Patents by Inventor Takanori BANSE
Takanori BANSE 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: 20240071728Abstract: A substrate processing method (a) provides a substrate on a substrate support unit provided in a chamber, and (b) supplies a processing gas into the chamber. The substrate includes a first region formed of a material including silicon and a second region formed of a material different from the material of the first region. The processing gas includes tungsten and a component for etching the first region. The substrate processing method (c) repeats a cycle while the processing gas is supplied into the chamber at (c). The cycle includes first to third processes. The power level of a source radio-frequency power in the first process is higher than the power level of the source radio-frequency power in each of the second and third processes.Type: ApplicationFiled: August 31, 2023Publication date: February 29, 2024Applicant: Tokyo Electron LimitedInventors: Takanori BANSE, Shota YOSHIMURA, Hsinkai WANG
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Patent number: 11721522Abstract: A capacitively coupled plasma processing apparatus includes a chamber; a gas supply that supplies an inert gas into the chamber; a substrate support including a lower electrode; an upper electrode provided above the substrate support and including silicon; a first radio-frequency power supply electrically connected to the upper electrode; a second radio-frequency power supply electrically connected to the lower electrode; a bias power supply that applies a negative bias voltage to the upper electrode; and a controller that controls an overall operation of the capacitively coupled plasma processing apparatus such that the silicon-containing material is deposited on sidewalls of a mask of the substrate to narrow an opening formed on the mask by an amount greater in a second direction than in a first direction.Type: GrantFiled: June 8, 2022Date of Patent: August 8, 2023Assignee: TOKYO ELECTRON LIMITEDInventors: Kosuke Ogasawara, Kentaro Yamaguchi, Takanori Banse
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Publication number: 20220375724Abstract: A plasma processing method includes: (a) mounting a substrate including a first mask layer, which is a removal target, formed on a first layer with a metal-containing layer that is included therein to be partially exposed, on a stage disposed inside a processing container of the plasma processing apparatus; (b) supplying a process gas containing one or more of fluorocarbon gas and hydrofluorocarbon gas into the processing container; (c) supplying a first radio-frequency power that forms a plasma from the process gas into the processing container; (d) supplying a second radio-frequency power having a frequency lower than a frequency of the first radio-frequency power to the stage after a predetermined time is elapsed from stop of the first radio-frequency power; and (e) repeating (c) and (d).Type: ApplicationFiled: May 20, 2022Publication date: November 24, 2022Applicant: Tokyo Electron LimitedInventors: Manabu OIE, Takanori BANSE, Toru HISAMATSU
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Publication number: 20220301824Abstract: A capacitively coupled plasma processing apparatus includes a chamber; a gas supply that supplies an inert gas into the chamber; a substrate support including a lower electrode; an upper electrode provided above the substrate support and including silicon; a first radio-frequency power supply electrically connected to the upper electrode; a second radio-frequency power supply electrically connected to the lower electrode; a bias power supply that applies a negative bias voltage to the upper electrode; and a controller that controls an overall operation of the capacitively coupled plasma processing apparatus such that the silicon-containing material is deposited on sidewalls of a mask of the substrate to narrow an opening formed on the mask by an amount greater in a second direction than in a first direction.Type: ApplicationFiled: June 8, 2022Publication date: September 22, 2022Applicant: TOKYO ELECTRON LIMITEDInventors: Kosuke OGASAWARA, Kentaro YAMAGUCHI, Takanori BANSE
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Patent number: 11404249Abstract: A substrate processing apparatus includes a process chamber, a stage that is disposed in the process chamber and on which a substrate is placeable, a moving mechanism, and a focus ring. The focus ring is disposed on the stage and includes an inner focus ring disposed close to the substrate placed on the stage, a middle focus ring that is disposed outside of the inner focus ring and is movable in a vertical direction by the moving mechanism, and an outer focus ring that is disposed outside of the middle focus ring.Type: GrantFiled: March 20, 2018Date of Patent: August 2, 2022Assignee: Tokyo Electron LimitedInventors: Shuichi Takahashi, Takaharu Miyadate, Takanori Banse, Joji Takayoshi, Rumiko Moriya
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Patent number: 11367590Abstract: A plasma processing method includes: placing a substrate on a substrate support provided in a chamber of a capacitively coupled plasma processing apparatus where the substrate includes a silicon-containing film and a mask provided on the silicon-containing film and having an opening having a longitudinal direction; and supplying an inert gas into the chamber; and selectively performing one of supplying a first radio-frequency power to an upper electrode of the plasma processing apparatus to generate plasma from the inert gas and supplying a second radio-frequency power to a lower electrode of the plasma processing apparatus included in the substrate support, and applying a negative bias voltage to the upper electrode to cause positive ions from the plasma to collide with the upper electrode and release a silicon-containing material from the upper electrode, thereby depositing the silicon-containing material on the substrate.Type: GrantFiled: July 25, 2019Date of Patent: June 21, 2022Assignee: TOKYO ELECTRON LIMITEDInventors: Kosuke Ogasawara, Kentaro Yamaguchi, Takanori Banse
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Patent number: 11145490Abstract: A plasma processing method for a workpiece in a plasma processing apparatus includes (i) performing a first plasma processing on a workpiece, and (ii) performing a second plasma processing on the workpiece. Power of second radio frequency waves set in the second plasma processing is greater than the power of the second radio frequency waves set in the first plasma processing. In the second plasma processing, a magnetic field distribution having a horizontal component on an edge side of the workpiece greater than a horizontal component on a center of the workpiece is formed by an electromagnet.Type: GrantFiled: December 18, 2019Date of Patent: October 12, 2021Assignee: TOKYO ELECTRON LIMITEDInventors: Akihiro Yokota, Takanori Banse, Joji Takayoshi, Shinya Morikita, Naohiko Okunishi
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Publication number: 20210313148Abstract: A plasma etching method performed by a plasma processing apparatus is provided. The plasma processing apparatus includes an edge ring which includes an inner edge ring provided in a vicinity of a substrate to be placed on a stage, a middle edge ring arranged outside the inner edge ring, the middle edge ring being configured to be moved vertically by an actuation mechanism, and an outer edge ring arranged outside the middle edge ring. The method includes: performing first etching based on a first process condition; performing second etching based on a second process condition different from the first process condition; and moving the middle edge ring by the actuation mechanism, the moving being performed after the first etching is performed and before the second etching is performed.Type: ApplicationFiled: June 22, 2021Publication date: October 7, 2021Inventors: Kosuke OGASAWARA, Shuhei YOSHIBA, Takanori BANSE
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Publication number: 20210020409Abstract: A plasma processing method includes: placing a substrate on a substrate support provided in a chamber of a capacitively coupled plasma processing apparatus where the substrate includes a silicon-containing film and a mask provided on the silicon-containing film and having an opening having a longitudinal direction; and supplying an inert gas into the chamber; and selectively performing one of supplying a first radio-frequency power to an upper electrode of the plasma processing apparatus to generate plasma from the inert gas and supplying a second radio-frequency power to a lower electrode of the plasma processing apparatus included in the substrate support, and applying a negative bias voltage to the upper electrode to cause positive ions from the plasma to collide with the upper electrode and release a silicon-containing material from the upper electrode, thereby depositing the silicon-containing material on the substrate.Type: ApplicationFiled: July 25, 2019Publication date: January 21, 2021Applicant: Tokyo Electron LimitedInventors: Kosuke OGASAWARA, Kentaro YAMAGUCHI, Takanori BANSE
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Publication number: 20210020416Abstract: There is provided a method for driving a member provided in a processing chamber. The method includes irradiating to the member measurement light having a wavelength that penetrates the member, detecting intensity distribution of reflected light based on reflected light from an upper surface of the member and reflected light from a bottom surface of the member, calculating an optical path difference by applying Fourier transform to a spectrum indicating the intensity distribution, and determining a driving amount of the member based on the optical path difference. The method further includes driving the member based on the determined driving amount.Type: ApplicationFiled: September 29, 2020Publication date: January 21, 2021Applicant: TOKYO ELECTRON LIMITEDInventors: Rumiko MORIYA, Takanori BANSE, Suguru SATO, Yuuji AKIDUKI, Takehiro TANIKAWA
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Patent number: 10825662Abstract: There is provided a method for driving a member provided in a processing chamber. The method includes irradiating to the member measurement light having a wavelength that penetrates the member, detecting intensity distribution of reflected light based on reflected light from an upper surface of the member and reflected light from a bottom surface of the member, calculating an optical path difference by applying Fourier transform to a spectrum indicating the intensity distribution, and determining a driving amount of the member based on the optical path difference. The method further includes driving the member based on the determined driving amount.Type: GrantFiled: May 14, 2019Date of Patent: November 3, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Rumiko Moriya, Takanori Banse, Suguru Sato, Yuuji Akiduki, Takehiro Tanikawa
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Patent number: 10770268Abstract: In a plasma processing method, a carbon-containing film is formed on surfaces of components in a chamber by using a plasma of a carbon-containing gas, and a silicon-containing film whose film thickness is determined based on a film thickness of the carbon-containing film is formed on a surface of the carbon-containing film by a silicon-containing gas. Then, a target object is loaded into the chamber and processed by a plasma of a processing gas after the formation of the silicon-containing film. The silicon-containing film is removed from the surface of the carbon-containing film by using a plasma of a fluorine-containing gas after the target object processed by the plasma is unloaded from the chamber, and the carbon-containing film is removed from the surfaces of the components by using a plasma of an oxygen-containing gas.Type: GrantFiled: January 9, 2018Date of Patent: September 8, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Shinya Morikita, Takanori Banse, Takahisa Iwasaki, Ryosuke Niitsuma, Hiroki Taoka
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Patent number: 10707088Abstract: A method of processing a target object is provided. The target object has an etching target layer, an organic film on the etching target layer and a mask on the organic film. The organic film includes a first layer and a second layer, the mask is provided on the first layer, the first layer is provided on the second layer, and the second layer is provided on the etching target layer. The method includes generating plasma of a first gas within a processing vessel of a plasma processing apparatus in which the target object is accommodated; etching the first layer with the plasma of the first gas and the mask until the second layer is exposed; and conformally forming a protection film on a side surface of the first layer; and generating plasma of a second gas and removing the mask with the plasma of the second gas.Type: GrantFiled: August 10, 2017Date of Patent: July 7, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Shinya Morikita, Takanori Banse, Yuta Seya, Ryosuke Niitsuma
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Patent number: 10692726Abstract: A method MT according to an embodiment provides a technique capable of controlling a pattern shape during processing of an organic film and the like. A wafer W as an object to which the method MT in the embodiment is applied includes an etching target layer EL, an organic film OL, and a mask ALM, the organic film OL is constituted by a first region VL1 and a second region VL2, the mask ALM is provided on the first region VL1, the first region VL1 is provided on the second region VL2, and the second region VL2 is provided on the etching target layer EL. In the method MT, the first region VL1 is etched to reach the second region VL2 by generating a plasma of a gas containing nitrogen gas in the processing container 12 in which the wafer W is accommodated, a mask OLM1 is formed from the first region VL1, a protective film SX is conformally formed on a side surface SF of the mask OLM1, the second region VL2 is etched to reach the etching target layer EL to form a mask OLM2 from the second region VL2.Type: GrantFiled: July 4, 2017Date of Patent: June 23, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Shinya Morikita, Takanori Banse, Yuta Seya, Ryosuke Niitsuma
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Publication number: 20200126759Abstract: A plasma processing method for a workpiece in a plasma processing apparatus includes (i) performing a first plasma processing on a workpiece, and (ii) performing a second plasma processing on the workpiece. Power of second radio frequency waves set in the second plasma processing is greater than the power of the second radio frequency waves set in the first plasma processing. In the second plasma processing, a magnetic field distribution having a horizontal component on an edge side of the workpiece greater than a horizontal component on a center of the workpiece is formed by an electromagnet.Type: ApplicationFiled: December 18, 2019Publication date: April 23, 2020Applicant: TOKYO ELECTRON LIMITEDInventors: Akihiro YOKOTA, Takanori BANSE, Joji TAKAYOSHI, Shinya MORIKITA, Naohiko OKUNISHI
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Patent number: 10546723Abstract: A plasma processing method for a workpiece in a plasma processing apparatus includes (i) performing a first plasma processing on a workpiece, and (ii) performing a second plasma processing on the workpiece. Power of second radio frequency waves set in the second plasma processing is greater than the power of the second radio frequency waves set in the first plasma processing. In the second plasma processing, a magnetic field distribution having a horizontal component on an edge side of the workpiece greater than a horizontal component on a center of the workpiece is formed by an electromagnet.Type: GrantFiled: September 25, 2018Date of Patent: January 28, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Akihiro Yokota, Takanori Banse, Joji Takayoshi, Shinya Morikita, Naohiko Okunishi
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Publication number: 20190355557Abstract: There is provided a method for driving a member provided in a processing chamber. The method includes irradiating to the member measurement light having a wavelength that penetrates the member, detecting intensity distribution of reflected light based on reflected light from an upper surface of the member and reflected light from a bottom surface of the member, calculating an optical path difference by applying Fourier transform to a spectrum indicating the intensity distribution, and determining a driving amount of the member based on the optical path difference. The method further includes driving the member based on the determined driving amount.Type: ApplicationFiled: May 14, 2019Publication date: November 21, 2019Applicant: TOKYO ELECTRON LIMITEDInventors: Rumiko MORIYA, Takanori BANSE, Suguru SATO, Yuuji AKIDUKI, Takehiro TANIKAWA
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Publication number: 20190326092Abstract: A plasma etching method performed by a plasma processing apparatus is provided. The plasma processing apparatus includes an edge ring which includes an inner edge ring provided in a vicinity of a substrate to be placed on a stage, a middle edge ring arranged outside the inner edge ring, the middle edge ring being configured to be moved vertically by an actuation mechanism, and an outer edge ring arranged outside the middle edge ring. The method includes: performing first etching based on a first process condition; performing second etching based on a second process condition different from the first process condition; and moving the middle edge ring by the actuation mechanism, the moving being performed after the first etching is performed and before the second etching is performed.Type: ApplicationFiled: April 11, 2019Publication date: October 24, 2019Inventors: Kosuke OGASAWARA, Shuhei YOSHIBA, Takanori BANSE
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Publication number: 20190252198Abstract: A method MT according to an embodiment provides a technique capable of controlling a pattern shape during processing of an organic film and the like. A wafer W as an object to which the method MT in the embodiment is applied includes an etching target layer EL, an organic film OL, and a mask ALM, the organic film OL is constituted by a first region VL1 and a second region VL2, the mask ALM is provided on the first region VL1, the first region VL1 is provided on the second region VL2, and the second region VL2 is provided on the etching target layer EL. In the method MT, the first region VL1 is etched to reach the second region VL2 by generating a plasma of a gas containing nitrogen gas in the processing container 12 in which the wafer W is accommodated, a mask OLM1 is formed from the first region VL1, a protective film SX is conformally formed on a side surface SF of the mask OLM1, the second region VL2 is etched to reach the etching target layer EL to form a mask OLM2 from the second region VL2.Type: ApplicationFiled: July 4, 2017Publication date: August 15, 2019Applicant: TOKYO ELECTRON LIMITEDInventors: Shinya MORIKITA, Takanori BANSE, Yuta SEYA, Ryosuke NIITSUMA
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Publication number: 20190096635Abstract: A plasma processing method for a workpiece in a plasma processing apparatus includes (i) performing a first plasma processing on a workpiece, and (ii) performing a second plasma processing on the workpiece. Power of second radio frequency waves set in the second plasma processing is greater than the power of the second radio frequency waves set in the first plasma processing. In the second plasma processing, a magnetic field distribution having a horizontal component on an edge side of the workpiece greater than a horizontal component on a center of the workpiece is formed by an electromagnet.Type: ApplicationFiled: September 25, 2018Publication date: March 28, 2019Applicant: TOKYO ELECTRON LIMITEDInventors: Akihiro YOKOTA, Takanori BANSE, Joji TAKAYOSHI, Shinya MORIKITA, Naohiko OKUNISHI