Patents by Inventor Dai Ishikawa

Dai Ishikawa 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).

  • Patent number: 9754779
    Abstract: A method for fabricating a layer structure in a trench includes: simultaneously forming a dielectric film containing a Si—N bond on an upper surface, and a bottom surface and sidewalls of the trench, wherein a top/bottom portion of the film formed on the upper surface and the bottom surface and a sidewall portion of the film formed on the sidewalls are given different chemical resistance properties by bombardment of a plasma excited by applying voltage between two electrodes between which the substrate is place in parallel to the two electrodes; and substantially removing either one of but not both of the top/bottom portion and the sidewall portion of the film by wet etching which removes the one of the top/bottom portion and the sidewall portion of the film more predominantly than the other according to the different chemical resistance properties.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: September 5, 2017
    Assignee: ASM IP Holding B.V.
    Inventors: Dai Ishikawa, Atsuki Fukazawa
  • Publication number: 20170250068
    Abstract: A method for fabricating a layer structure in a trench includes: simultaneously forming a dielectric film containing a Si—N bond on an upper surface, and a bottom surface and sidewalls of the trench, wherein a top/bottom portion of the film formed on the upper surface and the bottom surface and a sidewall portion of the film formed on the sidewalls are given different chemical resistance properties by bombardment of a plasma excited by applying voltage between two electrodes between which the substrate is place in parallel to the two electrodes; and substantially removing either one of but not both of the top/bottom portion and the sidewall portion of the film by wet etching which removes the one of the top/bottom portion and the sidewall portion of the film more predominantly than the other according to the different chemical resistance properties.
    Type: Application
    Filed: May 11, 2017
    Publication date: August 31, 2017
    Inventors: Dai Ishikawa, Atsuki Fukazawa, Eiichiro Shiba, Shinya Ueda, Taishi Ebisudani, SeungJu Chun, YongMin Yoo, YoonKi Min, SeYong Kim, JongWan Choi
  • Publication number: 20170243734
    Abstract: A method for fabricating a layer structure in a trench includes: simultaneously forming a dielectric film containing a Si—N bond on an upper surface, and a bottom surface and sidewalls of the trench, wherein a top/bottom portion of the film formed on the upper surface and the bottom surface and a sidewall portion of the film formed on the sidewalls are given different chemical resistance properties by bombardment of a plasma excited by applying voltage between two electrodes between which the substrate is place in parallel to the two electrodes; and substantially removing either one of but not both of the top/bottom portion and the sidewall portion of the film by wet etching which removes the one of the top/bottom portion and the sidewall portion of the film more predominantly than the other according to the different chemical resistance properties.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 24, 2017
    Inventors: Dai Ishikawa, Atsuki Fukazawa
  • Publication number: 20170062204
    Abstract: Methods of forming silicon nitride thin films on a substrate in a reaction space under high pressure are provided. The methods can include a plurality of plasma enhanced atomic layer deposition (PEALD) cycles, where at least one PEALD deposition cycle comprises contacting the substrate with a nitrogen plasma at a process pressure of 20 Torr to 500 Torr within the reaction space. In some embodiments the silicon precursor is a silyly halide, such as H2SiI2. In some embodiments the processes allow for the deposition of silicon nitride films having improved properties on three dimensional structures. For example, such silicon nitride films can have a ratio of wet etch rates on the top surfaces to the sidewall of about 1:1 in dilute HF.
    Type: Application
    Filed: August 24, 2015
    Publication date: March 2, 2017
    Inventors: TOSHIYA SUZUKI, VILJAMI J. PORE, SHANG CHEN, RYOKO YAMADA, DAI ISHIKAWA, KUNITOSHI NAMBA
  • Patent number: 9478414
    Abstract: A method is for hydrophobization of a surface of a silicon-containing film by atomic layer deposition (ALD), wherein the surface is subjected to atmospheric exposure. The method includes: (i) providing a substrate with a silicon-containing film formed thereon; and (ii) forming on a surface of the silicon-containing film a hydrophobic atomic layer as a protective layer subjected to atmospheric exposure, by exposing the surface to a silicon-containing treating gas without exciting the gas. The treating gas is capable of being chemisorbed on the surface to form a hydrophobic atomic layer thereon.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: October 25, 2016
    Assignee: ASM IP Holding B.V.
    Inventors: Akiko Kobayashi, Akinori Nakano, Dai Ishikawa, Kiyohiro Matsushita
  • Patent number: 9353441
    Abstract: A pedestal for supporting a substrate includes: a heating plate for heating the substrate; an upper cooling plate for cooling the substrate, installed on the heating plate and provided with an upper fluid path for passing a cooling fluid therethrough; and an lower cooling plate for cooling the substrate, installed under the heating plate and including a lower fluid path for passing a cooling fluid therethrough.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: May 31, 2016
    Assignee: ASM IP Holding B.V.
    Inventors: Hsiao Pei Chung, Hirofumi Arai, Dai Ishikawa
  • Patent number: 9309119
    Abstract: There is provided a producing method of metal fine particles or metal oxide fine particles for producing metal fine particles or metal oxide fine particles by atomizing raw materials by performing processes including an oxidizing process and a reducing process to the raw materials composed of metal or a metal compound.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: April 12, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Yamato Hayashi, Yoshihiro Sekiguchi, Hirotsugu Takizawa, Dai Ishikawa, Tomiya Abe
  • Publication number: 20160093485
    Abstract: A method is for hydrophobization of a surface of a silicon-containing film by atomic layer deposition (ALD), wherein the surface is subjected to atmospheric exposure. The method includes: (i) providing a substrate with a silicon-containing film formed thereon; and (ii) forming on a surface of the silicon-containing film a hydrophobic atomic layer as a protective layer subjected to atmospheric exposure, by exposing the surface to a silicon-containing treating gas without exciting the gas. The treating gas is capable of being chemisorbed on the surface to form a hydrophobic atomic layer thereon.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 31, 2016
    Inventors: Akiko Kobayashi, Akinori Nakano, Dai Ishikawa, Kiyohiro Matsushita
  • Patent number: 9190263
    Abstract: A method for forming a modified low-k SiOCH film on a substrate, includes: providing a low-k SiOCH film formed on a substrate by flowable CVD; exposing the low-k SiOCH film to a gas containing a Si—N bond in its molecule without applying electromagnetic energy to increase Si—O bonds and/or Si—C bonds in the film; and then curing the low-k SiOCH film.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: November 17, 2015
    Assignee: ASM IP Holding B.V.
    Inventors: Dai Ishikawa, Kiyohiro Matsushita, Akinori Nakano, Shintaro Ueda, Hirofumi Arai
  • Publication number: 20150272946
    Abstract: The present invention relates to a prophylactic and/or therapeutic agent for behavioral and psychological symptoms associated with neurodegenerative disease or impulsive symptoms associated with mental disease, which contains 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butoxy]-1H-quinolin-2-one or a salt thereof as an active ingredient.
    Type: Application
    Filed: October 24, 2013
    Publication date: October 1, 2015
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD
    Inventors: Shinji Sato, Kenji Maeda, Dai Ishikawa, Mai Nakamura
  • Publication number: 20150217411
    Abstract: A silver paste composition comprising silver particles having a particle diameter of 0.1 ?m to 20 ?m, and a solvent, wherein the above-described solvent comprises a solvent having a boiling point of 300° C. or more.
    Type: Application
    Filed: August 5, 2013
    Publication date: August 6, 2015
    Inventors: Dai Ishikawa, Hiroshi Matsumoto, Michiko Natori, Hideo Nakako, Toshiaki Tanaka
  • Publication number: 20150137347
    Abstract: An adhesive composition comprising silver particles containing silver atoms and zinc particles containing metallic zinc, wherein the silver atom content is 90 mass % or greater and the zinc atom content is from 0.01 mass % to 0.6 mass %, with respect to the total transition metal atoms in the solid portion of the adhesive composition.
    Type: Application
    Filed: June 14, 2013
    Publication date: May 21, 2015
    Inventors: Hideo Nakako, Toshiaki Tanaka, Michiko Natori, Dai Ishikawa, Hiroshi Matsumoto
  • Patent number: 9029272
    Abstract: A method for forming a gap-fill SiOCH film on a patterned substrate includes: (i) providing a substrate having recessed features on its surface; (ii) filling the recessed features of the substrate with a SiOCH film which is flowable and non-porous; (iii) after completion of step (ii), exposing the SiOCH film to a plasma including a hydrogen plasma; and (iv) curing the plasma-exposed SiOCH film with UV light.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: May 12, 2015
    Assignee: ASM IP Holding B.V.
    Inventors: Akinori Nakano, Shintaro Ueda, Dai Ishikawa, Kiyohiro Matsushita
  • Publication number: 20150118864
    Abstract: A method for forming a gap-fill SiOCH film on a patterned substrate includes: (i) providing a substrate having recessed features on its surface; (ii) filling the recessed features of the substrate with a SiOCH film which is flowable and non-porous; (iii) after completion of step (ii), exposing the SiOCH film to a plasma including a hydrogen plasma; and (iv) curing the plasma-exposed SiOCH film with UV light.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: ASM IP Holding B.V.
    Inventors: Akinori Nakano, Shintaro Ueda, Dai Ishikawa, Kiyohiro Matsushita
  • Publication number: 20150056821
    Abstract: A method for forming a modified low-k SiOCH film on a substrate, includes: providing a low-k SiOCH film formed on a substrate by flowable CVD; exposing the low-k SiOCH film to a gas containing a Si—N bond in its molecule without applying electromagnetic energy to increase Si—O bonds and/or Si—C bonds in the film; and then curing the low-k SiOCH film.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 26, 2015
    Applicant: ASM IP Holding B.V.
    Inventors: Dai Ishikawa, Kiyohiro Matsushita, Akinori Nakano, Shintaro Ueda, Hirofumi Arai
  • Patent number: 8852463
    Abstract: A metal fine particle for a conductive metal paste includes a protective agent covering a surface of the metal fine particle. An amount of heat generated per unit mass (g) of the metal fine particle is not less than 500 J at a temperature of an external heat source temperature in a range of 200° C. to 300° C. when being calcined by the external heat source. The protective agent includes at least one selected from the group consisting of dipropylamine, dibutylamine, triethylamine, tripropylamine, tributylamine, butanethiol, pentanethiol, hexanethiol, heptanethiol, octanethiol, nonanethiol, decanethiol, undecanethiol and dodecanethiol. The content of the protective agent is in a range of 0.1 to 20% by mass with respect to the mass of the metal fine particle.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: October 7, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Dai Ishikawa, Tomiya Abe
  • Patent number: 8816207
    Abstract: The invention provides a coaxial cable including an internal insulating layer formed on an outer periphery of an electric conductor, a conductive layer formed on an outer periphery of the internal insulating layer, and an external insulating layer formed on an outer periphery of the conductive layer. The conductive layer is made of a metal nanoparticle paste sintered body obtained by sintering metal nanoparticles by irradiation of light toward a metal nanoparticles paste.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: August 26, 2014
    Assignee: Hitachi Cable, Ltd.
    Inventors: Tomiya Abe, Dai Ishikawa, Masanobu Ito, Tadayoshi Tsuchiya
  • Patent number: 8785215
    Abstract: A method for repairing process-related damage of a dielectric film includes: (i) adsorbing a first gas containing silicon on a surface of the damaged dielectric film without depositing a film in the absence of reactive species, (ii) adsorbing a second gas containing silicon on a surface of the dielectric film, followed by applying reactive species to the surface of the dielectric film, to form a monolayer film thereon, and (iii) repeating step (ii). The duration of exposing the surface to the first gas in step (i) is longer than the duration of exposing the surface to the second gas in step (ii).
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: July 22, 2014
    Assignee: ASM IP Holding B.V.
    Inventors: Akiko Kobayashi, Yosuke Kimura, Dai Ishikawa, Kiyohiro Matsushita
  • Publication number: 20140096716
    Abstract: A pedestal for supporting a substrate includes: a heating plate for heating the substrate; an upper cooling plate for cooling the substrate, installed on the heating plate and provided with an upper fluid path for passing a cooling fluid therethrough; and an lower cooling plate for cooling the substrate, installed under the heating plate and including a lower fluid path for passing a cooling fluid therethrough.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 10, 2014
    Applicant: ASM IP Holding B.V.
    Inventors: Hsiao Pei Chung, Hirofumi Arai, Dai Ishikawa
  • Patent number: 8664627
    Abstract: A method for supplying gas over a substrate in a reaction chamber wherein a substrate is placed on a pedestal, includes: supplying a first gas from a first side of the reaction chamber to a second side of the reaction chamber opposite to the first side; and adding a second gas to the first gas from sides of the reaction chamber other than the first side of the reaction chamber so that the second gas travels from sides of the substrate other than the first side in a downstream direction.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: March 4, 2014
    Assignee: ASM IP Holding B.V.
    Inventors: Dai Ishikawa, Kiyohiro Matsushita