Patents by Inventor Fujio Yagihashi

Fujio Yagihashi 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: 20060289849
    Abstract: The invention includes a semiconductor device. Specifically provided is a semiconductor device comprising a porous film therein, the porous film being formable by a composition comprising a surfactant, an aprotic polar solvent and a solution comprising a polymer formed by hydrolysis and condensation of one or more silane compounds represented by foramula (1) : RnSi(OR?)4-n. Also provided is a method for manufacturing a porous film comprising steps of applying said composition so as to form a film, drying the film and transforming the dried film to a porous film by removing said surfactant. The porous film obtained from the composition for forming porous film is further provided.
    Type: Application
    Filed: August 29, 2006
    Publication date: December 28, 2006
    Inventors: Fujio Yagihashi, Yoshitaka Hamada, Hideo Nakagawa, Masaru Sasago
  • Patent number: 7132473
    Abstract: Provided are a composition for forming film which can form porous film excelling in dielectric constant, adhesiveness, uniformity of the film, mechanical strength and having low hygroscopicity; porous film and a method for forming the film; and a high-performing and highly reliable semiconductor device comprising the porous film inside. More specifically, provided is a composition for forming porous film, the composition comprising siloxane polymer and one or more quaternary ammonium salts represented by following formula (1) or (2): [(R1)4N]+[R2X]???(1) Hk[(R1)4N]m+YV???(2) wherein X represents CO2, OSO3 or SO3; Y represents SO4, SO3, CO3, O2C—CO2, NO3 or NO2; and k is 0 or 1, m is 1 or 2 and n is 1 or 2 in proviso that n=1 requires k=0 and m=1, and n=2 requires k=0 and m=2, or k=1 and m=1.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: November 7, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsutomu Ogihara, Fujio Yagihashi, Yoshitaka Hamada, Takeshi Asano, Motoaki Iwabuchi, Hideo Nakagawa, Masaru Sasago
  • Patent number: 7126208
    Abstract: Provided are a composition for forming porous film which can form a porous film having practical mechanical strength in a simple and low cost process; a porous film and a method for forming the film; and an inexpensive, high-performing and highly reliable semiconductor device comprising the porous film inside. More specifically, provided is a composition for forming porous film, comprising a polymer which is obtainable by hydrolyzing and condensing one or more silane compounds represented by Formula (1), or preferably by hydrolyzing and co-condensing one or more silane compounds represented by Formula (1) and one more silane compounds represented by Formula (2), Formulas (1) and (2) being: (R1)aSi(R2)4-a ??(1) (R3)bSi(R4)4-b ??(2) Also provided is a method for forming porous film comprising a step of applying said composition on a substrate to form film and a step of transforming the film into porous film.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: October 24, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motoaki Iwabuchi, Fujio Yagihashi, Yoshitaka Hamada, Hideo Nakagawa, Masaru Sasago
  • Patent number: 7119354
    Abstract: Provided is a coating liquid which can easily form a porous film having desirably controlled thickness by the method used for a usual semiconductor process, and having an excellent mesopore channel structure. Specifically provided is a composition for forming porous film comprising a surfactant, an aprotic polar solvent and a solution comprising a polymer formed by hydrolysis and condensation of one or more silane compounds represented by foramula (1): RnSi(OR?)4-n. Also provided is a method for manufacturing a porous film comprising steps of applying said composition so as to form a film, drying the film and transforming the dried film to a porous film by removing said surfactant. The porous film obtained from the composition for forming porous film is further provided.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: October 10, 2006
    Assignees: Shin-Etsu Chemical Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Fujio Yagihashi, Yoshitaka Hamada, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20060220253
    Abstract: A porous film-forming composition comprising (A) a curable silicone resin having a Mn of at least 100, (B) a micelle-forming surfactant, and (C) a compound which generates an acid upon pyrolysis remains stable during storage. The composition is coated and heat treated to form a porous film which has flatness, uniformity, a low dielectric constant and a high mechanical strength so that it is best suited as an interlayer dielectric film in the fabrication of semiconductor devices.
    Type: Application
    Filed: June 5, 2006
    Publication date: October 5, 2006
    Inventors: Yoshitaka Hamada, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasao
  • Patent number: 7084505
    Abstract: A porous film-forming composition comprising (A) a curable silicone resin having a Mn of at least 100, (B) a micelle-forming surfactant, and (C) a compound which generates an acid upon pyrolysis remains stable during storage. The composition is coated and heat treated to form a porous film which has flatness, uniformity, a low dielectric constant and a high mechanical strength so that it is best suited as an interlayer dielectric film in the fabrication of semiconductor devices.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: August 1, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshitaka Hamada, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20050165197
    Abstract: The invention provides a coating solution for forming a porous film having excellent mechanical strength and dielectric properties and for easily forming a film with a freely controlled film thickness in an ordinarily employed method in semiconductor process. More specifically, provided are a method for preparing a porous-film-forming composition comprising steps of preparing polysiloxane, silica or zeolite particles (Component A), imparting crosslinkability to Component A, and temporarily terminating the crosslinkability; and a porous-film-forming composition obtainable in this method.
    Type: Application
    Filed: January 24, 2005
    Publication date: July 28, 2005
    Inventors: Tsutomu Ogihara, Fujio Yagihashi, Yoshitaka Hamada, Takeshi Anaso, Motoaki Iwabuchi, Masaru Sasago, Hideo Nakagawa
  • Patent number: 6841334
    Abstract: Disclosed are novel onium salts represented by general formula (R)3S+M, wherein three R's may be the same or different, each being an aryl group, provided that at least one of R's is a t-alkoxy substituted phenyl group, and M is an anion capable of forming the sulfonium salts; and high energy radiation-responsive positive resist materials using said novel onium salts as acid generator.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: January 11, 2005
    Assignees: Shin-Etsu Chemical Co., Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Fujio Yagihashi, Tomoyoshi Furihata, Jun Watanabe, Akinobu Tanaka, Yoshio Kawai, Tadahito Matsuda
  • Publication number: 20040253461
    Abstract: It is an object of the present invention to provide a material for an antireflective film that has high etching selectivity with respect to the resist, that is, that has a faster etching speed than the resist, a pattern formation method for forming an antireflective film layer on a substrate using this antireflective film material, and a pattern formation method using this antireflective film as a hard mask for substrate processing. The present invention provides a silicone resin for preventing reflection comprising an organic group comprising a carbon-oxygen single bond and/or a carbon-oxygen double bond; a light-absorbing group; and a silicon atom whose terminal end or ends are Si—OH and/or Si—OR. It also provides an antireflective film material comprising this silicone resin (A) for preventing reflection film, an organic solvent (B) and an acid generator (C).
    Type: Application
    Filed: June 2, 2004
    Publication date: December 16, 2004
    Inventors: Tsutomu Ogihara, Takeshi Asano, Motoaki Iwabuchi, Fujio Yagihashi
  • Publication number: 20040247900
    Abstract: It is an object of the present invention to provide a material for an antireflective film that has high etching selectivity with respect to the resist, that is, that has a faster etching speed than the resist, a pattern formation method for forming an antireflective film layer on a substrate using this antireflective film material, and a pattern formation method using this antireflective film as a hard mask for substrate processing. The present invention provides an antireflective film material comprising a polymer (A) comprising copolymerized repeating units expressed by the Formula (1) and/or the Formula (2), an organic solvent (B), an acid generator (C) and a crosslinking agent (D).
    Type: Application
    Filed: June 2, 2004
    Publication date: December 9, 2004
    Inventors: Tsutomu Ogihara, Takeshi Asano, Motoaki Iwabuchi, Fujio Yagihashi
  • Publication number: 20040241579
    Abstract: Provided is a positive resist material, particularly a chemically amplified positive resist material having higher sensitivity, higher resolution, a higher exposure latitude and better process adaptability than conventional positive resist materials, and providing a good pattern profile after exposure, particularly having lessened line edge roughness and exhibiting excellent etching resistance. These materials may contain, preferably an organic solvent and acid generator, more preferably a dissolution inhibitor or a basic compound and/or a surfactant. Provided is a positive resist material comprising a polymer comprising at least one monomer unit selected from a group consisting of a monomer unit (A), a monomer unit (B) and a monomer unit (C) represented by the following formula (1); and having a glass transition temperature (Tg) of 100° C. or greater.
    Type: Application
    Filed: May 26, 2004
    Publication date: December 2, 2004
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshitaka Hamada, Fujio Yagihashi, Mutsuo Nakashima, Kazumi Noda, Katsuya Takemura
  • Publication number: 20040235971
    Abstract: Provided are a composition for forming film which can form a porous film excelling in dielectric constant, adhesiveness, uniformity of the film, mechanical strength and having low hygroscopicity; a porous film and a method for forming the film; and a high-performing and highly reliable semiconductor device comprising the porous film inside.
    Type: Application
    Filed: November 12, 2003
    Publication date: November 25, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshitaka Hamada, Fujio Yagihashi, Hideo Naskagawa, Masaru Sasago
  • Publication number: 20040232553
    Abstract: Provided are a composition for forming porous film which can form a porous film having practical mechanical strength in a simple and low cost process; a porous film and a method for forming the film; and an inexpensive, high-performing and highly reliable semiconductor device comprising the porous film inside.
    Type: Application
    Filed: November 12, 2003
    Publication date: November 25, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motoaki Iwabuchi, Fujio Yagihashi, Yoshitaka Hamada, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20040216641
    Abstract: Provided are a composition for forming film which can form a porous film excelling in dielectric constant, adhesiveness, uniformity of the film, mechanical strength and having low hygroscopicity; the prous film and the method for manufacturing the same, and a high-performing and highly reliable semiconductor device comprising the porous film inside. More specifically, provided is a composition for forming porous film obtainable by hydrolysis and condensation, in an acidic or alkaline condition, of a mixture of 100 parts by weight of one or more compounds selected of the group consisting of hydrolysable silicon compounds represented by Formulas (1) and (2) and partially hydrolyzed and condensed products of the hydrolysable silicon compounds represented by Formulas (1) and (2), and 0.1 to 20 parts by weight of one or more cross-linking agents selected from the group consisting of structure-controlled cyclic or multi-branched oligomers represented by Formulas (3) to (8).
    Type: Application
    Filed: November 12, 2003
    Publication date: November 4, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshitaka Hamada, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20040219372
    Abstract: Provided are a composition for forming film which can form porous film excelling in dielectric constant, adhesiveness, uniformity of the film, mechanical strength and having low hygroscopicity; porous film and a method for forming the film; and a high-performing and highly reliable semiconductor device comprising the porous film inside.
    Type: Application
    Filed: November 12, 2003
    Publication date: November 4, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsutomu Ogihara, Fujio Yagihashi, Yoshitaka Hamada, Takeshi Asano, Motoaki Iwabuchi, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20040201007
    Abstract: Provided is a coating liquid which can easily form a porous film having desirably controlled thickness by the method used for a usual semiconductor process, and having an excellent mesopore channel structure. Specifically provided is a composition for forming porous film comprising a surfactant, an aprotic polar solvent and a solution comprising a polymer formed by hydrolysis and condensation of one or more silane compounds represented by foramula (1): RnSi(OR′)4-n. Also provided is a method for manufacturing a porous film comprising steps of applying said composition so as to form a film, drying the film and transforming the dried film to a porous film by removing said surfactant. The porous film obtained from the composition for forming porous film is further provided.
    Type: Application
    Filed: March 26, 2004
    Publication date: October 14, 2004
    Applicants: Shin-Etsu Chemical Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Fujio Yagihashi, Yoshitaka Hamada, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20040202874
    Abstract: Provided are a film formation composition which can produce a film having high strength and low dielectric constant, a method for manufacturing the same, a method for forming a porous film, a porous film, and a semiconductor device containing the porous film internally.
    Type: Application
    Filed: April 7, 2004
    Publication date: October 14, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Motoaki Iwabuchi, Fujio Yagihashi, Yoshitaka Hamada, Takeshi Asano, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20040201014
    Abstract: Provided are a coating liquid for forming porous film which can produce desirably controlled thickness of the film and which excels in stability, and a semiconductor device comprising the porous film inside.
    Type: Application
    Filed: April 7, 2004
    Publication date: October 14, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Fujio Yagihashi, Motoaki Iwabuchi, Takeshi Asano, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20040188846
    Abstract: A porous film-forming composition comprising (A) a curable silicone resin having a Mn of at least 100, (B) a micelle-forming surfactant, and (C) a compound which generates an acid upon pyrolysis remains stable during storage. The composition is coated and heat treated to form a porous film which has flatness, uniformity, a low dielectric constant and a high mechanical strength so that it is best suited as an interlayer dielectric film in the fabrication of semiconductor devices.
    Type: Application
    Filed: March 25, 2004
    Publication date: September 30, 2004
    Inventors: Yoshitaka Hamada, Fujio Yagihashi, Hideo Nakagawa, Masaru Sasago
  • Publication number: 20040188809
    Abstract: According to the invention, the thin film having the thickness controlled desirably can be easily formed using common semiconductor processes. Provided is a coating liquid for forming the porous film having an excellent dielectric property and mechanical property. Specifically, the coating liquid for forming a porous film comprises the condensation product obtained by condensation of one or more silicate compounds represented by the formula (X2O) i(SiO2)j(H2O)k and one more organosilate compounds represented by the formula (X2O)a(RSiO1.5)b(H2O)c. Thus, the porous insulating film having sufficient mechanical strength and dielectric properties for use in the semiconductor manufacturing process can be manufactured.
    Type: Application
    Filed: March 25, 2004
    Publication date: September 30, 2004
    Applicants: Shin-Etsu Chemical Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Tsutomu Ogihara, Fujio Yagihashi, Yoshitaka Hamada, Takeshi Asano, Motoaki Iwabuchi, Hideo Nakagawa, Masaru Sasago