Patents by Inventor Tomoyuki Yoshihama

Tomoyuki Yoshihama 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: 9005413
    Abstract: A film formation apparatus includes: a chamber having an inner space in which both a body to be processed and a target are disposed so that the body to be processed and the target are opposed to each other, a first magnetic field generation section generating a magnetic field in the inner space to which the target is exposed; a second magnetic field generation section generating a perpendicular magnetic field so as to allow perpendicular magnetic lines of force thereof to pass between the target the body to be processed; and a third magnetic field generation section disposed at upstream side of the target as seen from the second magnetic field generation section.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: April 14, 2015
    Assignee: ULVAC, Inc.
    Inventors: Shuji Kodaira, Tomoyuki Yoshihama, Koukichi Kamada, Kazumasa Horita, Junichi Hamaguchi, Shigeo Nakanishi, Satoru Toyoda
  • Publication number: 20140048413
    Abstract: There is provided a film forming apparatus for forming a coating film on a surface of an object to be processed by using a sputtering method, the film forming apparatus including: a chamber for accommodating the object and a target serving as a base material for the coating film that are placed so as to face each other; an exhaust unit for reducing the pressure inside the chamber; a magnetic field generating unit for generating a magnetic field in front of the sputtering surface of the target; a direct current power supply for applying a negative direct current voltage to the target; a gas introducing unit for introducing a sputtering gas into the chamber; and a unit for preventing the entering of sputtered particles onto the object until the plasma generated between the target and the object reaches a stable state.
    Type: Application
    Filed: October 23, 2013
    Publication date: February 20, 2014
    Applicant: ULVAC, INC.
    Inventors: Shuji KODAIRA, Tomoyuki YOSHIHAMA, Koukichi KAMADA, Kazumasa HORITA, Junichi HAMAGUCHI, Shigeo NAKANISHI, Satoru TOYODA
  • Publication number: 20120118732
    Abstract: A film formation apparatus includes: a chamber having a side wall and an inner space in which both a body to be processed and a target are disposed a first magnetic field generation section generating a magnetic field in the inner space a second magnetic field generation section disposed at a position close to the target, the second magnetic field generation section generating a magnetic field so as to allow perpendicular magnetic lines of force thereof to pass through a position adjacent to the target; and a third magnetic field generation section disposed at a position close to the body to be processed, the third magnetic field generation section generating a magnetic field so as to induce the magnetic lines of force to the side wall of the chamber.
    Type: Application
    Filed: July 15, 2010
    Publication date: May 17, 2012
    Applicant: ULVAC, INC.
    Inventors: Shuji Kodaira, Tomoyuki Yoshihama, Koukichi Kamada, Kazumasa Horita, Junichi Hamaguchi, Shigeo Nakanishi, Satoru Toyoda
  • Publication number: 20120121818
    Abstract: A coating surface processing method includes forming a coating on the entire surface of a base body that has fine holes or fine grooves formed on the to-be-filmed surface, including the inner wall surfaces and the inner bottom surfaces of the holes or the grooves, and flattening the coating formed on the inner wall surfaces of the holes or the grooves by carrying out a plasma processing on the surface of the coating.
    Type: Application
    Filed: July 21, 2010
    Publication date: May 17, 2012
    Applicant: ULVAC, INC.
    Inventors: Shuji Kodaira, Tomoyuki Yoshihama, Koukichi Kamada, Kazumasa Horita, Junichi Hamaguchi, Shigeo Nakanishi, Satoru Toyoda
  • Publication number: 20120111722
    Abstract: There is provided a film forming apparatus for forming a coating film on a surface of an object to be processed by using a sputtering method, the film forming apparatus including: a chamber for accommodating the object and a target serving as a base material for the coating film that are placed so as to face each other; an exhaust unit for reducing the pressure inside the chamber; a magnetic field generating unit for generating a magnetic field in front of the sputtering surface of the target; a direct current power supply for applying a negative direct current voltage to the target; a gas introducing unit for introducing a sputtering gas into the chamber; and a unit for preventing the entering of sputtered particles onto the object until the plasma generated between the target and the object reaches a stable state.
    Type: Application
    Filed: July 15, 2010
    Publication date: May 10, 2012
    Applicant: ULVAC, INC.
    Inventors: Shuji Kodaira, Tomoyuki Yoshihama, Koukichi Kamada, Kazumasa Horita, Junichi Hamaguchi, Shigeo Nakanishi, Satoru Toyoda
  • Publication number: 20120103801
    Abstract: A film formation apparatus includes: a chamber having an inner space in which both a body to be processed and a target are disposed so that the body to be processed and the target are opposed to each other, a first magnetic field generation section generating a magnetic field in the inner space to which the target is exposed; a second magnetic field generation section generating a perpendicular magnetic field so as to allow perpendicular magnetic lines of force thereof to pass between the target the body to be processed; and a third magnetic field generation section disposed at upstream side of the target as seen from the second magnetic field generation section.
    Type: Application
    Filed: July 15, 2010
    Publication date: May 3, 2012
    Applicant: ULVAC, INC.
    Inventors: Shuji Kodaira, Tomoyuki Yoshihama, Koukichi Kamada, Kazumasa Horita, Junichi Hamaguchi, Shigeo Nakanishi, Satoru Toyoda
  • Publication number: 20120097527
    Abstract: A film formation apparatus includes: a chamber in which both a body to be processed and a target are disposed; a first magnetic field generation section generating a magnetic field; and a second magnetic field generation section including a first generation portion to which a current defined as “Iu” is applied and a second generation portion to which a current defined as “Id” is applied, the first generation portion being disposed at a position close to the target, the second generation portion being disposed at a position close to the body to be processed, the second magnetic field generation section applying the currents to the first generation portion and the second generation portion so as to satisfy the relational expression Id<Iu, the second magnetic field generation section allowing perpendicular magnetic lines to pass between the target and the body to be processed.
    Type: Application
    Filed: July 15, 2010
    Publication date: April 26, 2012
    Applicant: ULVAC, INC.
    Inventors: Shuji Kodaira, Tomoyuki Yoshihama, Koukichi Kamada, Kazumasa Horita, Junichi Hamaguchi, Shigeo Nakanishi, Satoru Toyoda
  • Publication number: 20090078580
    Abstract: As a barrier metal film, a Ti film or a Ta film is formed by sputtering method on a substrate. On top of this barrier metal film there is formed a nitride film by sputtering method. A Cu film is then formed on the nitride film by CVD method and thereafter anneal processing is performed at 100 to 400° C. In this manner, by forming the Cu film, the adhesiveness between the barrier metal film and the Cu film improves.
    Type: Application
    Filed: December 4, 2006
    Publication date: March 26, 2009
    Applicant: ULVAC, Inc.
    Inventors: Tomoyuki Yoshihama, Masamichi Harada, Satoru Toyoda, Harunori Ushikawa