thermal anneals in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2 to thereby imprint an oxygen precipitate profile can degrade the GOI yield of a silicon wafer by exposing as-grown crystal defects (oxygen precipitate) and vacancies generated by the silicon nitride film. The present invention restores GOI yield by stripping the silicon nitride layer, which is followed by wafer oxidation, which is followed by stripping the silicon oxide layer.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 22, 2019
    Assignee: SunEdison Semiconductor Limited (UEN201334164H)
    Inventors: Young Jung Lee, Jae-Woo Ryu, Byung Chun Kim, Robert J. Falster, Soon Sung Park, Tae Hoon Kim, Jun Hwan Ji, Carissima Marie Hudson
  • Publication number: 20190267251
    Abstract: The disclosure is directed to a method to recover the gate oxide integrity yield of a silicon wafer after rapid thermal anneal in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2. Generally, rapid thermal anneals in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2 to thereby imprint an oxygen precipitate profile can degrade the GOI yield of a silicon wafer by exposing as-grown crystal defects (oxygen precipitate) and vacancies generated by the silicon nitride film. The present invention restores GOI yield by stripping the silicon nitride layer, which is followed by wafer oxidation, which is followed by stripping the silicon oxide layer.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 29, 2019
    Inventors: Young Jung Lee, Jae-Woo Ryu, Byung Chun Kim, Robert J. Falster, Soon Sung Park, Tae Hoon Kim, Jun Hwan Ji, Carissima Marie Hudson
  • Publication number: 20190211469
    Abstract: A feed assembly supplies polysilicon to a growth chamber for growing a crystal ingot from a melt. An example system includes a housing having support rails for receiving one of a granular tray and a chunk tray and a feed material reservoir positioned above the support rails to selectively feed one of either the granular tray or the chunk tray. A valve mechanism and pulse vibrator are also disclosed.
    Type: Application
    Filed: March 13, 2019
    Publication date: July 11, 2019
    Inventors: Seok Min Yun, Seong Su Park, Jun Hwan Ji, Won-Jin Choi, UiSung Jung, Young Jung Lee, Tae Su Koo, Sung-Jin Kim
  • Patent number: 10273596
    Abstract: A feed assembly supplies polysilicon to a growth chamber for growing a crystal ingot from a melt. An example system includes a housing having support rails for receiving one of a granular tray and a chunk tray and a feed material reservoir positioned above the support rails to selectively feed one of either the granular tray or the chunk tray. A valve mechanism and pulse vibrator are also disclosed.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: April 30, 2019
    Assignees: GLOBALWAFERS CO., LTD., DAEVAC INTERNATIONAL CO., LTD.
    Inventors: Seok Min Yun, Seong Su Park, Jun Hwan Ji, Won-Jin Choi, UiSung Jung, Young Jung Lee, Tae Su Koo, Sung-Jin Kim
  • Publication number: 20180237948
    Abstract: A feed assembly supplies polysilicon to a growth chamber for growing a crystal ingot from a melt. An example system includes a housing having support rails for receiving one of a granular tray and a chunk tray and a feed material reservoir positioned above the support rails to selectively feed one of either the granular tray or the chunk tray. A valve mechanism and pulse vibrator are also disclosed.
    Type: Application
    Filed: August 18, 2016
    Publication date: August 23, 2018
    Applicants: SunEdison Semiconductor Limited (UEN201334164H), DAEVAC International Co., Ltd.
    Inventors: Seok Min Yun, Seong Su Park, Jun Hwan Ji, Won-Jin Choi, UiSung Jung, Young Jung Lee, Tae Su Koo, Sung-Jin Kim
  • Publication number: 20180030615
    Abstract: Methods for producing single crystal silicon ingots with a reduced oxygen content toward the seed end of the ingot are disclosed. The methods may involve controlling growth conditions during crown formation and, in some embodiments, controlling the rate of crucible rotation during crown rotation to increase the time the crucible is rotated at or below a threshold value during crown growth.
    Type: Application
    Filed: July 28, 2017
    Publication date: February 1, 2018
    Inventors: Doh Hyung Kwon, Hyung Min Lee, Jae Woo Ryu, Young Jung Lee, Jong Hak Lee, Jun Hwan Ji, Byung Chun Kim