Patents by Inventor Chihiro Hasegawa

Chihiro Hasegawa 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: 9194041
    Abstract: The present invention relates to a tris(dialkylamide)aluminum compound, and a method for producing an aluminum-containing thin film using the aluminum compound, the tris(dialkylamide)aluminum compound being represented by the formula (1): wherein R represents a linear alkyl group having 1 to 6 carbon atoms; and R1, R2 and R3 may be the same as, or different from each other, and each independently represents hydrogen atom, or a linear or branched alkyl group having 1 to 6 carbon atoms, or R1, R2 and R3 may be joined together to form a ring, with the proviso that the compounds in which two or more of R1, R2 and R3 are hydrogen atoms are excluded, and three dialkylamide ligands may be the same as, or different from each other.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: November 24, 2015
    Assignee: UBE Industries, Ltd.
    Inventors: Masashi Shirai, Chihiro Hasegawa, Hiroshi Nihei
  • Publication number: 20140295084
    Abstract: The present invention relates to a tris(dialkylamide)aluminum compound, and a method for producing an aluminum-containing thin film using the aluminum compound, the tris(dialkylamide)aluminum compound being represented by the formula (1): wherein R represents a linear alkyl group having 1 to 6 carbon atoms; and R1, R2 and R3 may be the same as, or different from each other, and each independently represents hydrogen atom, or a linear or branched alkyl group having 1 to 6 carbon atoms, or R1, R2 and R3 may be joined together to form a ring, with the proviso that the compounds in which two or more of R1, R2 and R3 are hydrogen atoms are excluded, and three dialkylamide ligands may be the same as, or different from each other.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 2, 2014
    Inventors: Masashi Shirai, Chihiro Hasegawa, Hiroshi Nihei
  • Patent number: 8304567
    Abstract: An organoruthenium complex represented by the general formula (1-1), bis(acetylacetonato)(1,5-hexadiene)ruthenium and bis(acetylacetonato)(1,3-pentadiene)ruthenium have low melting points, show excellent stability against moisture, air and heat, and are suitable for the film formation by a CVD method. (1-1) wherein X represents a group represented by the general formula (1-2); Y represent a group represented by the general formula (1-2) or a linear or branched alkyl group having 1 to 8 carbon atoms; Z represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and L represents an unsaturated hydrocarbon compound having at least two double bonds: (1-2) wherein Ra and Rb independently represent a linear or branched alkyl group having 1 to 5 carbon atoms.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: November 6, 2012
    Assignee: Ube Industries, Ltd
    Inventors: Takumi Kadota, Chihiro Hasegawa, Hiroki Kanato, Hiroshi Nihei
  • Patent number: 8183153
    Abstract: Disclosed is a method for manufacturing a semiconductor device which is decreased in resistance of a copper wiring containing a ruthenium-containing film and a copper-containing film, thereby having improved reliability. Also disclosed is an apparatus for manufacturing a semiconductor device. Specifically, an Ru film is formed on a substrate having a recessed portion by a CVD method using a raw material containing an organic ruthenium complex represented by the general formula and a reducing gas (step S12). Then, a Cu film is formed on the Ru film by a CVD method using a raw material containing an organic copper complex represented by the general formula and a reducing gas, thereby forming a copper wiring containing the Ru film and the Cu film in the recessed portion (step S14).
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: May 22, 2012
    Assignee: Ulvac, Inc.
    Inventors: Hideaki Zama, Michio Ishikawa, Takumi Kadota, Chihiro Hasegawa
  • Publication number: 20100317189
    Abstract: Disclosed is a method for manufacturing a semiconductor device which is decreased in resistance of a copper wiring containing a ruthenium-containing film and a copper-containing film, thereby having improved reliability. Also disclosed is an apparatus for manufacturing a semiconductor device. Specifically, an Ru film is formed on a substrate having a recessed portion by a CVD method using a raw material containing an organic ruthenium complex represented by the general formula and a reducing gas (step S12). Then, a Cu film is formed on the Ru film by a CVD method using a raw material containing an organic copper complex represented by the general formula and a reducing gas, thereby forming a copper wiring containing the Ru film and the Cu film in the recessed portion (step S14).
    Type: Application
    Filed: September 3, 2008
    Publication date: December 16, 2010
    Applicant: ULVAC, INC.
    Inventors: Hideaki Zama, Michio Ishikawa, Takumi Kadota, Chihiro Hasegawa
  • Publication number: 20100055313
    Abstract: An organoruthenium complex represented by the general formula (1-1), bis(acetylacetonato)(1,5-hexadiene)ruthenium and bis(acetylacetonato)(1,3-pentadiene)ruthenium have low melting points, show excellent stability against moisture, air and heat, and are suitable for the film formation by a CVD method. (1-1) wherein X represents a group represented by the general formula (1-2); Y represent a group represented by the general formula (1-2) or a linear or branched alkyl group having 1 to 8 carbon atoms; Z represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; and L represents an unsaturated hydrocarbon compound having at least two double bonds: (1-2) wherein Ra and Rb independently represent a linear or branched alkyl group having 1 to 5 carbon atoms.
    Type: Application
    Filed: July 26, 2007
    Publication date: March 4, 2010
    Applicant: UBE INDUSTRIES, LTD
    Inventors: Takumi Kadota, Chihiro Hasegawa, Hiroki Kanato, Hiroshi Nihei
  • Patent number: 7595414
    Abstract: To provide a metal complex compound capable of being suitably used for manufacturing a metal-containing thin film by the CVD method and a method for preparing a metal-containing thin film. A metal complex compound comprising a ?-diketonato ligand having an alkoxyalkyl-methyl group, and a method for preparing a metal-containing thin film using the metal complex compound by the CVD method.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: September 29, 2009
    Assignee: UBE Industries, Ltd.
    Inventors: Takumi Kadota, Chihiro Hasegawa, Kouhei Watanuki, Hiroyuki Sakurai, Hiroki Kanato
  • Publication number: 20080254216
    Abstract: [PROBLEMS] To provide a metal complex compound capable of being suitably used for manufacturing a metal-containing thin film by the CVD method and a method for preparing a metal-containing thin film. [MEANS FOR SOLVING PROBLEMS] A metal complex compound comprising a ?-diketonato ligand having an alkoxyalkyl-methyl group, and a method for preparing a metal-containing thin film using the metal complex compound by the CVD method.
    Type: Application
    Filed: March 15, 2005
    Publication date: October 16, 2008
    Applicant: Ube Industries, Ltd.
    Inventors: Takumi Kadota, Chihiro Hasegawa, Kouhei Watanuki, Hiroyuki Sakurai, Hiroki Kanato
  • Patent number: 6992200
    Abstract: Copper-containing thin films can be industrially advantageously formed by chemical vapor deposition using as the copper source a divalent copper complex bearing ?-diketonato ligands having silyl ether linkage. A representative example of the divalent copper complex is represented by the formula (I): wherein Z is hydrogen or alkyl; X is a group represented by the formula (I—I), in which Ra is alkylene, and each of Rb, Rc and Rd is alkyl; and Y is an alkyl group or a group represented by the formula (I—I), in which Ra is alkylene, and each of Rb, Rc and Rd is alkyl.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: January 31, 2006
    Assignee: UBE Industries, Ltd.
    Inventors: Takumi Kadota, Chihiro Hasegawa, Kouhei Watanuki
  • Publication number: 20050080282
    Abstract: Copper-containing thin films can be industrially advantageously formed by chemical vapor deposition using as the copper source a divalent copper complex bearing ?-diketonato ligands having silyl ether linkage. A representative example of the divalent copper complex is represented by the formula (I): wherein Z is hydrogen or alkyl; X is a group represented by the formula (I-I), in which Ra is alkylene, and each of Rb, Rc and Rd is alkyl; and Y is an alkyl group or a group represented by the formula (I-I), in which Ra is alkylene, and each of Rb, Rc and Rd is alkyl.
    Type: Application
    Filed: January 31, 2003
    Publication date: April 14, 2005
    Applicant: Ube Indstries, Ltd.
    Inventors: Takumi Kadota, Chihiro Hasegawa, Kouhei Watanuki