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).
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Publication number: 20240096601Abstract: 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: ApplicationFiled: February 3, 2023Publication date: March 21, 2024Inventors: Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
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Patent number: 11931923Abstract: 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: GrantFiled: December 9, 2020Date of Patent: March 19, 2024Assignee: Kioxia CorporationInventors: Takeharu Motokawa, Hideaki Sakurai, Noriko Sakurai, Ryu Komatsu
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Patent number: 11796910Abstract: 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: GrantFiled: September 3, 2021Date of Patent: October 24, 2023Assignee: Kioxia CorporationInventors: Kosuke Takai, Shingo Kanamitsu, Noriko Sakurai
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Patent number: 11789365Abstract: 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: GrantFiled: February 28, 2020Date of Patent: October 17, 2023Assignee: Kioxia CorporationInventors: Ryu Komatsu, Takeharu Motokawa, Noriko Sakurai, Hideaki Sakurai
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Publication number: 20230307233Abstract: 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: ApplicationFiled: September 8, 2022Publication date: September 28, 2023Applicant: Kioxia CorporationInventors: Noriko SAKURAI, Takeharu MOTOKAWA, Hideaki SAKURAI
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Publication number: 20230296979Abstract: 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: ApplicationFiled: June 16, 2022Publication date: September 21, 2023Applicant: Kioxia CorporationInventors: Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
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Publication number: 20230290619Abstract: 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: ApplicationFiled: September 2, 2022Publication date: September 14, 2023Inventors: Takeharu MOTOKAWA, Noriko Sakurai, Hideaki Sakurai
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Publication number: 20230089980Abstract: 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: ApplicationFiled: March 14, 2022Publication date: March 23, 2023Applicant: Kioxia CorporationInventors: Noriko SAKURAI, Kosuke TAKAI
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Patent number: 11493846Abstract: 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: GrantFiled: March 13, 2020Date of Patent: November 8, 2022Assignee: Kioxia CorporationInventors: Takeharu Motokawa, Noriko Sakurai, Ryu Komatsu, Hideaki Sakurai
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Publication number: 20220299870Abstract: 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: ApplicationFiled: September 3, 2021Publication date: September 22, 2022Applicant: Kioxia CorporationInventors: Kosuke TAKAI, Shingo KANAMITSU, Noriko SAKURAI
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Publication number: 20220291581Abstract: 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: ApplicationFiled: September 7, 2021Publication date: September 15, 2022Applicant: Kioxia CorporationInventors: Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
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Publication number: 20220206382Abstract: 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: ApplicationFiled: August 31, 2021Publication date: June 30, 2022Inventors: Noriko SAKURAI, Takeharu MOTOKAWA, Ryu KOMATSU, Hideaki SAKURAI
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Publication number: 20210291408Abstract: 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: ApplicationFiled: December 9, 2020Publication date: September 23, 2021Applicant: Kioxia CorporationInventors: Takeharu MOTOKAWA, Hideaki SAKURAI, Noriko SAKURAI, Ryu KOMATSU
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Publication number: 20210238739Abstract: 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: ApplicationFiled: September 1, 2020Publication date: August 5, 2021Inventors: Ryu KOMATSU, Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
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Publication number: 20210088906Abstract: 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: ApplicationFiled: March 13, 2020Publication date: March 25, 2021Applicant: Kioxia CorporationInventors: Takeharu MOTOKAWA, Noriko SAKURAI, Ryu KOMATSU, Hideaki SAKURAI
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Publication number: 20210080831Abstract: 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: ApplicationFiled: February 28, 2020Publication date: March 18, 2021Inventors: Ryu KOMATSU, Takeharu MOTOKAWA, Noriko SAKURAI, Hideaki SAKURAI
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Patent number: 10809615Abstract: 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: GrantFiled: February 27, 2019Date of Patent: October 20, 2020Assignee: TOSHIBA MEMORY CORPORATIONInventor: Noriko Sakurai
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Publication number: 20200089105Abstract: 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: ApplicationFiled: February 27, 2019Publication date: March 19, 2020Inventor: Noriko Sakurai
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Patent number: 9029266Abstract: 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: GrantFiled: August 21, 2013Date of Patent: May 12, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Yusuke Kasahara, Noriko Sakurai
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Publication number: 20140199847Abstract: 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: ApplicationFiled: August 21, 2013Publication date: July 17, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yusuke KASAHARA, Noriko SAKURAI