Patents by Inventor Masahiko Hasunuma

Masahiko Hasunuma 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: 20080299766
    Abstract: A method for fabricating a semiconductor device, includes forming a first dielectric film above a substrate, forming an opening in the first dielectric film, forming a catalytic characteristic film using at least one of a metal having catalytic characteristics and a conductive oxide having catalytic characteristics as its material on sidewalls and at a bottom of the opening, depositing a conductive material film using a conductive material in the opening in which the catalytic characteristic film is formed on the sidewalls and at the bottom, removing the catalytic characteristic film formed on the sidewalls of the opening, and forming a second dielectric film above the first dielectric film and the conductive material film after the removing.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Inventors: Seiichi OMOTO, Hisashi Kaneko, Masahiko Hasunuma
  • Publication number: 20080284542
    Abstract: A film bulk acoustic resonator includes: a substrate; a lower electrode held on the substrate with at least a portion thereof being in a hollow state; a piezoelectric film provided on the lower electrode; and an upper electrode provided on the piezoelectric film. At least one of the lower electrode and the upper electrode is primarily composed of copper (Cu) and further contains a first element having a negatively larger free energy of oxide formation (?G) than copper. At least one of the lower electrode and the upper electrode is primarily composed of copper (Cu) and further contains a second element having smaller surface energy than copper.
    Type: Application
    Filed: October 24, 2007
    Publication date: November 20, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenya Sano, Masahiko Hasunuma, Hiroshi Toyoda
  • Publication number: 20080261398
    Abstract: A method for manufacturing a semiconductor device includes heating a substrate having an insulation film thereon to a first substrate temperature so that oxidizing species are emitted from the insulating film, the insulating film having a recessed portion formed in a surface thereof, forming a metal film on the insulating film at a second substrate temperature lower than the first substrate temperature, and oxidizing at least part of the metal film with oxidizing species remaining in the insulating film.
    Type: Application
    Filed: January 24, 2008
    Publication date: October 23, 2008
    Inventors: Atsuko Sakata, Junichi Wada, Seiichi Omoto, Masaaki Hatano, Soichi Yamashita, Kazuyuki Higashi, Naofumi Nakamura, Masaki Yamada, Kazuya Kinoshita, Tomio Katata, Masahiko Hasunuma
  • Publication number: 20080237863
    Abstract: A semiconductor device, which is comprised of a copper wiring layer which is formed above a semiconductor substrate, a pad electrode layer which conducts electrically to the copper wiring layer and has an alloy, which contains copper and a metal whose oxidation tendency is higher than copper, formed to extend to the bottom surface, and an insulating protective film which has an opening extended to the pad electrode layer, is provided.
    Type: Application
    Filed: April 22, 2008
    Publication date: October 2, 2008
    Applicant: Kabushiki Kaisha Tosiba
    Inventors: Hiroshi Toyoda, Mitsuhiro Nakao, Masahiko Hasunuma, Hisashi Kaneko, Atsuko Sakata, Toshiaki Komukai
  • Patent number: 7420320
    Abstract: A piezoelectric thin film device includes an amorphous metal film disposed on a substrate and a piezoelectric film disposed on the amorphous metal. One of crystal axis of the piezoelectric film is aligned in a direction perpendicular to a surface of the amorphous metal.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: September 2, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenya Sano, Ryoichi Ohara, Naoko Yanase, Takaaki Yasumoto, Kazuhiko Itaya, Takashi Kawakubo, Hiroshi Toyoda, Masahiko Hasunuma, Toshihiko Nagano, Kazuhide Abe, Michihiko Nishigaki, Hironobu Shibata
  • Publication number: 20080164614
    Abstract: A semiconductor device including at least two layers of interlayer-insulator-films stacked above a substrate and at least partially formed by a low-relative-dielectric-constant-film having a relative-dielectric-constant of 3.
    Type: Application
    Filed: December 26, 2007
    Publication date: July 10, 2008
    Inventors: Sachiyo Ito, Masahiko Hasunuma
  • Publication number: 20080122102
    Abstract: A method for manufacturing a semiconductor device includes heating a substrate having an insulation film thereon to a first substrate temperature so that oxidizing species are emitted from the insulating film, the insulating film having a recessed portion formed in a surface thereof, forming a metal film on the insulating film at a second substrate temperature lower than the first substrate temperature, and oxidizing at least part of the metal film with oxidizing species remaining in the insulating film.
    Type: Application
    Filed: January 24, 2008
    Publication date: May 29, 2008
    Inventors: Atsuko Sakata, Junichi Wada, Seiichi Omoto, Masaaki Hatano, Soichi Yamashita, Kazuyuki Higashi, Naofumi Nakamura, Masaki Yamada, Kazuya Kinoshita, Tomio Katata, Masahiko Hasunuma
  • Publication number: 20080102628
    Abstract: A method for manufacturing a semiconductor device includes forming, on a substrate having a recessed portion on a surface, a plating film which is at least buried in the recessed portion and has a higher impurity concentration in an upper portion than in a lower portion, thermally treating the plating film, and removing the thermally treated plating film except for a portion buried in the recessed portion.
    Type: Application
    Filed: October 29, 2007
    Publication date: May 1, 2008
    Inventors: Masahiko Hasunuma, Hisashi Kaneko, Hiroshi Toyoda
  • Publication number: 20080090410
    Abstract: A method for manufacturing a semiconductor device includes heating a substrate having an insulation film thereon to a first substrate temperature so that oxidizing species are emitted from the insulating film, the insulating film having a recessed portion formed in a surface thereof, forming a first metal film on the insulating film at a second substrate temperature lower than the first substrate temperature, oxidizing at least part of the first metal film with oxidizing species remaining in the insulating film, and forming a second metal film, which includes any of a high melting point metal and a noble metal, on the first metal film, the first metal film and the second metal film sharing different metallic material.
    Type: Application
    Filed: August 30, 2007
    Publication date: April 17, 2008
    Inventors: Atsuko Sakata, Junichi Wada, Seiichi Omoto, Masaaki Hatano, Soichi Yamashita, Kazuyuki Higashi, Naofumi Nakamura, Masaki Yamada, Kazuya Kinoshita, Tomio Katata, Masahiko Hasunuma
  • Patent number: 7351656
    Abstract: A method for manufacturing a semiconductor device includes heating a substrate having an insulation film thereon to a first substrate temperature so that oxidizing species are emitted from the insulating film, the insulating film having a recessed portion formed in a surface thereof, forming a metal film on the insulating film at a second substrate temperature lower than the first substrate temperature, and oxidizing at least part of the metal film with oxidizing species remaining in the insulating film.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: April 1, 2008
    Assignee: Kabushiki Kaihsa Toshiba
    Inventors: Atsuko Sakata, Junichi Wada, Seiichi Omoto, Masaaki Hatano, Soichi Yamashita, Kazuyuki Higashi, Naofumi Nakamura, Masaki Yamada, Kazuya Kinoshita, Tomio Katata, Masahiko Hasunuma
  • Publication number: 20080072408
    Abstract: A piezoelectric thin film device includes an amorphous metal film disposed on a substrate and a piezoelectric film disposed on the amorphous metal. One of crystal axis of the piezoelectric film is aligned in a direction perpendicular to a surface of the amorphous metal.
    Type: Application
    Filed: November 29, 2007
    Publication date: March 27, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenya SANO, Ryoichi Ohara, Naoko Yanase, Takaaki Yasumoto, Kazuhiko Itaya, Takashi Kawakubo, Hiroshi Toyoda, Masahiko Hasunuma, Toshihiko Nagano, Kazuhide Abe, Michihiko Nishigaki, Hironobu Shibata
  • Publication number: 20080074005
    Abstract: A piezoelectric thin film device includes an amorphous metal film disposed on a substrate and a piezoelectric film disposed on the amorphous metal. One of crystal axis of the piezoelectric film is aligned in a direction perpendicular to a surface of the amorphous metal.
    Type: Application
    Filed: November 29, 2007
    Publication date: March 27, 2008
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kenya SANO, Ryoichi Ohara, Naoko Yanase, Takaaki Yasumoto, Kazuhiko Itaya, Takashi Kawakubo, Hiroshi Toyoda, Masahiko Hasunuma, Toshihiko Nagano, Kazuhide Abe, Michihiko Nishigaki, Hironobu Shibata
  • Patent number: 7339256
    Abstract: A semiconductor device includes a first insulating layer provided above a semiconductor substrate. The first insulating layer includes a layer consisting essentially of a material having a relative dielectric constant smaller than 3. The first insulating layer includes a first integral structure consisting of a plug and wiring. The upper surface of the wiring is flush with the upper surface of the first insulating layer, and the lower surface of the plug is flush with the lower surface of the first insulating layer. A region protective member is formed of a second integral structure consisting of a plug and wiring. The second integral structure extends from the upper surface of the first insulating layer to the lower surface of the first insulating layer. The region protective member surrounds one of first to n-th regions (n being a natural 2 or more) partitioned by a boundary region on a horizontal plane.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: March 4, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Naofumi Nakamura, Noriaki Matsunaga, Sachiyo Ito, Masahiko Hasunuma, Takeshi Nishioka
  • Patent number: 7323805
    Abstract: A piezoelectric thin film device includes an amorphous metal film disposed on a substrate and a piezoelectric film disposed on the amorphous metal. One of crystal axis of the piezoelectric film is aligned in a direction perpendicular to a surface of the amorphous metal.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: January 29, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenya Sano, Ryoichi Ohara, Naoko Yanase, Takaaki Yasumoto, Kazuhiko Itaya, Takashi Kawakubo, Hiroshi Toyoda, Masahiko Hasunuma, Toshihiko Nagano, Kazuhide Abe, Michihiko Nishigaki, Hironobu Shibata
  • Patent number: 7314827
    Abstract: A method of manufacturing a semiconductor device according to an aspect of the present invention comprises forming a plated film on a substrate which has a recessed portion on its surface so as to bury in the recessed portion by a plating method; forming over the plated film a compressive stress-applying film which is composed of a material having a thermal expansion coefficient of 60% or less compared with a thermal expansion coefficient of a metal composing the plated film; heat-treating while applying a compressive stress to the plated film by the compressive stress-applying film; and removing the compressive stress-applying film and the plated film which is not buried in the recessed portion.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: January 1, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Toyoda, Sachiyo Ito, Masahiko Hasunuma, Hisashi Kaneko
  • Patent number: 7301240
    Abstract: A semiconductor device is disclosed, which includes at least two layers superposed on each other in a stacking direction above a substrate, each of the layers including an insulating film a conductive layer films, a conductive plug electrically connected to the conductive layer, and at least one dummy via chain provided in the insulating films and stacked in the at least two layers, wherein the dummy via chain includes at least two reinforcing metal layers and at least one reinforcing plug.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: November 27, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Hasunuma, Sachiyo Ito
  • Patent number: 7285859
    Abstract: There is disclosed a semiconductor device comprising a plurality of inter-level dielectric films which are stacked and provided in plural layers above a substrate, at least one first conductor which is provided in at least one inter-level dielectric film of the stacked inter-level dielectric films, and a plurality of second conductors which are provided in the inter-level dielectric film in which the first conductor is provided and which are connected to the lower surface of the first conductor and which are extended along the downward direction from the first conductor and further extended along a first direction and a second direction perpendicular to the first direction in such a manner as to be spaced apart from each other to form a lattice shape.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: October 23, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masahiko Hasunuma, Sachiyo Ito
  • Publication number: 20070202699
    Abstract: A method for fabricating an electronic component, includes forming a seed film above a base body, cooling said seed film, and putting the cooled seed film into a plating solution to perform electro-plating with said seed film being as a cathode.
    Type: Application
    Filed: February 26, 2007
    Publication date: August 30, 2007
    Inventors: Hiroshi Toyoda, Masahiko Hasunuma
  • Publication number: 20070204243
    Abstract: A stress analysis method is provided: including dividing, by using a division unit, an inside of a chip into a plurality of analysis areas, deriving, by using a composite property derivation unit, a composite property into which physical property values of a plurality of materials included in an analysis area are compounded, about each of the plurality of analysis areas on the basis of wiring structure data for each of the plurality of analysis areas, and creating, by using a stress analysis unit, a three-dimensional model of a finite element method which uses each analysis area as an element, to apply the composite property to each element, and to perform a stress analysis.
    Type: Application
    Filed: February 7, 2007
    Publication date: August 30, 2007
    Inventors: Sachiyo Ito, Masahiko Hasunuma, Hisashi Kaneko
  • Publication number: 20070108618
    Abstract: A semiconductor device is disclosed, which includes at least two layers superposed on each other in a stacking direction above a substrate, each of the layers including an insulating film a conductive layer films, a conductive plug electrically connected to the conductive layer, and at least one dummy via chain provided in the insulating films and stacked in the at least two layers, wherein the dummy via chain includes at least two reinforcing metal layers and at least one reinforcing plug.
    Type: Application
    Filed: January 9, 2007
    Publication date: May 17, 2007
    Inventors: Masahiko Hasunuma, Sachiyo Ito