Patents by Inventor Koichi Takatsuki

Koichi Takatsuki 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).

  • Publication number: 20220301882
    Abstract: There is provided a method of performing a surface processing on a substrate having a metal layer formed on a bottom portion of a recess formed in an insulating film, the method including: supplying a halogen-containing gas into a processing chamber in which the substrate is loaded; and removing a metal oxide from the bottom portion of the recess using the halogen-containing gas.
    Type: Application
    Filed: June 8, 2022
    Publication date: September 22, 2022
    Inventors: Koichi Takatsuki, Tadahiro Ishizaka, Mikio Suzuki, Toshio Hasegawa
  • Patent number: 11387112
    Abstract: There is provided a method of performing a surface processing on a substrate having a metal layer formed on a bottom portion of a recess formed in an insulating film, the method including: supplying a halogen-containing gas into a processing chamber in which the substrate is loaded; and removing a metal oxide from the bottom portion of the recess using the halogen-containing gas.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: July 12, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Koichi Takatsuki, Tadahiro Ishizaka, Mikio Suzuki, Toshio Hasegawa
  • Publication number: 20200111675
    Abstract: There is provided a method of performing a surface processing on a substrate having a metal layer formed on a bottom portion of a recess formed in an insulating film, the method including: supplying a halogen-containing gas into a processing chamber in which the substrate is loaded; and removing a metal oxide from the bottom portion of the recess using the halogen-containing gas.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 9, 2020
    Inventors: Koichi TAKATSUKI, Tadahiro ISHIZAKA, Mikio SUZUKI, Toshio HASEGAWA
  • Patent number: 10309005
    Abstract: A deposition device according to one embodiment includes a processing container. A mounting table is installed inside the processing container, and a metal target is installed above the mounting table. Further, a head is configured to inject an oxidizing gas toward the mounting table. This head is configured to move between a first region that is defined between the metal target and a mounting region where a target object is mounted on the mounting table and a second region spaced apart from a space defined between the metal target and the mounting region.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: June 4, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Yasuhiko Kojima, Hiroshi Sone, Atsushi Gomi, Kanto Nakamura, Toru Kitada, Yasunobu Suzuki, Yusuke Suzuki, Koichi Takatsuki, Tatsuo Hirasawa, Keisuke Sato, Chiaki Yasumuro, Atsushi Shimada
  • Publication number: 20160251746
    Abstract: A deposition device according to one embodiment includes a processing container. A mounting table is installed inside the processing container, and a metal target is installed above the mounting table. Further, a head is configured to inject an oxidizing gas toward the mounting table. This head is configured to move between a first region that is defined between the metal target and a mounting region where a target object is mounted on the mounting table and a second region spaced apart from a space defined between the metal target and the mounting region.
    Type: Application
    Filed: August 28, 2014
    Publication date: September 1, 2016
    Inventors: Yasuhiko KOJIMA, Hiroshi SONE, Atsushi GOMI, Kanto NAKAMURA, Toru KITADA, Yasunobu SUZUKI, Yusuke SUZUKI, Koichi TAKATSUKI, Tatsuo HIRASAWA, Keisuke SATO, Chiaki YASUMURO, Atsushi SHIMADA
  • Patent number: 8394231
    Abstract: That surface of an electrode plate 20 which is opposite to a susceptor 10 has a projection shape. The electrode plate 20 is fitted in an opening 26a of shield ring 26 at a projection 20a. At this time, the thickness of the projection 20a is approximately the same as the thickness of the shield ring 26. Accordingly, the electrode plate 20 and the shield ring 26 form substantially the same plane. The major surface of the projection 20a has a diameter 1.2 to 1.5 times the diameter of a wafer W. The electrode plate 20 is formed of, for example, SiC.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: March 12, 2013
    Assignee: Tokyo Electron Limited
    Inventors: Koichi Takatsuki, Hikaru Yoshitaka, Shigeo Ashigaki, Yoichi Inoue, Takashi Akahori, Shuuichi Ishizuka, Syoichi Abe, Takashi Suzuki, Kohei Kawamura, Hidenori Miyoshi, Gishi Chung, Yasuhiro Oshima, Hiroyuki Takahashi
  • Publication number: 20130017690
    Abstract: In a plasma nitriding method, a processing gas containing nitrogen gas and rare gas is introduced into a processing chamber of a plasma processing apparatus by setting a flow rate thereof as a total flow rate [mL/min(sccm)] of the processing gas per 1 L volume of the processing chamber within a range from 1.5 (mL/min)/L to 13 (mL/min)/L. Further, a nitriding process is performed on oxygen-containing films of target objects to be processed by generating a nitrogen-containing plasma in the processing chamber and while exchanging the target objects.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 17, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Koichi Takatsuki, Kazuyoshi Yamazaki, Hideyuki Noguchi, Daisuke Tamura, Tomohiro Saito
  • Patent number: 8183165
    Abstract: According to the present invention,when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to from an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently,it is possible to improve quality of the oxynitride film, resulting in a reduced leadage current, an improved operating speed, and improved NBTI resistance.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: May 22, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Seiji Matsuyama, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Patent number: 8076252
    Abstract: In a substrate processing method, a substrate to be processed is mounted on a mounting table in a processing chamber of a substrate processing apparatus, and while heating the substrate by a heating unit through the mounting table to a processing temperature of 700° C. or higher, the substrate is processed. The substrate to be processed is loaded into the processing chamber, a first preliminary heating is performed until the substrate reaches a prescribed temperature while being mounted on the mounting table. Then, substrate supporting pins of the mounting table are elevated, and a second preliminary heating is performed in a state where the substrate is held on the substrate supporting pins. Then, the substrate supporting pins are moved down to mount the substrate on the mounting table and a process such as plasma oxidation is performed thereon.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: December 13, 2011
    Assignee: Tokyo Electron Limited
    Inventor: Koichi Takatsuki
  • Publication number: 20110124202
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Application
    Filed: February 1, 2011
    Publication date: May 26, 2011
    Applicant: Tokyo Electron Limited
    Inventors: Seiji MATSUYAMA, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Patent number: 7897518
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: March 1, 2011
    Assignee: Tokyo Electron Limited
    Inventors: Seiji Matsuyama, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Publication number: 20100196627
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Application
    Filed: April 9, 2010
    Publication date: August 5, 2010
    Applicant: Tokyo Electron Limited
    Inventors: Seiji MATSUYAMA, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Publication number: 20100144159
    Abstract: In a substrate processing method, a substrate to be processed is mounted on a mounting table in a processing chamber of a substrate processing apparatus, and while heating the substrate by a heating unit through the mounting table to a processing temperature of 700° C. or higher, the substrate is processed. The substrate to be processed is loaded into the processing chamber, a first preliminary heating is performed until the substrate reaches a prescribed temperature while being mounted on the mounting table. Then, substrate supporting pins of the mounting table are elevated, and a second preliminary heating is performed in a state where the substrate is held on the substrate supporting pins. Then, the substrate supporting pins are moved down to mount the substrate on the mounting table and a process such as plasma oxidation is performed thereon.
    Type: Application
    Filed: July 28, 2006
    Publication date: June 10, 2010
    Applicant: TOKYO ELECTRON LIMITED
    Inventor: Koichi Takatsuki
  • Patent number: 7723241
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: May 25, 2010
    Assignee: Tokyo Electron Limited
    Inventors: Seiji Matsuyama, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Publication number: 20070131171
    Abstract: That surface of an electrode plate 20 which is opposite to a susceptor 10 has a projection shape. The electrode plate 20 is fitted in an opening 26a of shield ring 26 at a projection 20a. At this time, die thickness of the projection 20a is approximately the same as the thickness of the shield ring 26. Accordingly, the electrode plate 20 and the shield ring 26 form substantially the same plane. The major surface of the projection 20a has a diameter 1.2 to 1.5 times the diameter of a wafer W. The electrode plate 20 is formed of, for example, SiC.
    Type: Application
    Filed: January 23, 2007
    Publication date: June 14, 2007
    Applicant: Tokyo Electron Limited
    Inventors: Koichi Takatsuki, Hikaru Yoshitaka, Shigeo Ashigaki, Yoichi Inoue, Takashi Akahori, Shuuichi Ishizuka, Syoichi Abe, Takashi Suzuki, Kohei Kawamura, Hidenori Miyoshi, Gishi Chung, Yasuhiro Oshima, Hiroyuki Takahashi
  • Publication number: 20070059944
    Abstract: According to the present invention, when a nitridation process by plasma generated by a microwave is applied to a substrate with an oxide film having been formed thereon to form an oxynitride film, the microwave is intermittently supplied. By the intermittent supply of the microwave, ion bombardment is reduced in accordance with a decrease in electron temperature, and a diffusion velocity of nitride species in the oxide film lowers, which as a result makes it possible to prevent nitrogen from concentrating in a substrate-side interface of an oxynitride film to increase the nitrogen concentration therein. Consequently, it is possible to improve quality of the oxynitride film, resulting in a reduced leakage current, an improved operating speed, and improved NBTI resistance.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 15, 2007
    Applicant: Tokyo Electron Limited
    Inventors: Seiji Matsuyama, Toshio Nakanishi, Shigenori Ozaki, Hikaru Adachi, Koichi Takatsuki, Yoshihiro Sato
  • Publication number: 20040127033
    Abstract: That surface of an electrode plate 20 which is opposite to a susceptor 10 has a projection shape. The electrode plate 20 is fitted in an opening 26a of shield ring 26 at a projection 20a. At this time, the thickness of the projection 20a is approximately the same as the thickness of the shield ring 26. Accordingly, the electrode plate 20 and the shield ring 26 form substantially the same plane. The major surface of the projection 20a has a diameter 1.2 to 1.5 times the diameter of a wafer W. The electrode plate 20 is formed of, for example, SiC.
    Type: Application
    Filed: January 29, 2004
    Publication date: July 1, 2004
    Inventors: Koichi Takatsuki, Hiraku Yoshitaka, Shigeo Ashigaki, Yoichi Inoue, Takashi Akahori, Shuuichi Ishizuka, Syoichi Abe, Takashi Suzuki, Kohei Kawamura, Hidenori Miyoshi, Gishi Chung, Yasuhiro Oshima, Hiroyuki Takahashi