Patents by Inventor Hiroki Matsumaru
Hiroki Matsumaru 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: 8142609Abstract: A plasma processing apparatus including a mounting table that includes a mounting table body having a temperature adjusted to be a predetermined level, and an electrostatic chuck disposed on an upper portion of the mounting table body, joined thereto with an acrylic adhesive having a thickness of 60 ?m or more, to adsorb the substrate thereon. The apparatus further including first and second heat transfer gas diffusion regions formed at a center and a circumferential edge, respectively, of an upper surface of the electrostatic chuck, and first and second heat transfer gas supply units to supply heat transfer gas to the first and second heat transfer gas diffusion regions, respectively. A volume ratio of the second heat transfer gas diffusion region to the first heat transfer gas diffusion region is equal to or less than 0.Type: GrantFiled: March 26, 2008Date of Patent: March 27, 2012Assignee: Tokyo Electron LimitedInventors: Syuichi Takahashi, Hiroki Matsumaru, Nobutaka Nakao, Kenji Komatsu
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Publication number: 20110162802Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.Type: ApplicationFiled: March 16, 2011Publication date: July 7, 2011Inventors: Katsuya OKUMURA, Shinji HIMORI, Kazuya NAGASEKI, Hiroki MATSUMARU, Shoichiro MATSUYAMA, Toshiki TAKAHASHI
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Patent number: 7922862Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.Type: GrantFiled: July 20, 2009Date of Patent: April 12, 2011Assignees: Octec Inc., Tokyo Electron LimitedInventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi
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Patent number: 7767055Abstract: A capacitive coupling plasma processing apparatus includes a process chamber configured to have a vacuum atmosphere, and a process gas supply section configured to supply a process gas into the chamber. In the chamber, a first electrode and a second electrode are disposed opposite each other. An RF power supply is disposed to supply an RF power to the first or second electrode to form an RF electric field within a plasma generation region between the first and second electrodes, so as to turn the process gas into plasma. The target substrate is supported by a support member between the first and second electrodes such that a process target surface thereof faces the second electrode. A conductive functional surface is disposed in a surrounding region around the plasma generation region and grounded to be coupled with the plasma in a sense of DC to expand the plasma.Type: GrantFiled: December 2, 2005Date of Patent: August 3, 2010Assignees: Tokyo Electron Limited, Kabushiki Kaisha ToshibaInventors: Shinji Himori, Noriaki Imai, Katsumi Horiguchi, Takaaki Nezu, Shoichiro Matsuyama, Hiroki Matsumaru, Toshihiro Hayami, Kazuya Nagaseki, Itsuko Sakai, Tokuhisa Ohiwa, Yoshikazu Sugiyasu
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Publication number: 20090285998Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.Type: ApplicationFiled: July 20, 2009Publication date: November 19, 2009Applicants: Octec Inc., TOKYO ELECTRON LIMITEDInventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi
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Patent number: 7585386Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.Type: GrantFiled: August 3, 2005Date of Patent: September 8, 2009Assignees: Octec Inc., Tokyo Electron LimitedInventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi
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Publication number: 20080308230Abstract: A plasma processing apparatus 1, in which a substrate W is mounted on a mounting table 11 in a processing chamber 10 and processing gas supplied in the processing chamber 10 is made into plasma to a perform plasma treatment on the substrate W, wherein the mounting table 11 has a mounting table body 12 having a temperature adjusted to be a predetermined level, and an electrostatic chuck 13 disposed on an upper portion of the mounting table body 12 and adsorbing the substrate W thereon; a first heat transfer gas diffusion region 47 is formed at a center of an upper surface of the electrostatic chuck 13 and a second heat transfer gas diffusion region 48 is formed at a circumferential edge of the upper surface of the electrostatic chuck 13; a first heat transfer gas supply unit 51 supplying heat transfer gas to the first heat transfer gas diffusion region 47 and a second heat transfer gas supply unit 52 supplying heat transfer gas to the second heat transfer gas diffusion region 48 are included; and a volume ratiType: ApplicationFiled: March 26, 2008Publication date: December 18, 2008Applicant: TOKYO ELECTRON LIMITEDInventors: Syuichi TAKAHASHI, Hiroki Matsumaru, Nobutaka Nakao, Kenji Komatsu
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Publication number: 20080242086Abstract: A plasma processing method, for performing a plasma process on a target substrate by generating a plasma between an upper electrode and a lower electrode facing each other by means of applying a radio frequency power therebetween, includes applying a DC voltage of a positive or negative polarity to an inner electrode of an electrostatic chuck on the lower electrode to attract and hold the target substrate thereon; and changing the positive or negative polarity of the DC voltage applied to the inner electrode of the electrostatic chuck to an opposite polarity thereto between a time when the application of the radio frequency power from the radio frequency power supply is started to perform the plasma process of the target substrate and a time when the plasma process is completed.Type: ApplicationFiled: March 28, 2008Publication date: October 2, 2008Applicant: TOKYO ELECTRON LIMITEDInventors: Hiroki MATSUMARU, Nobutaka Nakao, Kenji Komatsu, Syuichi Takahashi
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Publication number: 20060118044Abstract: A capacitive coupling plasma processing apparatus includes a process chamber configured to have a vacuum atmosphere, and a process gas supply section configured to supply a process gas into the chamber. In the chamber, a first electrode and a second electrode are disposed opposite each other. An RF power supply is disposed to supply an RF power to the first or second electrode to form an RF electric field within a plasma generation region between the first and second electrodes, so as to turn the process gas into plasma. The target substrate is supported by a support member between the first and second electrodes such that a process target surface thereof faces the second electrode. A conductive functional surface is disposed in a surrounding region around the plasma generation region and grounded to be coupled with the plasma in a sense of DC to expand the plasma.Type: ApplicationFiled: December 2, 2005Publication date: June 8, 2006Inventors: Shinji Himori, Noriaki Imai, Katsumi Horiguchi, Takaaki Nezu, Shoichiro Matsuyama, Hiroki Matsumaru, Toshihiro Hayami, Kazuya Nagaseki, Itsuko Sakai, Tokuhisa Ohiwa, Yoshikazu Sugiyasu
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Publication number: 20050276928Abstract: A plasma processing apparatus for performing a plasma process on a target substrate includes a process container configured to accommodate the target substrate and to reduce pressure therein. A first electrode is disposed within the process container. A supply system is configured to supply a process gas into the process container. An electric field formation system is configured to form an RF electric field within the process container so as to generate plasma of the process gas. A number of protrusions are discretely disposed on a main surface of the first electrode and protrude toward a space where the plasma is generated.Type: ApplicationFiled: August 3, 2005Publication date: December 15, 2005Applicants: Octec Inc., TOKYO ELECTRON LIMITEDInventors: Katsuya Okumura, Shinji Himori, Kazuya Nagaseki, Hiroki Matsumaru, Shoichiro Matsuyama, Toshiki Takahashi