Patents by Inventor Masayuki Asai
Masayuki Asai 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: 20230298883Abstract: Provided is processing of a substrate including: forming film on substrate by performing cycle, multiple times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate. In (a), at least one of the precursor and inert gas stored in first tank is supplied to the substrate, and at least one of the precursor and inert gas stored in second tank is supplied to the substrate. A concentration of the precursor gas in the first tank differs from that in the second tank. Further, in (a), the at least one of the precursor and inert gas is supplied from the first tank to the substrate, and the at least one of the precursor and inert gas is supplied from the second tank to the substrate to suppress multiple adsorption of molecules constituting the precursor gas on the substrate's surface.Type: ApplicationFiled: May 24, 2023Publication date: September 21, 2023Applicant: Kokusai Electric CorporationInventors: Masayuki ASAI, Tomoki Imamura, Kazuyuki Okuda, Yasuhiro Inokuchi, Norikazu Mizuno
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Patent number: 11705325Abstract: Provided is processing of a substrate including: forming film on substrate by performing cycle, multiple times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate. In (a), at least one of the precursor and inert gas stored in first tank is supplied to the substrate, and at least one of the precursor and inert gas stored in second tank is supplied to the substrate. A concentration of the precursor gas in the first tank differs from that in the second tank. Further, in (a), the at least one of the precursor and inert gas is supplied from the first tank to the substrate, and the at least one of the precursor and inert gas is supplied from the second tank to the substrate to suppress multiple adsorption of molecules constituting the precursor gas on the substrate's surface.Type: GrantFiled: November 8, 2022Date of Patent: July 18, 2023Assignee: KOKUSAI ELECTRIC CORPORATIONInventors: Masayuki Asai, Tomoki Imamura, Kazuyuki Okuda, Yasuhiro Inokuchi, Norikazu Mizuno
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Publication number: 20230070910Abstract: Provided is processing of a substrate including: forming film on substrate by performing cycle, multiple times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate. In (a), at least one of the precursor and inert gas stored in first tank is supplied to the substrate, and at least one of the precursor and inert gas stored in second tank is supplied to the substrate. A concentration of the precursor gas in the first tank differs from that in the second tank. Further, in (a), the at least one of the precursor and inert gas is supplied from the first tank to the substrate, and the at least one of the precursor and inert gas is supplied from the second tank to the substrate to suppress multiple adsorption of molecules constituting the precursor gas on the substrate's surface.Type: ApplicationFiled: November 8, 2022Publication date: March 9, 2023Applicant: KOKUSAI ELECTRIC CORPORATIONInventors: Masayuki ASAI, Tomoki IMAMURA, Kazuyuki OKUDA, Yasuhiro INOKUCHI, Norikazu MIZUNO
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Patent number: 11527401Abstract: There is provided technique including: forming film on substrate by performing cycle, predetermined number of times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate, wherein in (a), at least one selected from the group of the precursor gas and the inert gas stored in first tank is supplied to the substrate, and at least one selected from the group of the precursor gas and the inert gas stored in second tank is supplied to the substrate, and concentration of the precursor gas in the first tank while at least one selected from the group of the precursor gas and the inert gas is stored in the first tank differs from that in the second tank while at least one selected from the group of the precursor gas and the inert gas is stored in the second tank.Type: GrantFiled: May 15, 2020Date of Patent: December 13, 2022Assignee: KOKUSAI ELECTRIC CORPORATIONInventors: Masayuki Asai, Tomoki Imamura, Kazuyuki Okuda, Yasuhiro Inokuchi, Norikazu Mizuno
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Publication number: 20200365388Abstract: There is provided technique including: forming film on substrate by performing cycle, predetermined number of times, including non-simultaneously performing: (a) supplying precursor gas and inert gas to the substrate; and (b) supplying reaction gas to the substrate, wherein in (a), at least one selected from the group of the precursor gas and the inert gas stored in first tank is supplied to the substrate, and at least one selected from the group of the precursor gas and the inert gas stored in second tank is supplied to the substrate, and concentration of the precursor gas in the first tank while at least one selected from the group of the precursor gas and the inert gas is stored in the first tank differs from that in the second tank while at least one selected from the group of the precursor gas and the inert gas is stored in the second tankType: ApplicationFiled: May 15, 2020Publication date: November 19, 2020Applicant: KOKUSAI ELECTRIC CORPORATIONInventors: Masayuki ASAI, Tomoki IMAMURA, Kazuyuki OKUDA, Yasuhiro INOKUCHI, Norikazu MIZUNO
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Patent number: 9963785Abstract: Disclosed is a method of manufacturing a semiconductor device including: performing a pre-process to a metal film or a GST film by supplying a first processing gas to a substrate, on a surface of which the metal film or the GST film is formed, without supplying a second processing gas; and performing a formation process to the substrate to which the pre-process has been performed such that a film is formed on the metal film or the GST film by executing at least one cycle of alternately (i) supplying the first processing gas, and (ii) supplying the second processing gas that is activated by plasma excitation.Type: GrantFiled: March 25, 2015Date of Patent: May 8, 2018Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Masayuki Asai, Koichi Honda, Mamoru Umemoto, Kazuyuki Okuda
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Patent number: 9895727Abstract: A method of manufacturing a semiconductor device is disclosed. The method includes processing a substrate by supplying a process gas to the substrate in a process chamber. The method further includes performing a purge to an interior of the process chamber while periodically changing an internal pressure of the process chamber based on a pressure width by setting a process of supplying a purge gas into the process chamber to increase the internal pressure of the process chamber and a process of vacuum-exhausting an interior of the process chamber to decrease the internal pressure of the process chamber to one cycle and repeating the cycle a plurality of times.Type: GrantFiled: September 22, 2016Date of Patent: February 20, 2018Assignee: HITACHI KOKUSAI ELECTRIC, INC.Inventors: Yoshinobu Nakamura, Masayoshi Minami, Masayuki Asai, Kazuyuki Okuda, Yuji Urano
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Publication number: 20170087606Abstract: A method of manufacturing a semiconductor device is disclosed. The method includes processing a substrate by supplying a process gas to the substrate in a process chamber. The method further includes performing a purge to an interior of the process chamber while periodically changing an internal pressure of the process chamber based on a pressure width by setting a process of supplying a purge gas into the process chamber to increase the internal pressure of the process chamber and a process of vacuum-exhausting an interior of the process chamber to decrease the internal pressure of the process chamber to one cycle and repeating the cycle a plurality of times.Type: ApplicationFiled: September 22, 2016Publication date: March 30, 2017Applicant: HITACHI KOKUSAI ELECTRIC INC.Inventors: Yoshinobu NAKAMURA, Masayoshi MINAMI, Masayuki ASAI, Kazuyuki OKUDA, Yuji URANO
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Patent number: 9593422Abstract: Disclosed is a method of manufacturing a semiconductor device including: performing a pre-process to a substrate, on a surface of which a metal film or a GST film is formed, such that a first film is formed on the metal film or the GST film by executing at least one cycle of alternately performing (i) supplying a first processing gas, and (ii) supplying a second processing gas that is not activated by plasma excitation; and performing a formation process to the substrate to which the pre-process has been performed such that a second film is formed on the first film by executing at least one cycle of alternately (i) supplying the first processing gas, and (ii) supplying the second processing gas that is activated by plasma excitation.Type: GrantFiled: March 25, 2015Date of Patent: March 14, 2017Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Masayuki Asai, Koichi Honda, Mamoru Umemoto, Kazuyuki Okuda
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Patent number: 9545736Abstract: A mold and die metallic material, an air-permeable member for mold and die use, and a method for making the same are provided. The mold and die metallic material is made by forming a mixed material containing stainless steel fibers with an equivalent diameter of 30-300 ?m and a length of 0.4-5.0 mm, and stainless steel powder, heat sintering a green body of the mixed material, and heating the sintered body thus obtained in a nitrogen atmosphere and nitrided; wherein average open pore diameter thereof is 3-50 ?m.Type: GrantFiled: February 13, 2012Date of Patent: January 17, 2017Assignee: SINTOKOGIO, LTD.Inventors: Masayuki Asai, Mineo Suzuki, Tetsu Yabuno
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Patent number: 9502233Abstract: In order to extend the cycle of gas cleaning for a film-forming device, a method for manufacturing a semiconductor device includes: a substrate carry-in process for carrying a substrate into a processing chamber; a film forming process for laminating at least two types of films on the substrate in the processing chamber; a substrate carry-out process for carrying the film laminated substrate out from the processing chamber; an etching process for supplying an etching gas into the processing chamber while the substrate is not in the processing chamber after the substrate carry-out process. The etching process includes a first cleaning process for supplying a fluorine-containing gas activated by plasma excitation into the processing chamber as an etching gas; and a second cleaning process for supplying a fluorine-containing gas activated by heat into the processing chamber as an etching gas.Type: GrantFiled: March 22, 2013Date of Patent: November 22, 2016Assignee: HITACHI KOKUSAI ELECTRIC, INC.Inventors: Atsushi Sano, Masayuki Asai, Masahiro Yonebayashi
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Patent number: 9175395Abstract: Disclosed is a substrate processing apparatus including: a processing chamber; plural buffer chambers; a first processing gas supply system that supplies a first processing gas to the processing chamber; a second processing gas supply system that supplies a second processing gas to the buffer chambers; a RF power source; plasma-generating electrodes in the buffer chambers; a heating system; and a controller that controls the first and second processing gas supply systems, the power source, and the heating system to expose the substrate having a metal film thereon to the first processing gas, and the second processing gas that is activated in the plural buffer chambers with an application of RF power to the electrodes and that is supplied from the buffer chambers to the processing chamber to form a film on the metal film while heating the substrate to a self-decomposition temperature of the first processing gas or lower.Type: GrantFiled: September 13, 2011Date of Patent: November 3, 2015Assignee: HITACHI KOKUSAI ELECTRIC INC.Inventors: Masayuki Asai, Koichi Honda, Mamoru Umemoto, Kazuyuki Okuda
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Patent number: 9145606Abstract: A method of manufacturing a semiconductor device includes forming a film on a substrate in a process chamber, and removing a deposit from at least a portion of an inside of the process chamber after forming the film, wherein removing the deposit includes performing a cycle a predetermined number of times, the cycle including a first process of supplying a first gas for etching the deposit into the process chamber and a second process of supplying a second gas into the process chamber so as to increase a pressure in the process chamber, the second gas being incapable of etching a member constituting the process chamber or having an etchability against the member lower than that of the first gas.Type: GrantFiled: October 12, 2012Date of Patent: September 29, 2015Assignee: Hitachi Kokusai Electric Inc.Inventor: Masayuki Asai
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Publication number: 20150197854Abstract: Disclosed is a method of manufacturing a semiconductor device including: performing a pre-process to a substrate, on a surface of which a metal film or a GST film is formed, such that a first film is formed on the metal film or the GST film by executing at least one cycle of alternately performing (i) supplying a first processing gas, and (ii) supplying a second processing gas that is not activated by plasma excitation; and performing a formation process to the substrate to which the pre-process has been performed such that a second film is formed on the first film by executing at least one cycle of alternately (i) supplying the first processing gas, and (ii) supplying the second processing gas that is activated by plasma excitation.Type: ApplicationFiled: March 25, 2015Publication date: July 16, 2015Inventors: Masayuki ASAI, Koichi HONDA, Mamoru UMEMOTO, Kazuyuki OKUDA
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Publication number: 20150197855Abstract: Disclosed is a method of manufacturing a semiconductor device including: performing a pre-process to a metal film or a GST film by supplying a first processing gas to a substrate, on a surface of which the metal film or the GST film is formed, without supplying a second processing gas; and performing a formation process to the substrate to which the pre-process has been performed such that a film is formed on the metal film or the GST film by executing at least one cycle of alternately (i) supplying the first processing gas, and (ii) supplying the second processing gas that is activated by plasma excitation.Type: ApplicationFiled: March 25, 2015Publication date: July 16, 2015Inventors: Masayuki ASAI, Koichi HONDA, Mamoru UMEMOTO, Kazuyuki OKUDA
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Publication number: 20150099373Abstract: In order to extend the cycle of gas cleaning for a film-forming device, a method for manufacturing a semiconductor device includes: a substrate carry-in process for carrying a substrate into a processing chamber; a film forming process for laminating at least two types of films on the substrate in the processing chamber; a substrate carry-out process for carrying the film laminated substrate out from the processing chamber; an etching process for supplying an etching gas into the processing chamber while the substrate is not in the processing chamber after the substrate carry-out process. The etching process includes a first cleaning process for supplying a fluorine-containing gas activated by plasma excitation into the processing chamber as an etching gas; and a second cleaning process for supplying a fluorine-containing gas activated by heat into the processing chamber as an etching gas.Type: ApplicationFiled: March 22, 2013Publication date: April 9, 2015Applicant: HITACHI KOKUSAI ELECTRIC INC.Inventors: Atsushi Sano, Masayuki Asai, Masahiro Yonebayashi
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Publication number: 20130313405Abstract: A mold and die metallic material, an air-permeable member for mold and die use, and a method for making the same are provided. The mold and die metallic material is made by forming a mixed material containing stainless steel fibers with an equivalent diameter of 30-300 ?m and a length of 0.4-5.0 mm, and stainless steel powder, heat sintering a green body of the mixed material, and heating the sintered body thus obtained in a nitrogen atmosphere and nitrided; wherein average open pore diameter thereof is 3-50 ?m.Type: ApplicationFiled: February 13, 2012Publication date: November 28, 2013Applicant: SHINTOKOGIO, LTD.Inventors: Masayuki Asai, Mineo Suzuki, Tetsu Yabuno
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Patent number: 8535479Abstract: Provided is a substrate processing apparatus including: a processing chamber for processing a substrate; a material supply unit for supplying a Si material, an oxidation material and a catalyst into the processing chamber; a heating unit for heating the substrate; and a controller for controlling at least the material supply unit and the heating unit, wherein the controller is configured to control the heating unit to heat the substrate with a first photoresist pattern formed thereon at a processing temperature lower than a deformation temperature of a first photoresist constituting the first photoresist pattern, and to control the material supply unit to alternately supply the silicon-containing material and the catalyst, and alternately supply the oxidation material and the catalyst into the processing chamber in a repeated manner to form on the substrate a thin film having a thickness equal to 5% of one half pitch of the first photoresist pattern.Type: GrantFiled: December 6, 2011Date of Patent: September 17, 2013Assignee: Hitachi Kokusai Electric Inc.Inventors: Norikazu Mizuno, Kenji Kanayama, Kazuyuki Okuda, Yoshiro Hirose, Masayuki Asai
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Patent number: 8227346Abstract: Disclosed is a producing method of a semiconductor device comprising a first step of supplying a first reactant to a substrate to cause a ligand-exchange reaction between a ligand of the first reactant and a ligand as a reactive site existing on a surface of the substrate, a second step of removing a surplus of the first reactant, a third step of supplying a second reactant to the substrate to cause a ligand-exchange reaction to change the ligand after the exchange in the first step into a reactive site, a fourth step of removing a surplus of the second reactant, and a fifth step of supplying a plasma-excited third reactant to the substrate to cause a ligand-exchange reaction to exchange a ligand which has not been exchange-reacted into the reactive site in the third step into the reactive site, wherein the first to fifth steps are repeated predetermined times.Type: GrantFiled: November 29, 2011Date of Patent: July 24, 2012Assignee: Hitachi Kokusai Electric Inc.Inventors: Hironobu Miya, Kazuyuki Toyoda, Norikazu Mizuno, Taketoshi Sato, Masanori Sakai, Masayuki Asai, Kazuyuki Okuda, Hideki Horita
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Patent number: 8168549Abstract: There are provided a method of manufacturing a semiconductor device and a substrate processing apparatus by which the quality of a silicon nitride film can be improved. The method comprises: (a) supplying a silicon-containing gas into a process chamber accommodating a substrate in a heated state; (b) switching between an exhaust stop state and an exhaust operation state at least two times while a nitrogen-containing gas is supplied into the process chamber so as to vary an inside pressure of the process chamber such that a maximum inside pressure of the process chamber is at least twenty times higher than a minimum inside pressure of the process chamber. The steps (a) and (b) are alternately repeated to form a silicon nitride film on the substrate.Type: GrantFiled: September 13, 2010Date of Patent: May 1, 2012Assignee: Hitachi Kokusai Electric, Inc.Inventor: Masayuki Asai