Patents by Inventor Tadahiro Imada

Tadahiro Imada 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: 20090309196
    Abstract: A surface-hydrophobicized film is provided which is in contact with an insulating film, and has a higher hydrophobicity than the insulating film at the time of the contact, and which is in contact, on an opposite side of the surface-hydrophobicized film, with wiring, and contains at least one atom selected from the group consisting of sulfur atoms, phosphorus atoms and nitrogen atoms. Semiconductor devices with wiring layers having a low leakage current, a high EM resistance and a high TDDB resistance can be manufactured by using the film.
    Type: Application
    Filed: August 21, 2009
    Publication date: December 17, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Tadahiro Imada, Yoshihiro Nakata
  • Publication number: 20090085170
    Abstract: An interfacial roughness reducing film which is in contact, on one side thereof, with an insulating film and in contact, on a side opposite from the one side, with wiring comprises a Si—O bond, and is formed using a composition containing a silicon compound that comprises at least one bond of Si—N bonds and Si—Cl bonds wherein the number of Si—N bonds and Si—Cl bonds combined per molecule of the compound is at least two. An interfacial roughness between the interfacial roughness reducing film and the wiring is smaller than that between the interfacial roughness reducing film and the insulating film.
    Type: Application
    Filed: September 25, 2008
    Publication date: April 2, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Tadahiro Imada, Yoshihiro Nakata, Kouta Yoshikawa
  • Publication number: 20090061633
    Abstract: According to an aspect of an embodiment, a method of manufacturing a semiconductor device has forming an insulating layer comprising silica-based insulating material, processing the insulating layer, hydrophobizing the insulating layer by applying a silane compound to act on the insulating layer; and irradiating the insulating layer with light or an electron beam.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 5, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihiro NAKATA, Tadahiro IMADA, Shirou OZAKI, Yasushi KOBAYASHI, Kohta YOSHIKAWA, Ei YANO
  • Patent number: 7470975
    Abstract: It is an object of the present invention to provide, with good yields, a composition for forming an insulation film which allows obtaining an insulation film for a semiconductor device having a low dielectric constant, excellent stress resistance and excellent crack resistance; an insulation film for a semiconductor device formed from the composition for forming an insulation film; and a high quality and highly reliable semiconductor device fabricated using the insulation film for a semiconductor device. This composition for forming an insulation film comprises a polymer of which the main chain is a chain portion which substantially contains only carbon, silicon and hydrogen, and which contains nitrogen in portions other than the main chain. It is preferable that nitrogen exists as a constituent represented by Formula 1 in the polymer.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: December 30, 2008
    Assignee: Fujitsu Limited
    Inventors: Tadahiro Imada, Yoshihiro Nakata, Yasushi Kobayashi
  • Publication number: 20080206999
    Abstract: A wet etching method that includes forming an insulating film on a substrate, and irradiating laser light to the insulating film during wet etching of the insulating film using an etching solution.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 28, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Tadahiro IMADA, Yoshihiro NAKATA, Koji NOZAKI
  • Publication number: 20080057717
    Abstract: A semiconductor device manufacturing method that includes depositing a first insulating film on a semiconductor substrate, etching a part of the first insulating film, and performing UV irradiation to the first insulating film.
    Type: Application
    Filed: August 23, 2007
    Publication date: March 6, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Tamotsu OWADA, Hirofumi WATATANI, Shirou OZAKI, Hisaya SAKAI, Kenichi YANAI, Naoki OHARA, Tadahiro IMADA, Yoshihiro NAKATA
  • Publication number: 20070232075
    Abstract: Techniques for obtaining a wiring layer with a high TDDB resistance and little leakage current, and accordingly, for manufacturing a highly reliable semiconductor device with a small electric power consumption are provided, in which an interfacial roughness reducing film is formed which is in contact with an insulator film and also in contact with a wiring line on the other side surface thereof, and has an interfacial roughness between the wiring line and the interfacial roughness reducing film smaller than that between the insulator film and the interfacial roughness reducing film.
    Type: Application
    Filed: March 23, 2007
    Publication date: October 4, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Tadahiro Imada, Yoshihiro Nakata, Ei Yano
  • Publication number: 20070197047
    Abstract: It is an object of the present invention to provide, with good yields, a composition for forming an insulation film which allows obtaining an insulation film for a semiconductor device having a low dielectric constant, excellent stress resistance and excellent crack resistance; an insulation film for a semiconductor device formed from the composition for forming an insulation film; and a high quality and highly reliable semiconductor device fabricated using the insulation film for a semiconductor device. This composition for forming an insulation film comprises a polymer of which the main chain is a chain portion which substantially contains only carbon, silicon and hydrogen, and which contains nitrogen in portions other than the main chain. It is preferable that nitrogen exists as a constituent represented by Formula 1 in the polymer.
    Type: Application
    Filed: June 5, 2006
    Publication date: August 23, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Tadahiro Imada, Yoshihiro Nakata, Yasushi Kobayashi
  • Publication number: 20070111539
    Abstract: The present invention aims at providing: a material for forming an adhesion reinforcing layer which can reinforce the adhesion between a low dielectric constant film, especially a low dielectric constant film containing an inorganic material, and other members; an adhesion reinforcing layer formed by the said material and exhibits superior adhesion; a fast and highly reliable semiconductor device having the adhesion reinforcing layer; and a manufacturing method thereof. The material for forming an adhesion reinforcing layer contains at least any one of organoalkoxysilane having a basic functional group, a basic additive and organoalkoxysilane. The adhesion reinforcing layer is formed by the said material. The manufacturing method of a semiconductor device includes a process for forming a low dielectric constant film and, at least before or after the process for forming a low dielectric constant film, a process for forming an adhesion reinforcing layer with the said material.
    Type: Application
    Filed: April 3, 2006
    Publication date: May 17, 2007
    Applicant: FUJITSU LIMITED
    Inventors: Junichi Kon, Ei Yano, Yoshihiro Nakata, Tadahiro Imada