Patents by Inventor Tetsuro Nakasugi

Tetsuro Nakasugi 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: 11953825
    Abstract: According to one embodiment, an imprint apparatus that presses a fine pattern of an original plate against a photo-curable resin dropped onto a substrate, and transfers the fine pattern to the photo-curable resin by applying light, includes a dropping unit that drops the photo-curable resin onto a shot region obtained by dividing the substrate into a plurality of sections, an original plate supporting unit that stamps the original plate on the photo-curable resin on the substrate, the original plate being supported the fine pattern towards the substrate side, and a substrate supporting unit that supports the substrate and moves the substrate such that a position of a predetermined shot region of the substrate is a dropping position of the dropping unit or a stamping position of the original plate, in which the dropping unit is controlled such that the photo-curable resin is sequentially dropped onto the plurality of shot regions of the substrate, and the original plate supporting unit is controlled such that
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: April 9, 2024
    Assignee: Kioxia Corporation
    Inventors: Masayuki Hatano, Kei Kobayashi, Tetsuro Nakasugi
  • Patent number: 11837469
    Abstract: According to one embodiment, an imprint apparatus includes a first light source positioned to irradiate a substrate with light, a second light source positioned to irradiate the substrate with light, an illuminance changing portion selectively configured to change the illuminance distribution of light from the first light source on an irradiation surface on the substrate, and a controller configured to control the first light source, the second light source and the illuminance changing portion to irradiate the substrate with light from the first light source, and to subsequently irradiate the substrate with light from the second light source directly through the template.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: December 5, 2023
    Assignee: Kioxia Corporation
    Inventors: Kazuya Fukuhara, Tetsuro Nakasugi, Masayuki Hatano
  • Publication number: 20230221635
    Abstract: According to one embodiment, an imprint apparatus that presses a fine pattern of an original plate against a photo-curable resin dropped onto a substrate, and transfers the fine pattern to the photo-curable resin by applying light, includes a dropping unit that drops the photo-curable resin onto a shot region obtained by dividing the substrate into a plurality of sections, an original plate supporting unit that stamps the original plate on the photo-curable resin on the substrate, the original plate being supported the fine pattern towards the substrate side, and a substrate supporting unit that supports the substrate and moves the substrate such that a position of a predetermined shot region of the substrate is a dropping position of the dropping unit or a stamping position of the original plate, in which the dropping unit is controlled such that the photo-curable resin is sequentially dropped onto the plurality of shot regions of the substrate, and the original plate supporting unit is controlled such that
    Type: Application
    Filed: January 16, 2023
    Publication date: July 13, 2023
    Applicant: Kioxia Corporation
    Inventors: Masayuki HATANO, Kei KOBAYASHI, Tetsuro NAKASUGI
  • Publication number: 20220252975
    Abstract: An imprint apparatus includes a moveable substrate support configured to hold a substrate having a transfer target material thereon, a template holder configured to hold a template in which a pattern, which is to be transferred to the transfer target material, is formed, a light source configured to emit light at different selectable intensities toward the transfer target material, and a controller. The controller includes a processing unit and a storage unit, and is configured to retrieve exposure conditions for the transfer target material and control the intensity, and timing of initiation, of the light output by the light source, based on the retrieved exposure conditions, such that the transfer target material is subjected to main curing after undergoing temporary curing.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 11, 2022
    Inventors: Kazuya FUKUHARA, Masaki MITSUYASU, Masato SUZUKI, Takuya KONO, Tetsuro NAKASUGI
  • Publication number: 20210225638
    Abstract: According to one embodiment, an imprint apparatus includes a first light source positioned to irradiate a substrate with light, a second light source positioned to irradiate the substrate with light, an illuminance changing portion selectively configured to change the illuminance distribution of light from the first light source on an irradiation surface on the substrate, and a controller configured to control the first light source, the second light source and the illuminance changing portion to irradiate the substrate with light from the first light source, and to subsequently irradiate the substrate with light from the second light source directly through the template.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Inventors: Kazuya FUKUHARA, Tetsuro NAKASUGI, Masayuki HATANO
  • Patent number: 11004683
    Abstract: According to one embodiment, an imprint apparatus includes a first light source positioned to irradiate a substrate with light, a second light source positioned to irradiate the substrate with light, an illuminance changing portion selectively configured to change the illuminance distribution of light from the first light source on an irradiation surface on the substrate, and a controller configured to control the first light source, the second light source and the illuminance changing portion to irradiate the substrate with light from the first light source, and to subsequently irradiate the substrate with light from the second light source directly through the template.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 11, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Kazuya Fukuhara, Tetsuro Nakasugi, Masayuki Hatano
  • Publication number: 20200402843
    Abstract: A pattern forming method includes forming a first resist pattern on a substrate using imprint lithography. And forming a resist onto the substrate at least at positions corresponding to a second resist pattern and then curing the resist to form the second resist pattern on the substrate.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Anupam MITRA, Tetsuro NAKASUGI, Kazuhiro TAKAHATA
  • Patent number: 10796948
    Abstract: A pattern forming method includes forming a first resist pattern on a substrate using imprint lithography. And forming a resist onto the substrate at least at positions corresponding to a second resist pattern and then curing the resist to form the second resist pattern on the substrate.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: October 6, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Anupam Mitra, Tetsuro Nakasugi, Kazuhiro Takahata
  • Publication number: 20200073233
    Abstract: According to one embodiment, an imprint apparatus that presses a fine pattern of an original plate against a photo-curable resin dropped onto a substrate, and transfers the fine pattern to the photo-curable resin by applying light, includes a dropping unit that drops the photo-curable resin onto a shot region obtained by dividing the substrate into a plurality of sections, an original plate supporting unit that stamps the original plate on the photo-curable resin on the substrate, the original plate being supported the fine pattern towards the substrate side, and a substrate supporting unit that supports the substrate and moves the substrate such that a position of a predetermined shot region of the substrate is a dropping position of the dropping unit or a stamping position of the original plate, in which the dropping unit is controlled such that the photo-curable resin is sequentially dropped onto the plurality of shot regions of the substrate, and the original plate supporting unit is controlled such that
    Type: Application
    Filed: March 11, 2019
    Publication date: March 5, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Masayuki HATANO, Kei KOBAYASHI, Tetsuro NAKASUGI
  • Publication number: 20200006124
    Abstract: A pattern forming method includes forming a first resist pattern on a substrate using imprint lithography. And forming a resist onto the substrate at least at positions corresponding to a second resist pattern and then curing the resist to form the second resist pattern on the substrate.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Inventors: Anupam MITRA, Tetsuro NAKASUGI, Kazuhiro TAKAHATA
  • Publication number: 20190221421
    Abstract: According to one embodiment, an imprint apparatus includes a first light source positioned to irradiate a substrate with light, a second light source positioned to irradiate the substrate with light, an illuminance changing portion selectively configured to change the illuminance distribution of light from the first light source on an irradiation surface on the substrate, and a controller configured to control the first light source, the second light source and the illuminance changing portion to irradiate the substrate with light from the first light source, and to subsequently irradiate the substrate with light from the second light source directly through the template.
    Type: Application
    Filed: August 21, 2018
    Publication date: July 18, 2019
    Inventors: Kazuya FUKUHARA, Tetsuro NAKASUGI, Masayuki HATANO
  • Publication number: 20190079391
    Abstract: An imprint apparatus includes a moveable substrate support configured to hold a substrate having a transfer target material thereon, a template holder configured to hold a template in which a pattern, which is to be transferred to the transfer target material, is formed, a light source configured to emit light at different selectable intensities toward the transfer target material, and a controller. The controller includes a processing unit and a storage unit, and is configured to retrieve exposure conditions for the transfer target material and control the intensity, and timing of initiation, of the light output by the light source, based on the retrieved exposure conditions, such that the transfer target material is subjected to main curing after undergoing temporary curing.
    Type: Application
    Filed: February 26, 2018
    Publication date: March 14, 2019
    Inventors: Kazuya FUKUHARA, Masaki MITSUYASU, Masato SUZUKI, Takuya KONO, Tetsuro NAKASUGI
  • Publication number: 20180151418
    Abstract: A pattern forming method includes forming a first resist pattern on a substrate using imprint lithography. And forming a resist onto the substrate at least at positions corresponding to a second resist pattern and then curing the resist to form the a second resist pattern on the substrate.
    Type: Application
    Filed: September 4, 2017
    Publication date: May 31, 2018
    Inventors: Anupam MITRA, Tetsuro NAKASUGI, Kazuhiro TAKAHATA
  • Publication number: 20180119288
    Abstract: According to one embodiment, a template forming method is provided. In the template forming method, a template pattern is formed on a first surface of a substrate. A high liquid repellent property portion is formed in a region different from the template pattern on a side of the first surface of the substrate. The high liquid repellent property portion has a higher contacting angle with respect to a resist than a portion without the high liquid repellent property portion formed therein.
    Type: Application
    Filed: December 21, 2017
    Publication date: May 3, 2018
    Applicant: Toshiba Memory Corporation
    Inventors: Masatoshi Tsuji, Masayuki Hatano, Yohko Komatsu, Tetsuro Nakasugi
  • Patent number: 9885118
    Abstract: According to one embodiment, a template forming method is provided. In the template forming method, a template pattern is formed on a first surface of a substrate. A high liquid repellent property portion is formed in a region different from the template pattern on a side of the first surface of the substrate. The high liquid repellent property portion has a higher contacting angle with respect to a resist than a portion without the high liquid repellent property portion formed therein.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: February 6, 2018
    Assignee: Toshiba Memory Corporation
    Inventors: Masatoshi Tsuji, Masayuki Hatano, Yohko Komatsu, Tetsuro Nakasugi
  • Publication number: 20160247673
    Abstract: According to one embodiment, a template forming method is provided. In the template forming method, a template pattern is formed on a first surface of a substrate. A high liquid repellent property portion is formed in a region different from the template pattern on a side of the first surface of the substrate. The high liquid repellent property portion has a higher contacting angle with respect to a resist than a portion without the high liquid repellent property portion formed therein.
    Type: Application
    Filed: September 3, 2015
    Publication date: August 25, 2016
    Inventors: Masatoshi TSUJI, Masayuki HATANO, Yohko KOMATSU, Tetsuro NAKASUGI
  • Patent number: 9381540
    Abstract: A pattern forming method includes determining an amount of curable resin to be formed on a substrate, the curable resin having volatility, the amount of the curable resin being determined by a calculation considering volatile loss of the curable resin, the calculation being performed for each of a plurality of regions of the substrate, forming the curable resin having the determined amount on the substrate, the forming the curable resin being performed for each of the plurality of regions of the substrate, contacting the curable resin formed on the substrate with a template, the template including a pattern to be filled with the curable resin by the contacting, and curing the curable resin under a condition where the curable resin is in contact with the template.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: July 5, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takeshi Koshiba, Ikuo Yoneda, Tetsuro Nakasugi
  • Patent number: 9360752
    Abstract: According to one embodiment, a pattern formation method is disclosed. The method is configured to transfer a shape of a pattern to a plurality of shot regions of an object using a mold including a first pattern region and a second pattern region aligned with the first pattern region. The method can include transferring the shape of the pattern to each of the plurality of shot regions sequentially in a first direction from the first pattern region toward the second pattern region when the shape of the pattern is transferred using the first pattern region. The method can include transferring the shape of the pattern to each of the plurality of shot regions sequentially in a second direction from the second pattern region toward the first pattern region when the shape of the pattern is transferred using the second pattern region.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: June 7, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatoshi Tsuji, Tetsuro Nakasugi, Masayuki Hatano
  • Patent number: 9188879
    Abstract: According to one embodiment, a substrate holding apparatus includes a main unit and a plurality of first support units. The main unit has a major surface. The main unit has a plate configuration. The first support units are disposed on the major surface. Each of the first support units includes a suction-holding unit capable of holding a substrate by suction. The suction-holding unit is movable along a first direction perpendicular to the major surface and a second direction parallel to the major surface.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: November 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kentaro Kasa, Manabu Takakuwa, Ryoichi Inanami, Kazuto Matsuki, Tetsuro Nakasugi, Hiroshi Koizumi, Minoru Inomoto
  • Publication number: 20150224536
    Abstract: A pattern forming method includes determining an amount of curable resin to be formed on a substrate, the curable resin having volatility, the amount of the curable resin being determined by a calculation considering volatile loss of the curable resin, the calculation being performed for each of a plurality of regions of the substrate, forming the curable resin having the determined amount on the substrate, the forming the curable resin being performed for each of the plurality of regions of the substrate, contacting the curable resin formed on the substrate with a template, the template including a pattern to be filled with the curable resin by the contacting, and curing the curable resin under a condition where the curable resin is in contact with the template.
    Type: Application
    Filed: April 27, 2015
    Publication date: August 13, 2015
    Inventors: Takeshi KOSHIBA, Ikuo YONEDA, Tetsuro NAKASUGI