Patents Assigned to Kokusai Electric Corporation
  • Patent number: 11967512
    Abstract: Described herein is a technique capable of reducing a thermal damage to a furnace opening structure when processing a substrate at a high temperature. According to one aspect thereof, there is provided a substrate processing apparatus including: a reaction tube provided with a furnace opening; heaters provided respectively in a plurality of zones arranged along a tube axis direction; temperature sensors respectively corresponding to the zones; a temperature controller configured to control electric power based on temperature data obtained by the temperature sensors, wherein the temperature controller is configured to, when the substrates are subject to a heat treatment process by the heaters, control the electric power supplied to the heaters such that temperatures of upper heaters about as high as the substrates reach predetermined temperatures, and that a temperature gradient is formed in lower zones lower than the substrates such that a temperature decreases toward the furnace opening.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: April 23, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Makoto Sambu, Nobuaki Takehashi
  • Patent number: 11967500
    Abstract: There is provided a process of forming a film containing a metal element, an additional element different from the metal element and at least one of nitrogen and carbon on a substrate by performing a cycle a predetermined number of times, the cycle including non-simultaneously performing: (a) supplying a first precursor gas containing the metal element and a second precursor gas containing the additional element to the substrate so that supply periods of the first precursor gas and the second precursor gas at least partially overlap with each other; and (b) supplying a reaction gas containing the at least one of nitrogen and carbon to the substrate.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: April 23, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Arito Ogawa, Atsuro Seino
  • Patent number: 11967499
    Abstract: There is provided a technique that includes (a) forming a first film having a first thickness on an underlayer by supplying a first process gas not including oxidizing gas to a substrate, wherein the first film contains silicon, carbon, and nitrogen and does not contain oxygen, and the underlayer is exposed on a surface of the substrate and is at least one selected from the group of a conductive metal-element-containing film and a nitride film; and (b) forming a second film having a second thickness larger than the first thickness on the first film by supplying a second process gas including oxidizing gas to the substrate, wherein the second film contains silicon, oxygen, and nitrogen, and wherein in (b), oxygen atoms derived from the oxidizing gas and diffuse from a surface of the first film toward the underlayer are absorbed by the first film and the first film is modified.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: April 23, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Yoshitomo Hashimoto, Tatsuru Matsuoka
  • Patent number: 11966210
    Abstract: A substrate processing apparatus includes a device management controller including a parts management control part configured to monitor the state of parts constituting the apparatus, a device state monitoring control part configured to monitor integrity of device data obtained from an operation state of the parts constituting the apparatus, and a data matching control part configured to monitor facility data provided from a factory facility to the apparatus. The device management controller is configured to derive information evaluating the operation state of the apparatus based on a plurality of monitoring result data selected from a group consisting of maintenance timing monitoring result data acquired by the parts management control part, device state monitoring result data acquired by the device state monitoring control part, and utility monitoring result data acquired by the data matching control part.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: April 23, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Kazuhide Asai, Kazuyoshi Yamamoto, Hidemoto Hayashihara, Takayuki Kawagishi, Kayoko Yashiki, Yukio Miyata, Hiroyuki Iwakura, Masanori Okuno, Kenichi Fujimoto, Ryuichi Kaji
  • Patent number: 11967490
    Abstract: There is provided a substrate processing apparatus that includes a process chamber in which at least one substrate is processed; a gas supplier configured to supply a gas; and a buffer structure. The buffer structure includes at least two plasma generation regions in which gas is converted into plasma by a pair of electrodes connected to a high-frequency power supply and an electrode to be grounded, a first gas supply port that supplies a gas generated in a first plasma generation region among the at least two plasma generation regions, and a second gas supply port that supplies a gas generated in a second plasma generation region among the at least two plasma generation regions.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: April 23, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Akihiro Sato, Tsuyoshi Takeda, Yukitomo Hirochi
  • Patent number: 11965240
    Abstract: There is provided a technique that includes: removing a deposit that adheres to an interior of a process chamber by performing a cycle a predetermined number of times, the cycle including performing sequentially: (a) supplying a cleaning gas to the interior of the process chamber until an internal pressure of the process chamber rises to a first pressure range; (b) exhausting the interior of the process chamber and supplying the cleaning gas to the interior of the process chamber in parallel to maintain the internal pressure of the process chamber within the first pressure range; and (c) exhausting the interior of the process chamber until the internal pressure of the process chamber reaches a second pressure that is below the first pressure range.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: April 23, 2024
    Assignee: Kokusai Electric Corporation
    Inventor: Keigo Nishida
  • Patent number: 11967501
    Abstract: Described herein is a technique capable of improving a film uniformity on a surface of a substrate and a film uniformity among a plurality of substrates including the substrate. According to one aspect thereof, there is provided a substrate processing apparatus including: a substrate retainer including: a product wafer support region, an upper dummy wafer support region and a lower dummy wafer support region; a process chamber in which the substrate retainer is accommodated; a first, a second and a third gas supplier; and an exhaust system. Each of the first gas and the third gas supplier includes a vertically extending nozzle with holes, wherein an upper of an uppermost hole and a lower end of a lowermost hole are arranged corresponding to an uppermost and a lowermost dummy wafer, respectively. The second gas supplier includes a nozzle with holes or a slit.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: April 23, 2024
    Assignee: Kokusai Electric Corporation
    Inventors: Hiroaki Hiramatsu, Shuhei Saido, Takuro Ushida
  • Patent number: 11967534
    Abstract: A technique capable of coping with change in the environment for each of the substrate placing surfaces is provided. According to one aspect thereof, there is provided a method of manufacturing a semiconductor device, including: (a) supplying a gas to a process vessel through branch pipes while substrates are placed on substrate placing surfaces arranged in the process vessel, respectively; (b) detecting at least one among: information of a component corresponding to each of the substrate placing surfaces; and an amount of the gas supplied to each of the branch pipes; (c) determining a state level of each of the substrate placing surfaces based on the detected information; and (d) selecting a substrate placing surface among the substrate placing surfaces to which a substrate subsequently loaded into the process vessel is to be transferred next according to the state level of each of the substrate placing surfaces.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: April 23, 2024
    Assignee: Kokusai Electric Corporation
    Inventor: Tsukasa Kamakura
  • Patent number: 11967513
    Abstract: Described herein is a technique capable of reducing an amount of moisture in a low temperature region in a substrate processing apparatus provided with a transfer chamber. According to one aspect of the technique, there is provided a substrate processing apparatus including: a process chamber provided with a heater; a load lock chamber; a transfer chamber provided between the process chamber and the load lock chamber and including a first region provided adjacent to the process chamber and a second region provided more adjacent to the load lock chamber than the first region and whose temperature is lower than a temperature of the first region; a detector capable of detecting an amount of moisture in the transfer chamber; and an inert gas supplier capable of supplying an inert gas toward the second region in the transfer chamber.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: April 23, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Teruo Yoshino, Naofumi Ohashi, Tadashi Takasaki
  • Patent number: 11961715
    Abstract: Described herein is a technique capable of efficiently removing a foreign substance in a reaction tube. According to one aspect of the technique, there is provided a substrate processing apparatus including: a reaction tube in which a substrate is processed; and a substrate retainer including a plurality of support columns configured to support the substrate, wherein at least one among the plurality of the support columns includes: a hollow portion through which an inert gas is supplied; and a gas supply port through which the inert gas is supplied toward an inner wall of the reaction tube.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: April 16, 2024
    Assignee: Kokusai Electric Corporation
    Inventors: Daisuke Hara, Takashi Yahata, Tsuyoshi Takeda, Kenji Ono, Kazuhiko Yamazaki
  • Patent number: 11961733
    Abstract: There is included forming an oxide film on a substrate by alternately performing: forming the first oxide film containing an atom X by performing a first cycle including non-simultaneously performing forming a first layer including a component in which a first functional group is bonded to the atom X, and forming a second layer containing the atom X and oxygen by oxidizing the first layer; and forming the second oxide film containing the atom X by performing a second cycle including non-simultaneously performing forming a third layer including a component in which the first functional group is bonded to the atom X, and forming a fourth layer containing the atom X and oxygen by oxidizing the third layer, under a processing condition that an oxidizing power is higher than an oxidizing power when oxidizing the first layer.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: April 16, 2024
    Assignee: Kokusai Electric Corporation
    Inventors: Tomiyuki Shimizu, Masaya Nagato, Takashi Ozaki, Yoshitomo Hashimoto, Katsuyoshi Harada
  • Patent number: 11952664
    Abstract: Described herein is a technique capable of improving the uniformity of the film formation among the substrates. According to the technique described herein, there is provided a configuration including: a reaction tube having a process chamber where a plurality of substrates are processed; a buffer chamber protruding outward from the reaction tube and configured to supply a process gas to the process chamber, the buffer chamber including: a first nozzle chamber where a first nozzle is provided; and a second nozzle chamber where a second nozzle is provided; an opening portion provided at a lower end of an inner wall of the reaction tube facing the buffer chamber; and a shielding portion provided at a communicating portion of the opening portion between the second nozzle chamber and the process chamber.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: April 9, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Hidenari Yoshida, Takeo Hanashima, Hiroaki Hiramatsu
  • Publication number: 20240112907
    Abstract: There is provided a technique that includes: (a) forming an oxide layer containing a predetermined element on a first film formed on a substrate by supplying a precursor gas containing the predetermined element to the substrate such that hydroxyl group terminations are formed on a surface of the oxide layer and a density of the hydroxyl group terminations on the oxide layer is higher than a density of hydroxyl group terminations on a surface of the first film before (a); and (b) hydrophobizing the surface of the oxide layer by supplying a modifying gas containing a hydrocarbon group to the substrate.
    Type: Application
    Filed: September 15, 2023
    Publication date: April 4, 2024
    Applicant: Kokusai Electric Corporation
    Inventors: Shoma MIYATA, Kimihiko NAKATANI, Takayuki WASEDA, Yoshitomo HASHIMOTO, Yoshiro HIROSE
  • Patent number: 11948778
    Abstract: A conventional substrate processing apparatus for generating plasma cannot generate plasma with high density and thus throughput of substrate processing is low. In order to solve this problem, provided is a substrate processing apparatus including a reaction vessel having a tubular shape and provided with a coil installed at an outer circumference thereof; a cover installed at a first end of the reaction vessel; a gas introduction port installed at the cover; a first plate installed between the gas introduction port and an upper end of the coil; a second plate installed between the first plate and the upper end of the coil; a substrate processing chamber installed at a second end of the reaction vessel; and a gas exhaust part connected to the substrate processing chamber.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: April 2, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Hidehiro Yanai, Shin Hiyama, Toru Kakuda, Toshiya Shimada, Tomihiro Amano
  • Patent number: D1020668
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: April 2, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Toru Kagaya, Yoshimasa Nagatomi
  • Patent number: D1022904
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: April 16, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Yusaku Okajima
  • Patent number: D1022905
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: April 16, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Yusaku Okajima
  • Patent number: D1022906
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: April 16, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Yusaku Okajima
  • Patent number: D1022907
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: April 16, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Yusaku Okajima
  • Patent number: D1022933
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: April 16, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventor: Yusaku Okajima