Patents by Inventor Hideo Namatsu
Hideo Namatsu 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: 8568534Abstract: The present invention provides a washing method for a device substrate, capable of sufficiently removing a resist attached to a device substrate, particularly a resist attached to fine pore portions of a pattern having a large aspect ratio. A method for washing a device substrate, which comprises a washing step of removing a resist attached to a device substrate by means of a solvent, wherein the solvent is a composition comprising at least one fluorinated compound selected from the group consisting of a hydrofluoroether, a hydrofluorocarbon and a perfluorocarbon, and a fluorinated alcohol.Type: GrantFiled: November 23, 2011Date of Patent: October 29, 2013Assignee: Asahi Glass Company, LimitedInventors: Hidekazu Okamoto, Hideo Namatsu
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Patent number: 8465596Abstract: Disclosed is a supercritical processing apparatus and a supercritical processing method for suppressing the pattern collapse or the injection of material constituting a processing liquid into a substrate. A processing chamber receives a substrate subjected to a processing with supercritical fluid, and a liquid supply unit supplies a processing liquid including a fluorine compound to the processing chamber. A liquid discharge unit discharges the supercritical fluid from the processing chamber, a pyrolysis ingredient removing unit removes an ingredient facilitating the pyrolysis of a liquid from the processing chamber or from the liquid supplied from the liquid supply unit, and a to heating unit heats the processing liquid including a fluorine compound of hydrofluoro ether or hydrofluoro carbon.Type: GrantFiled: March 3, 2011Date of Patent: June 18, 2013Assignee: Tokyo Electron LimitedInventors: Takayuki Toshima, Mitsuaki Iwashita, Kazuyuki Mitsuoka, Hidekazu Okamoto, Hideo Namatsu
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Patent number: 8143203Abstract: The present invention provides a washing method for a device substrate, capable of sufficiently removing a resist attached to a device substrate, particularly a resist attached to fine pore portions of a pattern having a large aspect ratio. A method for washing a device substrate, which comprises a washing step of removing a resist attached to a device substrate by means of a solvent, wherein the solvent is a composition comprising at least one fluorinated compound selected from the group consisting of a hydrofluoroether, a hydrofluorocarbon and a perfluorocarbon, and a fluorinated alcohol.Type: GrantFiled: September 19, 2008Date of Patent: March 27, 2012Assignee: Asahi Glass Company, LimitedInventors: Hidekazu Okamoto, Hideo Namatsu
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Publication number: 20120067379Abstract: The present invention provides a washing method for a device substrate, capable of sufficiently removing a resist attached to a device substrate, particularly a resist attached to fine pore portions of a pattern having a large aspect ratio. A method for washing a device substrate, which comprises a washing step of removing a resist attached to a device substrate by means of a solvent, wherein the solvent is a composition comprising at least one fluorinated compound selected from the group consisting of a hydrofluoroether, a hydrofluorocarbon and a perfluorocarbon, and a fluorinated alcohol.Type: ApplicationFiled: November 23, 2011Publication date: March 22, 2012Applicants: NTT Advanced Technology Corporation, ASAHI GLASS COMPANY, LIMITEDInventors: Hidekazu Okamoto, Hideo Namatsu
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Patent number: 8026047Abstract: A fine and high-accuracy pattern, which is also excellent in either or both of high sensitivity and etching resistance can be provided. Disclosed is a resist pattern forming method in which a single- or multi-layered film 2 is formed on a substrate 1 and a resist pattern is formed on the film 2 through a lithography technique including exposure and development, the method comprising performing supercritical processing in which the film 2 is brought into contact with a supercritical processing solution 5? in which an organic matter 4 is dissolved before the exposure or development.Type: GrantFiled: January 27, 2006Date of Patent: September 27, 2011Assignees: Nippon Telegraph and Telephone Corporation, Tokyo Ohka Kogyo Co., Ltd.Inventors: Hideo Namatsu, Mitsuru Sato
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Publication number: 20110214694Abstract: Disclosed is a supercritical processing apparatus and a supercritical processing method for suppressing the pattern collapse or the injection of material constituting a processing liquid into a substrate. A processing chamber receives a substrate subjected to a processing with supercritical fluid, and a liquid supply unit supplies a processing liquid including a fluorine compound to the processing chamber. A liquid discharge unit discharges the supercritical fluid from the processing chamber, a pyrolysis ingredient removing unit removes an ingredient facilitating the pyrolysis of a liquid from the processing chamber or from the liquid supplied from the liquid supply unit, and a to heating unit heats the processing liquid including a fluorine compound of hydrofluoro ether or hydrofluoro carbon.Type: ApplicationFiled: March 3, 2011Publication date: September 8, 2011Applicant: TOKYO ELECTRON LIMITEDInventors: Takayuki TOSHIMA, Mitsuaki IWASHITA, Kazuyuki MITSUOKA, Hidekazu OKAMOTO, Hideo NAMATSU
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Patent number: 7977036Abstract: A fine and high-accuracy resist pattern, which is excellent in etching resistance, can be formed. Disclosed is a resist pattern forming method, which includes the steps of developing a resist composition having photosensitivity to a predetermined light source through a lithography technique to form a resist pattern 2 on a substrate 1, and bringing the resist pattern 2 into contact with a supercritical processing solution 5? including a supercritical fluid 3? which contains a crosslinking agent 4.Type: GrantFiled: January 27, 2006Date of Patent: July 12, 2011Assignees: Nippon Telegraph and Telephone Corporation, Tokyo Ohka Kogyo Co., Ltd.Inventors: Hideo Namatsu, Mitsuru Sato
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Publication number: 20110067733Abstract: To provide a cleaning method capable of favorably removing an object to be cleaned having a plasma polymer formed in a plasma etching step employing a fluorinated gas. A cleaning method comprising an immersion step of immersing an object 1 to be cleaned in a cleaning liquid (fluorinated solvent) 3 containing at least a fluorine compound, wherein in the immersion step, the temperature t of the cleaning liquid 3 is at least the lower one of the normal boiling point of the fluorine compound contained in the cleaning liquid 3 at 1 atm and 100° C., and the atmospheric pressure is such a pressure that the fluorine compound is in a liquid state at the temperature t.Type: ApplicationFiled: November 22, 2010Publication date: March 24, 2011Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Hidekazu Okamoto, Hideo Namatsu
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Publication number: 20090029894Abstract: The present invention provides a washing method for a device substrate, capable of sufficiently removing a resist attached to a device substrate, particularly a resist attached to fine pore portions of a pattern having a large aspect ratio. A method for washing a device substrate, which comprises a washing step of removing a resist attached to a device substrate by means of a solvent, wherein the solvent is a composition comprising at least one fluorinated compound selected from the group consisting of a hydrofluoroether, a hydrofluorocarbon and a perfluorocarbon, and a fluorinated alcohol.Type: ApplicationFiled: September 19, 2008Publication date: January 29, 2009Applicants: ASAHI GLASS COMPANY, LIMITED, NTT Advanced Technology CorporationInventors: Hidekazu Okamoto, Hideo Namatsu
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Publication number: 20080124648Abstract: A fine and high-accuracy pattern, which is also excellent in either or both of high sensitivity and etching resistance can be provided. Disclosed is a resist pattern forming method in which a single- or multi-layered film 2 is formed on a substrate 1 and a resist pattern is formed on the film 2 through a lithography technique including exposure and development, the method comprising performing supercritical processing in which the film 2 is brought into contact with a supercritical processing solution 5? in which an organic matter 4 is dissolved before or after the exposure or development.Type: ApplicationFiled: January 27, 2006Publication date: May 29, 2008Applicants: Nippon Telegraph and Telephone Corporation, TOKYO OHKA KOGYO CO., LTD.Inventors: Hideo Namatsu, Mitsuru Sato
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Publication number: 20080118871Abstract: A fine and high-accuracy resist pattern, which is excellent in etching resistance, can be formed. Disclosed is a resist pattern forming method, which includes the steps of developing a resist composition having photosensitivity to a predetermined light source through a lithography technique to form a resist pattern 2 on a substrate 1, and bringing the resist pattern 2 into contact with a supercritical processing solution 5? including a supercritical fluid 3? which contains a crosslinking agent 4.Type: ApplicationFiled: January 27, 2006Publication date: May 22, 2008Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, TOKYO OHKA KOGYO CO., LTD.Inventors: Hideo Namatsu, Mitsuru Sato
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Patent number: 6576066Abstract: According to a supercritical drying method of this invention, a substrate having a pattern is dipped in water and rinsed with water. Then, the substrate is placed in the reaction chamber of a predetermined sealable vessel, and surfactant-added liquid carbon dioxide is introduced into the reaction chamber. The substrate is dipped in surfactant-added liquid carbon dioxide, and liquid carbon dioxide is changed to the supercritical state. After that, supercritical carbon dioxide is gasified.Type: GrantFiled: November 28, 2000Date of Patent: June 10, 2003Assignee: Nippon Telegraph and Telephone CorporationInventor: Hideo Namatsu
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Patent number: 6554507Abstract: In this invention, resist patterns formed by development are dried using a supercritical fluid such that no moisture enters the patterns.Type: GrantFiled: December 20, 2001Date of Patent: April 29, 2003Assignee: Nippon Telegraph and Telephone CorporationInventor: Hideo Namatsu
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Publication number: 20020132192Abstract: In this invention, resist patterns formed by development are dried using a supercritical fluid such that no moisture enters the patterns.Type: ApplicationFiled: December 20, 2001Publication date: September 19, 2002Inventor: Hideo Namatsu
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Patent number: 6358673Abstract: In this invention, resist patterns formed by development are dried using a supercritical fluid such that no moisture enters the patterns.Type: GrantFiled: September 3, 1999Date of Patent: March 19, 2002Assignee: Nippon Telegraph and Telephone CorporationInventor: Hideo Namatsu
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Patent number: 5811872Abstract: A semiconductor device includes an interlevel film constituted by a first dielectrics film containing dangling bonds and a bonded group of Si and hydrogen, and a second dielectrics film formed on the first dielectrics film.Type: GrantFiled: January 31, 1996Date of Patent: September 22, 1998Assignee: Nippon Telegraph and Telephone CorporationInventors: Katsuyuki Machida, Katsumi Murase, Nobuhiro Shimoyama, Toshiaki Tsuchiya, Junichi Takahashi, Kazushige Minegishi, Yasuo Takahashi, Hideo Namatsu, Kazuo Imai
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Patent number: 5512513Abstract: A semiconductor device includes an interlevel film constituted by a first dielectrics film containing dangling bonds and a bonded group of Si and hydrogen, and a second dielectrics film formed on the first dielectrics film.Type: GrantFiled: August 25, 1994Date of Patent: April 30, 1996Assignee: Nippon Telegraph and Telephone CorporationInventors: Katsuyuki Machida, Katsumi Murase, Nobuhiro Shimoyama, Toshiaki Tsuchiya, Junichi Takahashi, Kazushige Minegishi, Yasuo Takahashi, Hideo Namatsu, Kazuo Imai
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Patent number: 5376590Abstract: A semiconductor device includes an interlevel film constituted by a first dielectrics film containing dangling bonds and a bonded group of Si and hydrogen, and a second dielectrics film formed on the first dielectrics film.Type: GrantFiled: January 19, 1993Date of Patent: December 27, 1994Assignee: Nippon Telegraph and Telephone CorporationInventors: Katsuyuki Machida, Katsumi Murase, Nobuhiro Shimoyama, Toshiaki Tsuchiya, Junichi Takahashi, Kazushige Minegishi, Yasuo Takahashi, Hideo Namatsu, Kazuo Imai
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Patent number: 4738916Abstract: An intermediate layer material of a three-layer resist system for use in processing of a semiconductor substrate, comprising an organopolysiloxane. The organopolysiloxane is expressed by a general formula (R.sub.3 SiO.sub.1/2).sub.m.(R.sub.2 SiO).sub.n.(RSiO.sub.3/2).sub.p.(SiO.sub.2).sub.q {where R is independently a hydrocarbon group or an alkoxy group; and m, n, p and q represent composition ratios of respective units and satisfy m+n+p+q=1, 1.gtoreq.m>0, 1.gtoreq.n.gtoreq.0, 1.gtoreq.p.gtoreq.0, 1.gtoreq.q.gtoreq.0 (where p and q are not simultaneously 0), m/p.ltoreq.0.3 (where p.noteq.0), and/or m/q.ltoreq.1 (where q.noteq.0)}.Type: GrantFiled: July 14, 1986Date of Patent: April 19, 1988Assignee: Nippon Telegraph and Telephone Corp.Inventors: Hideo Namatsu, Akira Yoshikawa
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Patent number: 4615782Abstract: An intermediate layer material of a three-layer resist system for use in processing of a semiconductor substrate, comprising an organopolysiloxane. The organopolysiloxane is expressed by a general formula (R.sub.3 SiO.sub.1/2).sub.m.(R.sub.2 SiO).sub.n.(RSiO.sub.3/2).sub.p.(SiO.sub.2).sub.q {where R is independently a hydrocarbon group or an alkoxy group; and m, n, p and q represent composition ratios of respective units and satisfy m+n+p+q=1, 1.gtoreq.m>0, 1.gtoreq.n.gtoreq.0, 1.gtoreq.p.gtoreq.0, 1.gtoreq.q.gtoreq.0 (where p and q are not simultaneously 0), m/p.ltoreq.0.3 (where p.noteq.0), and/or m/q.ltoreq.1 (where q.noteq.0)}.Type: GrantFiled: June 6, 1985Date of Patent: October 7, 1986Assignee: Nippon Telegraph and Telephone CorporationInventors: Hideo Namatsu, Akira Yoshikawa