Patents by Inventor Hiroyuki Toshima
Hiroyuki Toshima 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: 20200266063Abstract: In one embodiment, this hard mask for plasma etching is formed on a silicon-containing film. The hard mask is an amorphous film, and contains tungsten and silicon. The ratio of the concentration of tungsten and the concentration of silicon in the surface of the hard mask can be within the range between a ratio specifying that the concentration of tungsten is 35 at % and the concentration of silicon is 65 at % and a ratio specifying that the concentration of tungsten is 50 at % and the concentration of silicon is 50 at %.Type: ApplicationFiled: November 1, 2017Publication date: August 20, 2020Inventors: Hiroyuki TOSHIMA, Shinji FURUKAWA
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Publication number: 20200227273Abstract: There is provided a hard mask formed on a substrate for manufacturing a semiconductor device, the hard mask including a film made of a compound which is composed of Ru and an element selected from Ti, Zr, Hf, V, Nb, Ta, Mo, W, and Si.Type: ApplicationFiled: January 15, 2020Publication date: July 16, 2020Inventors: Hiroyuki TOSHIMA, Shinji FURUKAWA, Shota ISHIBASHI
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Publication number: 20200194261Abstract: Embodiments are described herein to reshape spacer profiles to improve spacer uniformity and thereby improve etch uniformity during pattern transfer associated with self-aligned multiple-patterning (SAMP) processes. For disclosed embodiments, cores are formed on a material layer for a substrate of a microelectronic workpiece. A spacer material layer is then formed over the cores. Symmetric spacers are then formed adjacent the cores by reshaping the spacer material layer using one or more directional deposition processes to deposit additional spacer material and using one or more etch process steps. For one example embodiment, one or more oblique physical vapor deposition (PVD) processes are used to deposit the additional spacer material for the spacer profile reshaping. This reshaping of the spacer profiles allows for symmetric spacers to be formed thereby improving etch uniformity during subsequent pattern transfer processes.Type: ApplicationFiled: March 12, 2019Publication date: June 18, 2020Inventors: Akiteru Ko, Kazuya Okubo, Hiroyuki Toshima
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Publication number: 20200071815Abstract: A film-forming device according to one embodiment includes a chamber body, a support, a moving device, a shielding member, a first holder and a second holder, in the film-forming device, a substrate supported by the support is linearly moved. The shielding member is disposed above an area where the substrate is moved, and includes a slit extending in a direction perpendicular to a movement direction of the substrate. The first holder and the second holder hold a first target and a second target, respectively, above the shielding member. The first target and the second target are arranged symmetrically with respect to a vertical plane including a linear path on which the center of the substrate is moved.Type: ApplicationFiled: October 23, 2017Publication date: March 5, 2020Applicant: Tokyo Electron LimitedInventors: Hiroyuki TOSHIMA, Tatsuo HATANO, Tetsuya MIYASHITA, Shinji FURUKAWA, Junichi TAKEI
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Publication number: 20200048759Abstract: There is provided a film forming apparatus, including: a processing chamber having a processing space in which a film forming process is performed on a substrate; a substrate support part configured to support the substrate inside the processing chamber; at least one sputtering particle emission part including a target and configured to emit sputtering particles to the substrate from the target; and at least one etching particle emission part configured to emit etching particles having an etching action with respect to the substrate, wherein the sputtering particles emitted from the at least one sputtering particle emission part are deposited on the substrate to form a film, and a portion of the film is etched by the etching particles emitted from the at least one etching particle emission part.Type: ApplicationFiled: August 7, 2019Publication date: February 13, 2020Inventors: Masato SHINADA, Hiroyuki TOSHIMA
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Publication number: 20200051796Abstract: A film-forming apparatus comprises: a processing chamber defining a processing space, a first sputter-particle emitter and a second sputter-particle emitter having targets, respectively, from which sputter-particles are emitted in different oblique directions in the processing space, a sputter-particle blocking plate having a passage hole through which the sputter particles emitted from the first sputter-particle emitter and the second sputter-particle emitter pass, a substrate support configured to support a substrate and provided at a side opposite the first sputter-particle emitter and the second sputter-particle emitter with respect to the sputter-particle blocking plate in the processing space, a substrate moving mechanism configured to linearly move the substrate supported on the substrate support, and a controller configured to control the emission of sputter-particles from the first sputter-particle emitter and the second sputter-particle emitter while controlling the substrate moving mechanism to movType: ApplicationFiled: August 5, 2019Publication date: February 13, 2020Inventors: Masato SHINADA, Hiroyuki TOSHIMA
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Publication number: 20200043711Abstract: A film forming apparatus for forming a film by reactive sputtering includes a processing chamber, a sputter mechanism, a sputtered particle shielding member, a reaction chamber, a substrate support, a substrate moving mechanism, a sputtered particle passage hole, and a reactive gas introducing unit. While moving a substrate by the substrate moving mechanism, sputtered particles, that are released to the discharge space by the sputter mechanism and pass through the sputtered particle passage hole to be injected to the reaction chamber, are reacted with a reactive gas introduced into the reaction chamber, and a reactive sputtering film generated by the reaction is formed on the substrate.Type: ApplicationFiled: July 25, 2019Publication date: February 6, 2020Inventors: Hiroyuki Toshima, Hiroyuki Iwashita, Tatsuo Hirasawa
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Patent number: 10189230Abstract: A method for forming a copper film is provided. In the method, a base film that is a titanium nitride film, a tungsten film or a tungsten nitride film is formed along a surface of an insulating film of an object. A copper film is formed on the base film of the object cooled to a temperature of 209 K or less.Type: GrantFiled: June 29, 2017Date of Patent: January 29, 2019Assignee: TOKYO ELECTRON LIMITEDInventors: Hiroyuki Toshima, Atsushi Shimada, Tatsuo Hirasawa, Tatsuo Hatano, Shinji Furukawa
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Patent number: 10068798Abstract: There is provided a method for performing a pre-treatment to form a copper wiring in a recess formed in a substrate, which includes forming a barrier layer on a surface of the substrate that defines the recess, and forming a seed layer on the barrier layer. The method further includes at least one of etching the barrier layer and etching the seed layer. In the at least one of etching the barrier layer and etching the seed layer, the substrate is inclined with respect to an irradiation direction of ions while rotating the substrate.Type: GrantFiled: June 20, 2017Date of Patent: September 4, 2018Assignee: TOKYO ELECTRON LIMITEDInventors: Hiroyuki Toshima, Tatsuo Hatano, Shinji Furukawa, Naoki Watanabe, Naoyuki Suzuki
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Publication number: 20180001597Abstract: A method for forming a copper film is provided. In the method, a base film that is a titanium nitride film, a tungsten film or a tungsten nitride film is formed along a surface of an insulating film of an object. A copper film is formed on the base film of the object cooled to a temperature of 209 K or less.Type: ApplicationFiled: June 29, 2017Publication date: January 4, 2018Inventors: Hiroyuki TOSHIMA, Atsushi SHIMADA, Tatsuo HIRASAWA, Tatsuo HATANO, Shinji FURUKAWA
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Publication number: 20170372951Abstract: There is provided a method for performing a pre-treatment to form a copper wiring in a recess formed in a substrate, which includes forming a barrier layer on a surface of the substrate that defines the recess, and forming a seed layer on the barrier layer. The method further includes at least one of etching the barrier layer and etching the seed layer. In the at least one of etching the barrier layer and etching the seed layer, the substrate is inclined with respect to an irradiation direction of ions while rotating the substrate.Type: ApplicationFiled: June 20, 2017Publication date: December 28, 2017Inventors: Hiroyuki TOSHIMA, Tatsuo HATANO, Shinji FURUKAWA, Naoki WATANABE, Naoyuki SUZUKI
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Publication number: 20160071707Abstract: A processing apparatus includes a processing chamber, a rotatable mounting table, a cooling mechanism and a driving mechanism. A sputtering target is provided in the processing chamber. The rotatable mounting table is provided in the processing chamber and configured to mount thereon an object to be processed. The cooling mechanism is configured to cool the mounting table. The driving mechanism is configured to change a relative position of the mounting table with respect to the cooling mechanism. The driving mechanism changes a conductivity of heat from the mounting table to the cooling mechanism at least by switching a first state in which the mounting table and the cooling mechanism are separated from each other and a second state in which the mounting table and the cooling mechanism become close to each other.Type: ApplicationFiled: September 1, 2015Publication date: March 10, 2016Inventors: Shinji FURUKAWA, Hiroyuki TOSHIMA, Tooru KITADA, Kanto NAKAMURA, Kazunaga ONO
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Patent number: 9064690Abstract: A Cu wiring forming method forms Cu wiring in a recess of a predetermined pattern including a trench formed in an insulating film on a substrate surface. The method includes: forming a barrier film at least on a surface of the recess; forming a Cu film by PVD to fill the recess with the Cu film; forming an additional layer on the Cu film; polishing an entire surface by CMP to form the Cu wiring in the recess; forming a metal cap including a manganese oxide film on an entire surface including the insulating film and the Cu wiring of the substrate after performing the CMP polishing; and forming a dielectric cap on the metal cap.Type: GrantFiled: August 8, 2013Date of Patent: June 23, 2015Assignee: TOKYO ELECTRON LIMITEDInventors: Tadahiro Ishizaka, Atsushi Gomi, Kenji Suzuki, Tatsuo Hatano, Hiroyuki Toshima, Yasushi Mizusawa
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Patent number: 8859422Abstract: A method of forming a Cu wiring in a trench or hole formed in a substrate is provided. The method includes forming a barrier film on the surface of the trench or hole, forming a Ru film on the barrier film, and embedding Cu in the trench or hole by forming a Cu film on the Ru film using PVD while annealing the substrate such that migration of copper into the trench or hole occurs.Type: GrantFiled: January 26, 2012Date of Patent: October 14, 2014Assignee: Tokyo Electron LimitedInventors: Tadahiro Ishizaka, Atsushi Gomi, Takara Kato, Osamu Yokoyama, Takashi Sakuma, Chiaki Yasumuro, Hiroyuki Toshima, Tatsuo Hatano, Yasushi Mizusawa, Masamichi Hara, Kenzi Suzuki
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Publication number: 20140287163Abstract: A method of forming a Cu wiring in a trench or hole formed in a substrate is provided. The method includes forming a barrier film on the surface of the trench or hole, forming a Ru film on the barrier film, and embedding Cu in the trench or hole by forming a Cu film on the Ru film using PVD while annealing the substrate such that migration of copper into the trench or hole occurs.Type: ApplicationFiled: June 6, 2014Publication date: September 25, 2014Inventors: Tadahiro ISHIZAKA, Atsushi GOMI, Takara FUKUSHIMA, Osamu YOKOYAMA, Takashi SAKUMA, Chiaki YASUMURO, Hiroyuki TOSHIMA, Tatsuo HATANO, Yasushi MIZUSAWA, Masamichi HARA, Kenzi SUZUKI
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Publication number: 20140060572Abstract: In a plasma processing apparatus, a mounting table is provided in a processing chamber, and a remote plasma generating unit is configured to generate an excited gas by exiting a hydrogen-containing gas. The remote plasma generating unit has an outlet for discharging the excited gas. A diffusion unit is provided to correspond to the outlet of the remote plasma generating unit and serves to receive the excited gas flowing from the outlet and diffuse the hydrogen active species having a reduced amount of hydrogen ions. An ion filter is disposed between the diffusion unit and the mounting table while being separated from the diffusion unit. The ion filter serves to capture the hydrogen ions contained in the hydrogen active species diffused by the diffusion unit and allow the hydrogen active species having a further reduced amount of hydrogen ions to pass therethrough the mounting table.Type: ApplicationFiled: August 26, 2013Publication date: March 6, 2014Applicant: TOKYO ELECTRON LIMITEDInventors: Chiaki YASUMURO, Takashi Sakuma, Osamu Yokoyama, Hiroyuki Toshima, Masamichi Hara, Cheonsoo Han, Morihiro Takanashi, Toshiaki Fujisato
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Publication number: 20140045329Abstract: A Cu wiring forming method forms Cu wiring in a recess of a predetermined pattern including a trench formed in an insulating film on a substrate surface. The method includes: forming a barrier film at least on a surface of the recess; forming a Cu film by PVD to fill the recess with the Cu film; forming an additional layer on the Cu film; polishing an entire surface by CMP to form the Cu wiring in the recess; forming a metal cap including a manganese oxide film on an entire surface including the insulating film and the Cu wiring of the substrate after performing the CMP polishing; and forming a dielectric cap on the metal cap.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Applicant: TOKYO ELECTRON LIMITEDInventors: Tadahiro ISHIZAKA, Atsushi Gomi, Kenji Suzuki, Tatsuo Hatano, Hiroyuki Toshima, Yasushi Mizusawa
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Patent number: 8617363Abstract: A magnetron sputtering apparatus where a target is disposed to face a substrate installed in a vacuum chamber and magnets are disposed on a rear surface of the target, including a power supply unit configured to apply a voltage to the target; and a magnet array body including a magnet group arranged on a base body provided at the rear surface of the target. In the magnet array body, rod-shaped magnets each having different polarities at opposite ends thereof are disposed in a mesh shape on a surface of the base body facing the target; the mesh has a 2n polygonal shape (n being an integer greater than or equal to 2); permeable core members are disposed at intersection points of the mesh surrounded by the ends of the rod-shaped magnets; and end portions of the rod-shaped magnets which surround each of the core members have a same polarity.Type: GrantFiled: October 26, 2012Date of Patent: December 31, 2013Assignee: Tokyo Electron LimitedInventors: Shigeru Mizuno, Hiroyuki Toshima
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Publication number: 20130237053Abstract: A film forming method which generates metal ions from a metal target with a plasma in a processing chamber and attracts the metal ions with a bias to deposit a metal thin film on a target object wherein trenches are formed. The method includes: generating metal ions from a target and attracting the metal ions into a target object with a bias to form a base film in a trench; ionizing a rare gas with the bias in a state where no metal ion is generated and attracting the generated ions into the target object to etch the base film; and plasma sputtering the target to generate metal ions and attracting the metal ions into the object with a high frequency power for bias to deposit a main film as a metal film, while reflowing the main film by heating.Type: ApplicationFiled: September 26, 2011Publication date: September 12, 2013Applicant: Tokyo Electron LimitedInventors: Tadahiro Ishizaka, Takashi Sakuma, Tatsuo Hatano, Osamu Yokoyama, Atsushi Gomi, Chiaki Yasumuro, Toshihiko Fukushima, Hiroyuki Toshima, Masaya Kawamata, Yasushi Mizusawa, Takara Kato
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Publication number: 20130081938Abstract: A magnetron sputtering apparatus in which a target is disposed to face a substrate includes a magnet array body including a magnet group arranged on a base body, and a rotating mechanism for rotating the magnet array body around an axis perpendicular to the substrate. In the magnet array body, N poles and S poles constituting the magnet group are arranged to be spaced from each other along a surface facing the target such that a plasma is generated based on a drift of electrons by a cusp magnetic field. Magnets located on the outermost periphery of the magnet group are arranged in a line to prevent the electrons from being released from constraint of the cusp magnetic field and jumping out of the cusp magnetic field. A distance between the target and the substrate during sputtering is equal to or less than 30 mm.Type: ApplicationFiled: September 28, 2012Publication date: April 4, 2013Inventors: Shigeru MIZUNO, Hiroyuki TOSHIMA, Atsushi GOMI, Tetsuya MIYASHITA, Tatsuo HATANO, Yasushi MIZUSAWA