Patents by Inventor Noriko Sakurai

Noriko Sakurai 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: 20240096601
    Abstract: A target processing method includes: importing a target into a processing chamber; forming a film including carbon on the target using at least one of first ion including carbon and a first plasma including carbon; and removing the film by a reaction between a second plasma and the film, wherein the forming of the film and the removing of the film are alternately performed a number of times in the processing chamber without removing the target from the processing chamber.
    Type: Application
    Filed: February 3, 2023
    Publication date: March 21, 2024
    Inventors: Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
  • Patent number: 11931923
    Abstract: A method of manufacturing a template, has: preparing a substrate containing quartz and having a surface, the surface including a protrusion and a depression; and processing the depression. The processing of the depression includes: a first step of forming a film on the surface, the film including a first region and a second region, the first region being provided on the protrusion, and the second region being provided on a bottom of the depression and being thinner than the first region; a second step of removing the second region with the first region partly remaining to expose the bottom of the depression; and a third step of processing the exposed part of the depression using a mask made of the remainder of the first region.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: March 19, 2024
    Assignee: Kioxia Corporation
    Inventors: Takeharu Motokawa, Hideaki Sakurai, Noriko Sakurai, Ryu Komatsu
  • Patent number: 11796910
    Abstract: A template according to the present embodiment is a template used in a lithography process of a semiconductor manufacturing process. A first substrate includes a first face, a second face protruded from a portion of the first face, and a lateral face being a lateral face positioned between the second face and the first face and inclined with respect to the second face at a connection portion to the second face. A first material film is provided at least on the lateral face.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 24, 2023
    Assignee: Kioxia Corporation
    Inventors: Kosuke Takai, Shingo Kanamitsu, Noriko Sakurai
  • Patent number: 11789365
    Abstract: A method for processing a substrate includes forming a pattern on a substrate, supplying water to cover the pattern, and after the supplying the water, irradiating the pattern with light having a wavelength longer that which causes dissociation of water. A substrate processing apparatus of an embodiment includes a transfer chamber to receive a patterned substrate, a water supplying chamber to cover the pattern with water, and an irradiating chamber to irradiate a portion of the pattern with near-field light.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: October 17, 2023
    Assignee: Kioxia Corporation
    Inventors: Ryu Komatsu, Takeharu Motokawa, Noriko Sakurai, Hideaki Sakurai
  • Publication number: 20230307233
    Abstract: An example of an etching method according to the present disclosure, includes: performing a first process which includes forming a first layer containing halogen or holding the substrate in a gas atmosphere containing halogen; and performing a second process which includes removing a portion of the first layer and a portion of the substrate under the portion of the first layer by supplying the portion of the first layer with ions sourced from a solid material.
    Type: Application
    Filed: September 8, 2022
    Publication date: September 28, 2023
    Applicant: Kioxia Corporation
    Inventors: Noriko SAKURAI, Takeharu MOTOKAWA, Hideaki SAKURAI
  • Publication number: 20230296979
    Abstract: A template according to the present embodiment includes a substrate, a light transmissive film, and a plurality of convex parts. The substrate has a first surface. The light transmissive film is provided on the first surface, has a second surface on a side opposite to the substrate, and has a composition different from the composition of the substrate. The plurality of convex parts are provided on the second surface and have different heights.
    Type: Application
    Filed: June 16, 2022
    Publication date: September 21, 2023
    Applicant: Kioxia Corporation
    Inventors: Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
  • Publication number: 20230290619
    Abstract: According to one embodiment, a plasma treatment apparatus includes a first chamber, an electrode provided in the first chamber and having a surface, and a conveyance mechanism that places a carrier structure holding a treatment target in the first chamber such that a ferromagnetic body of the carrier structure is disposed between the surface of the electrode and the treatment target. The ferromagnetic body has a single polarity within a plane substantially parallel to the surface of the electrode.
    Type: Application
    Filed: September 2, 2022
    Publication date: September 14, 2023
    Inventors: Takeharu MOTOKAWA, Noriko Sakurai, Hideaki Sakurai
  • Publication number: 20230089980
    Abstract: According to one embodiment, a pattern forming method includes forming an organic film on a processing target material, the organic film comprising a convex part and a remaining film part adjacent to the convex part and thinner than the convex part. The method further includes irradiating the organic film with an electron beam to decrease a dry etching rate of the organic film. The method further includes removing the remaining film part by dry etching of the organic film. The method further includes forming a pattern on the processing target material by dry etching using the organic film from which the remaining film part has been removed as a mask.
    Type: Application
    Filed: March 14, 2022
    Publication date: March 23, 2023
    Applicant: Kioxia Corporation
    Inventors: Noriko SAKURAI, Kosuke TAKAI
  • Patent number: 11493846
    Abstract: According to one embodiment, a pattern forming method includes forming a resist film including a first core material pattern and a second core material pattern, on a first film laminated on a substrate; forming a second film at least on sidewalls of the first and second core material patterns; removing the first core material pattern while not removing the second core material pattern and the second film; and processing the first film by using, as a mask, the second core material pattern and the second film.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: November 8, 2022
    Assignee: Kioxia Corporation
    Inventors: Takeharu Motokawa, Noriko Sakurai, Ryu Komatsu, Hideaki Sakurai
  • Publication number: 20220299870
    Abstract: A template according to the present embodiment is a template used in a lithography process of a semiconductor manufacturing process. A first substrate includes a first face, a second face protruded from a portion of the first face, and a lateral face being a lateral face positioned between the second face and the first face and inclined with respect to the second face at a connection portion to the second face. A first material film is provided at least on the lateral face.
    Type: Application
    Filed: September 3, 2021
    Publication date: September 22, 2022
    Applicant: Kioxia Corporation
    Inventors: Kosuke TAKAI, Shingo KANAMITSU, Noriko SAKURAI
  • Publication number: 20220291581
    Abstract: A template according to an embodiment includes a substrate and a first layer. The substrate includes a first face having a pattern, and contains a first element. The first layer is in contact with the first face, and contains a compound having the first element and a second element different from the first element, the density of the compound in the first layer being higher than the density of the compound in the substrate.
    Type: Application
    Filed: September 7, 2021
    Publication date: September 15, 2022
    Applicant: Kioxia Corporation
    Inventors: Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
  • Publication number: 20220206382
    Abstract: According to one embodiment, a pattern formation method includes patterning a first film on a substate to have a plurality of lines extending in a first direction and a second pattern portion extending in a second direction intersecting the first direction. Each line having at least a first width and being spaced from an adjacent line in the second direction by a least three times the first width and spaced from ends of the lines in the first direction by twice or less the first width. A conformal film is then formed on the patterned first film. The conformal film having a thickness equal to the first width. The patterned first film is then removed while leaving portions of the conformal film that were previously on sidewalls of the plurality of lines behind.
    Type: Application
    Filed: August 31, 2021
    Publication date: June 30, 2022
    Inventors: Noriko SAKURAI, Takeharu MOTOKAWA, Ryu KOMATSU, Hideaki SAKURAI
  • Publication number: 20210291408
    Abstract: A method of manufacturing a template, has: preparing a substrate containing quartz and having a surface, the surface including a protrusion and a depression; and processing the depression. The processing of the depression includes: a first step of forming a film on the surface, the film including a first region and a second region, the first region being provided on the protrusion, and the second region being provided on a bottom of the depression and being thinner than the first region; a second step of removing the second region with the first region partly remaining to expose the bottom of the depression; and a third step of processing the exposed part of the depression using a mask made of the remainder of the first region.
    Type: Application
    Filed: December 9, 2020
    Publication date: September 23, 2021
    Applicant: Kioxia Corporation
    Inventors: Takeharu MOTOKAWA, Hideaki SAKURAI, Noriko SAKURAI, Ryu KOMATSU
  • Publication number: 20210238739
    Abstract: According to one embodiment, a processing apparatus includes a chamber, a first gas introduction port that introduces a first gas into the chamber, a first gas discharge port that discharges the first gas from the chamber, and a stage that supports a processing object in the chamber. The processing apparatus has a plasma generating section with an electrode to generate a plasma in the chamber. The processing apparatus includes a shield at a first position that is between the plasma generating section and the stage. The shield is light transmissive, but blocks radicals and ions generated with plasma. In some examples, the shield may be moveable from the first position to another position that is not between the plasma generating section and the stage.
    Type: Application
    Filed: September 1, 2020
    Publication date: August 5, 2021
    Inventors: Ryu KOMATSU, Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
  • Publication number: 20210088906
    Abstract: According to one embodiment, a pattern forming method includes forming a resist film including a first core material pattern and a second core material pattern, on a first film laminated on a substrate; forming a second film at least on sidewalls of the first and second core material patterns; removing the first core material pattern while not removing the second core material pattern and the second film; and processing the first film by using, as a mask, the second core material pattern and the second film.
    Type: Application
    Filed: March 13, 2020
    Publication date: March 25, 2021
    Applicant: Kioxia Corporation
    Inventors: Takeharu MOTOKAWA, Noriko SAKURAI, Ryu KOMATSU, Hideaki SAKURAI
  • Publication number: 20210080831
    Abstract: A method for processing a substrate includes forming a pattern on a substrate, supplying water to cover the pattern, and after the supplying the water, irradiating the pattern with light having a wavelength longer that which causes dissociation of water. A substrate processing apparatus of an embodiment includes a transfer chamber to receive a patterned substrate, a water supplying chamber to cover the pattern with water, and an irradiating chamber to irradiate a portion of the pattern with near-field light.
    Type: Application
    Filed: February 28, 2020
    Publication date: March 18, 2021
    Inventors: Ryu KOMATSU, Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
  • Patent number: 10809615
    Abstract: A pattern forming method comprises forming a line pattern in a first film. The line pattern includes a first pattern part including feature portions at a first dimension and a second pattern part adjacent to the first pattern part and including feature portions at a second dimension smaller than the first dimension. A second film is formed on the substrate conformally over the first film. The second film is etched to expose a top surface of the first pattern part and remove the second pattern part. The remaining first film is then removed, leaving portions of the second film that were formed on sidewalls of the first pattern part. The substrate is then processed by using those portions of the second film left after the removal of the first film as a mask.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: October 20, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Noriko Sakurai
  • Publication number: 20200089105
    Abstract: A pattern forming method comprises forming a line pattern in a first film. The line pattern includes a first pattern part including feature portions at a first dimension and a second pattern part adjacent to the first pattern part and including feature portions at a second dimension smaller than the first dimension. A second film is formed on the substrate conformally over the first film. The second film is etched to expose a top surface of the first pattern part and remove the second pattern part. The remaining first film is then removed, leaving portions of the second film that were formed on sidewalls of the first pattern part. The substrate is then processed by using those portions of the second film left after the removal of the first film as a mask.
    Type: Application
    Filed: February 27, 2019
    Publication date: March 19, 2020
    Inventor: Noriko Sakurai
  • Patent number: 9029266
    Abstract: According to one embodiment, a semiconductor device manufacturing method includes depositing a silicon film above a semiconductor substrate, forming an insulating film which includes silicon oxide or silicon nitride on the silicon film, forming a physical guide having a depressed portion above the insulating film, forming a directed self-assembly material layer which includes a first polymer and a second polymer in the depressed portion of the physical guide, phase-separating the directed self-assembly material layer into a first region which includes the first polymer and a second region which includes the second polymer, removing the second region, processing the insulating film by using the physical guide and the first region as masks, and transferring a pattern corresponding to the second region to the insulating film. Further, the silicon film is processed by using the pattern transferred onto the insulating film as a mask.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: May 12, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yusuke Kasahara, Noriko Sakurai
  • Publication number: 20140199847
    Abstract: According to one embodiment, a semiconductor device manufacturing method includes depositing a silicon film above a semiconductor substrate, forming an insulating film which includes silicon oxide or silicon nitride on the silicon film, forming a physical guide having a depressed portion above the insulating film, forming a directed self-assembly material layer which includes a first polymer and a second polymer in the depressed portion of the physical guide, phase-separating the directed self-assembly material layer into a first region which includes the first polymer and a second region which includes the second polymer, removing the second region, processing the insulating film by using the physical guide and the first region as masks, and transferring a pattern corresponding to the second region to the insulating film. Further, the silicon film is processed by using the pattern transferred onto the insulating film as a mask.
    Type: Application
    Filed: August 21, 2013
    Publication date: July 17, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yusuke KASAHARA, Noriko SAKURAI