Patents by Inventor Kazuhide Hasebe
Kazuhide Hasebe 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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Patent number: 12359308Abstract: A film forming method is provided. In the film forming method, a mask is prepared based on a measurement result of a surface state of a substrate. The mask is transferred into a process chamber and the substrate is transferred into the process chamber. Then, a film is formed on a back surface of the substrate while the mask is disposed onto the back surface of the substrate.Type: GrantFiled: October 30, 2019Date of Patent: July 15, 2025Assignee: Tokyo Electron LimitedInventors: Yusuke Suzuki, Tsuyoshi Moriya, Kazuhide Hasebe, Atsushi Endo, Satoshi Tanaka
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Patent number: 12288671Abstract: 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: November 30, 2023Date of Patent: April 29, 2025Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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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: 11404271Abstract: 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: November 28, 2018Date of Patent: August 2, 2022Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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Patent number: 11404272Abstract: 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: December 11, 2018Date of Patent: August 2, 2022Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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Patent number: 10879066Abstract: 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: October 11, 2018Date of Patent: December 29, 2020Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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Patent number: 10822714Abstract: A method of growing a crystal in a recess in a substrate on which an insulating film having the recess is formed, includes: forming a first film on the insulating film at a thickness as not to completely fill the recess; etching the first film by an etching gas to remain the first film only in a bottom portion of the recess; annealing the substrate such that the first film in the bottom portion is modified into a crystalline layer; forming a second film on the insulating film and a surface of the crystalline layer at a thickness as not to completely fill the recess; annealing the substrate such that the second film is crystallized from the bottom portion through a solid phase epitaxial growth to form an epitaxial crystal layer; and etching and removing the second film remaining on the substrate by an etching gas.Type: GrantFiled: March 6, 2017Date of Patent: November 3, 2020Assignee: TOKYO ELECTRON LIMITEDInventors: Yoichiro Chiba, Daisuke Suzuki, Kazuhide Hasebe
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Patent number: 10191378Abstract: 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: February 23, 2017Date of Patent: January 29, 2019Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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Patent number: 10176992Abstract: 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: March 22, 2013Date of Patent: January 8, 2019Assignee: Tokyo Electron LimitedInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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Patent number: 10141187Abstract: 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: September 25, 2017Date of Patent: November 27, 2018Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuhide Hasebe, Shigeru Nakajima, Jun Ogawa, Hiroki Murakami
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Patent number: 9970110Abstract: A plasma processing apparatus includes a plasma generation chamber in which plasma active species are generated, a process chamber configured to accommodate processing target objects stacked in a vertical direction, the plasma active species generated in the plasma generation chamber being supplied into the process chamber, a plasma source gas supply pipe disposed inside the plasma generation chamber and extending in the vertical direction, a plasma source gas being introduced from one end of the plasma source gas supply pipe and discharged through gas discharge holes formed in the plasma source gas supply pipe in the vertical direction, and a pair of plasma electrodes, arranged to face each other, configured to apply an electric field to the plasma source gas discharged into the plasma generation chamber. A size of a discharge area interposed between the pair of plasma electrodes is varied in the vertical direction.Type: GrantFiled: October 20, 2014Date of Patent: May 15, 2018Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuhide Hasebe, Jun Ogawa, Akira Shimizu
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Patent number: 9920422Abstract: Provided is a method of forming a silicon nitride film on a surface to be processed of a target object, which includes: repeating a first process a first predetermined number of times, the process including supplying a silicon source gas containing silicon toward the surface to be processed and supplying a decomposition accelerating gas containing a material for accelerating decomposition of the silicon source gas toward the surface to be processed; performing a second process of supplying a nitriding gas containing nitrogen toward the surface to be processed a second predetermine number of times; and performing one cycle a third predetermined number of times, the one cycle being a sequence including the repetition of the first process and the performance of the second process to form the silicon nitride film on the surface to be processed.Type: GrantFiled: December 30, 2015Date of Patent: March 20, 2018Assignee: TOKYO ELECTRON LIMITEDInventors: Akinobu Kakimoto, Kazuhide Hasebe
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Patent number: 9865457Abstract: There is provided a method of forming a nitride film, including: repeating a cycle including an adsorption process of adsorbing a film forming precursor gas onto a substrate having a surface in which a fine recess is formed, the film forming precursor gas containing an element and chlorine constituting a nitride film to be formed; and a nitriding process of nitriding the adsorbed film forming precursor gas with nitriding active species, to form the nitride film in the fine recess. The nitriding process includes: generating NH* active species and N* active species as a nitriding active species; and controlling concentrations of the NH* active species and the N* active species to vary an area where the film forming precursor gas is adsorbed in the fine recess.Type: GrantFiled: November 2, 2016Date of Patent: January 9, 2018Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuhide Hasebe, Akira Shimizu
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Patent number: 9758865Abstract: The present disclosure provides a silicon film forming method for forming a silicon film on a workpiece having a processed surface, including: forming a seed layer by supplying a high-order aminosilane-based gas containing two or more silicon atoms in a molecular formula onto the processed surface and by having silicon adsorbed onto the processed surface; and forming a silicon film by supplying a silane-based gas not containing an amino group onto the seed layer and by depositing silicon onto the seed layer, wherein, when forming a seed layer, a process temperature is set within a range of 350 degrees C. or lower and a room temperature or higher.Type: GrantFiled: July 30, 2014Date of Patent: September 12, 2017Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuhide Hasebe, Kazuya Takahashi, Katsuhiko Komori, Yoshikazu Furusawa, Mitsuhiro Okada, Hiroyuki Hayashi, Akinobu Kakimoto
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Patent number: 9613838Abstract: A batch-type vertical substrate processing apparatus includes a processing chamber into which a substrate holder configured to stack and hold a plurality of target substrates in a height direction is inserted; and a plurality of flanges formed to protrude from an inner wall of the processing chamber toward an internal space of the processing chamber along a planar direction and configured to divide the interior of the processing chamber into a plurality of processing subspaces along the height direction, wherein the flanges include insertion holes through which the substrate holder is inserted, and diameters of the insertion holes are small at an upper side of the processing chamber and become gradually larger toward a lower side of the processing chamber.Type: GrantFiled: March 21, 2014Date of Patent: April 4, 2017Assignee: TOKYO ELECTRON LIMITEDInventors: Mitsuhiro Okada, Kazuhide Hasebe
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Patent number: 9353442Abstract: Provided is an apparatus for forming a silicon-containing thin film, the apparatus including a controller which is configured to control a process gas supplying mechanism, a heating device, and an exhauster to perform: forming a first seed layer on a base by adsorbing at least silicon included in an aminosilane-based gas on the base, using the aminosilane-based gas; forming a second seed layer on the first seed layer by depositing at least silicon included in a higher-order silane-based gas having an order that is equal to or higher than disilane, using the higher-order silane-based gas having an order that is equal to or higher than the disilane, wherein the first seed layer and the second seed layer form a dual seed layer; and forming the silicon-containing thin film on the dual seed layer.Type: GrantFiled: December 19, 2014Date of Patent: May 31, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Mitsuhiro Okada, Akinobu Kakimoto, Kazuhide Hasebe
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Patent number: 9343292Abstract: Provided is a method of manufacturing a stacked semiconductor device, which includes forming a stacked film on a semiconductor substrate, the stacked film including a plurality of silicon oxide films and a plurality of silicon nitride films, which are alternately arranged on top of each other, and the stacked film being obtained by repeatedly performing a series of operations of forming the silicon oxide film on the semiconductor substrate using one of triethoxysilane, octamethylcyclotetrasiloxane, hexamethyldisilazane and diethylsilane gases, and forming the silicon nitride film on the formed silicon oxide film; etching the silicon nitride films in the stacked film; removing carbons contained in the silicon oxide films, which are not removed in the etching, to reduce a concentration of the carbons; and forming electrodes in regions where the silicon nitride films are etched in the etching.Type: GrantFiled: March 20, 2014Date of Patent: May 17, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuhide Hasebe, Tomoyuki Obu, Masaki Kurokawa
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Patent number: 9263250Abstract: Provided is a method of forming a silicon nitride film on a surface to be processed of a target object, which includes: repeating a first process a first predetermined number of times, the process including supplying a silicon source gas containing silicon toward the surface to be processed and supplying a decomposition accelerating gas containing a material for accelerating decomposition of the silicon source gas toward the surface to be processed; performing a second process of supplying a nitriding gas containing nitrogen toward the surface to be processed a second predetermine number of times; and performing one cycle a third predetermined number of times, the one cycle being a sequence including the repetition of the first process and the performance of the second process to form the silicon nitride film on the surface to be processed.Type: GrantFiled: October 6, 2014Date of Patent: February 16, 2016Assignee: TOKYO ELECTRON LIMITEDInventors: Akinobu Kakimoto, Kazuhide Hasebe
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Patent number: 9230799Abstract: A method for fabricating a semiconductor device including GaN (gallium nitride) that composes a semiconductor layer and includes forming a gate insulating film, in which at least one film selected from the group of a SiO2 film and an Al2O3 film is formed on a nitride layer containing GaN by using microwave plasma and the formed film is used as at least a part of the gate insulating film.Type: GrantFiled: January 23, 2012Date of Patent: January 5, 2016Assignees: TOHOKU UNIVERSITY, Fuji Electric Co., Ltd., TOKYO ELECTRON LIMITEDInventors: Akinobu Teramoto, Hiroshi Kambayashi, Hirokazu Ueda, Yuichiro Morozumi, Katsushige Harada, Kazuhide Hasebe, Tadahiro Ohmi
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Patent number: 9190271Abstract: A thin film formation method to form an amorphous silicon film containing an impurity on a surface of an object to be processed in a process chamber that allows vacuum exhaust includes supplying a silane-based gas composed of silicon and hydrogen into the process chamber in a state that the silane-based gas is adsorbed onto the surface of the object without supplying an impurity-containing gas, supplying the impurity-containing gas into the process chamber to form the amorphous silicon film containing the impurity without supplying the silane-based gas, and performing the supplying of the silane-based gas and the supplying of the impurity-containing gas alternately and repeatedly such that the impurity reacts with the silane-based gas.Type: GrantFiled: February 28, 2014Date of Patent: November 17, 2015Assignee: TOKYO ELECTRON LIMITEDInventors: Kazuhide Hasebe, Akinobu Kakimoto