Patents Assigned to Tokyo Electron Limited
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Patent number: 11885015Abstract: A deposition method includes preparing a substrate having an insulating film formed thereon; forming a molybdenum film on the insulating film by supplying a molybdenum-containing gas and a reducing gas to the substrate; and heat-treating the substrate having the molybdenum film formed on the insulating film, without exposing the substrate to atmospheric air.Type: GrantFiled: May 26, 2022Date of Patent: January 30, 2024Assignee: Tokyo Electron LimitedInventors: Katsumasa Yamaguchi, Tsubasa Yokoi
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Patent number: 11885024Abstract: A gas introduction structure extends in a longitudinal direction of a processing container having a substantially cylindrical shape to supply gas into the processing container. The gas introduction structure includes an introduction section that partitions an introduction chamber, an ejection section that partitions a plurality of ejection chambers each including a plurality of gas holes through which the gas is ejected into the processing container, and a branch section that partitions a branch chamber connected to the introduction chamber. The branch chamber is branched to correspond to the number of ejection chambers in a tournament manner and connected to the ejection chambers.Type: GrantFiled: September 13, 2021Date of Patent: January 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventors: Hiroki Iriuda, Reita Igarashi, Kuniyasu Sakashita
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Patent number: 11887822Abstract: An edge ring includes a ramp surface of which a height decreases from an outer edge-side portion toward an inner edge-side portion. The edge ring is configured to satisfy the relation of T2/T1>T4/T3. Where, T1 is a thickness of the edge ring, before plasma treatment, at a first position on the ramp surface of the inner edge-side portion, and T2 is a thickness of the edge ring, before plasma treatment, at a second position on the ramp surface of the outer edge-side portion. T3 is a thickness of the edge ring, after plasma treatment, at the first position, and T4 is a thickness of the edge ring, after plasma treatment, at the second position.Type: GrantFiled: July 6, 2021Date of Patent: January 30, 2024Assignee: Tokyo Electron LimitedInventors: Toshifumi Ishida, Yusuke Saitoh
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Patent number: 11887871Abstract: A substrate processing apparatus includes a processing tub configured to store therein a processing liquid in which multiple substrates are to be immersed; multiple liquid supplies each of which includes a supply line through which the processing liquid is supplied to an inside of a water tank of the processing tub and a heating device configured to heat the processing liquid at a portion of the supply line; and multiple in-tank temperature sensors configured to measure a temperature of the processing liquid at multiple positions within the water tank of the processing tub.Type: GrantFiled: July 29, 2020Date of Patent: January 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventors: Kazushige Sano, Yuichi Tanaka, Yoshihiro Kai
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Patent number: 11883837Abstract: Light can be used to monitor coating a liquid on a substrate. By directing the light to a spot on the substrate, when the liquid passes through the spot, some light will be reflected, while some light will be scattered. Monitoring this behavior can indicate whether a substrate has been successfully coated with the liquid, as well as identifying defects. Further, coating times can be monitored to make process adjustments.Type: GrantFiled: March 9, 2021Date of Patent: January 30, 2024Assignee: Tokyo Electron LimitedInventors: Mirko Vukovic, Daniel Fulford, Anton J. Devilliers
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Patent number: 11885003Abstract: A rotational drive device includes a first rotator configured to rotate with respect to a stator, a plurality of second rotators configured to rotate with respect to the first rotator, a plurality of drivers configured to rotatably drive the respective second rotators, and a plurality of driver controllers configured to rotate integrally with the first rotator and to control rotation of the drivers, respectively, the respective driver controllers being connected to one another by a communication network.Type: GrantFiled: December 3, 2020Date of Patent: January 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventors: Junnosuke Taguchi, Yasutomo Kimura
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Patent number: 11887861Abstract: A method of processing a substrate, includes: loading the substrate having a silicon-containing film formed thereon into a processing container; a first process of modifying the silicon-containing film by supplying a processing gas containing a halogen-containing gas and a basic gas to the substrate, in a state in which an internal pressure of the processing container is set to a first pressure, to generate a reaction product; a second process of vaporizing the reaction product by setting the internal pressure of the processing container to a second pressure lower than the first pressure; and alternately repeating the modifying the silicon-containing film and the vaporizing the reaction product, wherein subsequent rounds of the first process following the initial first process in the alternately repeating the modifying the silicon-containing film and the vaporizing the reaction product includes supplying the processing gas to the substrate on which the reaction product remains.Type: GrantFiled: January 18, 2021Date of Patent: January 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventor: Jaewon Woo
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Patent number: 11887897Abstract: Aspects of the present disclosure provide a method of fabricating a semiconductor device. For example, the method can include providing a substrate. The substrate can include a first type region and a second type region. The method can also include forming a multilayer stack on the substrate. The multilayer stack can include alternate metal layers and dielectric layers. The method can also include forming first and second openings through the multilayer stack to uncover the first and second type regions, respectively. The method can also include forming first and second vertical channel structures within the first and second openings, respectively. Each of the first and second vertical channel structures can have source, gate and drain regions being in contact with vertical sidewalls of the metal layers of the multilayer stack uncovered by a respective one of the first and second openings.Type: GrantFiled: April 22, 2021Date of Patent: January 30, 2024Assignee: Tokyo Electron LimitedInventors: Mark I. Gardner, H. Jim Fulford
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Patent number: 11887869Abstract: A substrate processing apparatus includes a substrate holder, a first cleaning body, a first moving mechanism, a second cleaning body, a second moving mechanism, and a controller. The first cleaning body cleans one of the upper surface and the lower surface of the substrate held by the substrate holder by ejecting fluid thereto or by coming into contact therewith. The second cleaning body cleans the other one of the upper surface and the lower surface of the substrate held by the substrate holder by coming into contact therewith. The controller controls the first moving mechanism and the second moving mechanism to perform a both-surface cleaning processing in which the first cleaning body which ejects the fluid to one surface or is in contact with the upper surface and the second cleaning body which is in contact with the lower surface are horizontally moved in synchronization with each other.Type: GrantFiled: September 6, 2021Date of Patent: January 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventors: Nobuhiko Mouri, Takanori Obaru, Yasushi Takiguchi, Teruhiko Kodama
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Patent number: 11887815Abstract: In one example, a plasma processing system includes a vacuum system, a plasma processing chamber including a chamber cavity coupled to the vacuum system, a substrate holder including a surface disposed inside the chamber cavity, a radio frequency (RF) source electrode coupled to an RF power source, the RF source electrode configured to ignite plasma in the chamber cavity. The system includes a microwave source coupled to a microwave oscillator, and a conductive spatial uniformity component including a plurality of through openings, where the conductive spatial uniformity component includes a major surface electromagnetically coupled to the microwave source, the major surface configured to couple microwave power to the plasma in the chamber cavity.Type: GrantFiled: May 4, 2021Date of Patent: January 30, 2024Assignee: Tokyo Electron LimitedInventors: Yunho Kim, Yanxiang Shi, Mingmei Wang
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Patent number: 11887824Abstract: A method of cleaning a plasma processing apparatus includes: disposing a first dummy substrate at a first position with respect to a stage inside a chamber and performing a first dry cleaning process inside the chamber; and disposing a second dummy substrate at a second position with respect to the stage inside the chamber and performing a second dry cleaning process inside the chamber, wherein each of a center of the first position and a center of the second position is located at a different position from a center of the stage in a plan view, and wherein the first position and the second position are different from each other in a plan view.Type: GrantFiled: July 27, 2021Date of Patent: January 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventors: Yasutaka Hama, Nobuaki Shindo
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Patent number: 11887821Abstract: An edge ring includes a first member made of a first material and having a contact surface with plasma generated inside the processing container, and a second member made of a second material having Young's modulus lower than that of the first material. The second member is provided on a side opposite to the contact surface of the first member such that a combined structure of the first member and the second member surrounds a periphery of a substrate placed on a stage inside a processing container of a plasma processing apparatus.Type: GrantFiled: August 21, 2020Date of Patent: January 30, 2024Assignee: TOKYO ELECTRON LIMITEDInventor: Masato Kon
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Publication number: 20240030010Abstract: An etching method includes: (a) providing a substrate including a base film and a mask having an opening and formed on the base film; (b) etching the base film using plasma; and (c) supplying hydrogen fluoride to the substrate under a pressure of 13.3 Pa or higher.Type: ApplicationFiled: July 25, 2023Publication date: January 25, 2024Applicant: Tokyo Electron LimitedInventors: Koki MUKAIYAMA, Maju TOMURA, Yoshihide KIHARA
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Publication number: 20240030011Abstract: This substrate transfer system is provided with: a load-lock module; an atmospheric transfer module having a first sidewall, a second sidewall and a third sidewall, the first sidewall extending along a first direction and connected to the load-lock module, the second sidewall extending along a second direction perpendicular to the first direction, the third sidewall being disposed on an opposite side of the second sidewall; a first load port extending outward from the second sidewall along the first direction; and a second load port extending outward from the third sidewall along the first direction.Type: ApplicationFiled: July 21, 2023Publication date: January 25, 2024Applicant: Tokyo Electron LimitedInventors: Toshiaki TOYOMAKI, Norihiko AMIKURA, Seiichi KAISE, Masatomo KITA
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Publication number: 20240030009Abstract: A base disposed in a plasma processing chamber. An electrostatic chuck disposed on an upper portion of the base, the electrostatic chuck including a first part and a second part. A first heater electrode layer group including at least one heater electrode layer disposed in the first part. A second heater electrode layer group including at least one heater electrode layer disposed in the second part. A power source is electrically connected to the first heater electrode layer group and the second heater electrode layer group. A controller configured to periodically and sequentially supply DC current from the power source to heater electrode layers included in the first heater electrode layer group and heater electrode layers included in the second heater electrode layer group.Type: ApplicationFiled: July 20, 2023Publication date: January 25, 2024Applicant: Tokyo Electron LimitedInventor: Kazuhito YAMADA
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Patent number: 11881410Abstract: A substrate processing apparatus includes: a chamber; a substrate support disposed in the chamber; a plasma generator configured to form a plasma in the chamber; and a controller configured to perform a process including: placing a substrate on the substrate support, the substrate including a first film, a second film and a third film, the first film containing a silicon, the second film having a second aperture, the first film being disposed between the second film and the third film; cooling the substrate to ?30° C. or less; etching the first film through the second aperture with a plasma formed from a first process gas containing a fluorocarbon gas, to form a first aperture of a tapered shape in the first film such that a width of the first aperture gradually decreases toward a bottom of the first aperture; and etching the third film through the first aperture.Type: GrantFiled: November 10, 2021Date of Patent: January 23, 2024Assignee: Tokyo Electron LimitedInventors: Yasutaka Hama, Motoki Noro, Shu Kino
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Patent number: 11881379Abstract: In a mask pattern forming method, a resist film is formed over a thin film, the resist film is processed into resist patterns having a predetermined pitch by photolithography, slimming of the resist patterns is performed, and an oxide film is formed on the thin film and the resist patterns after an end of the slimming step in a film deposition apparatus by supplying a source gas and an oxygen radical or an oxygen-containing gas. In the mask pattern forming method, the slimming and the oxide film forming are continuously performed in the film deposition apparatus.Type: GrantFiled: June 23, 2022Date of Patent: January 23, 2024Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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Patent number: 11881396Abstract: A deposition method of forming silicon oxide films collectively on a plurality of substrates in a processing container performs a plurality of execution cycles each of which includes: supplying a silicon material gas containing an organoamino-functionalized oligosiloxane compound into the processing container; and supplying an oxidizing gas into the processing container adjusted to a pressure of 1 Torr to 10 Torr (133 Pa to 1333 Pa).Type: GrantFiled: February 25, 2021Date of Patent: January 23, 2024Assignee: Tokyo Electron LimitedInventors: Koji Sasaki, Keisuke Suzuki, Tomoya Hasegawa
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Patent number: 11879839Abstract: A substrate processing apparatus includes a supply channel through which a liquid to be supplied to a substrate flows; and a foreign substance detecting unit configured to detect a foreign substance in the liquid based on a signal obtained when light, which is near-infrared light, is radiated toward a flow path forming unit constituting a part of the supply channel by a light projector so that light is emitted from the flow path forming unit and a light receiver receives the light emitted from the flow path forming unit.Type: GrantFiled: July 28, 2021Date of Patent: January 23, 2024Assignee: TOKYO ELECTRON LIMITEDInventors: Koudai Higashi, Masato Hayashi, Kohei Noguchi
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Patent number: 11882776Abstract: Methods are provided herein for improving oxygen content control in a Metal-Insulator-Metal (MIM) stack of an RERAM cell, while also maintaining throughput. More specifically, a single chamber solution is provided herein for etching and encapsulating the MIM stack of an RERAM cell to control the oxygen content in the memory cell dielectric of the RERAM cell. According to one embodiment, a non-oxygen-containing dielectric encapsulation layer is deposited onto the MIM stack in-situ while the substrate remains within the processing chamber used to etch the MIM stack. By etching the MIM stack and depositing the encapsulation layer within the same processing chamber, the techniques described herein minimize the exposure of the memory cell dielectric to oxygen, while maintaining throughput.Type: GrantFiled: March 24, 2021Date of Patent: January 23, 2024Assignee: Tokyo Electron LimitedInventors: Katie Lutker-Lee, Angelique Raley, Dina Triyoso