Patents by Inventor Yoshitaka KAMOCHI

Yoshitaka KAMOCHI 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: 10833272
    Abstract: Provided are a laminate which includes an organic semiconductor film, a water-soluble resin layer, and a photosensitive resin layer and in which cracks are unlikely to occur; and a kit. The laminate includes a water-soluble resin layer containing a water-soluble resin and a photosensitive resin layer containing a photosensitive resin, which are provided in this order on an organic semiconductor film. The water-soluble resin layer and the photosensitive resin layer are adjacent to each other, the water-soluble resin is at least one of polyvinylpyrrolidone having a weight-average molecular weight of 300,000 or greater or polyvinyl alcohol having a weight-average molecular weight of 15,000 or greater, and the photosensitive resin has a weight-average molecular weight of 30,000 or greater.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: November 10, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Seiya Masuda, Yoshitaka Kamochi, Atsushi Nakamura
  • Patent number: 10580640
    Abstract: Provided are a kit and a laminate which are capable of suppressing residues derived from a temporary adhesive in manufacture of a semiconductor. The kit for manufacturing a semiconductor device includes a composition which contains a solvent A; a composition which contains a solvent B; and a composition which contains a solvent C, in which the kit is used when a temporary adhesive layer is formed on a first substrate using a temporary adhesive composition containing a temporary adhesive and the solvent A, at least some of an excessive amount of the temporary adhesive on the first substrate is washed using the composition containing the solvent B, a laminate is manufactured by bonding the first substrate and a second substrate through the temporary adhesive layer, one of the first substrate and the second substrate is peeled off from the laminate at a temperature of lower than 40° C.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 3, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yoshitaka Kamochi, Yu Iwai, Ichiro Koyama, Atsushi Nakamura
  • Patent number: 10442961
    Abstract: Provided are a composition which has good elastomer solubility, is thus capable of increasing a concentration of solid contents, and is capable of forming a film having excellent drying properties, surface morphology, and heat resistance, a process for producing a sheet, a sheet, a laminate, and a laminate with a device wafer. This composition includes an elastomer having a 5% thermal mass reduction temperature of 375° C. or higher when heated at an elevation rate of 20° C./min from 25° C., a solvent represented by the following General Formula (1) and having a boiling point of 160° C. or higher, and a solvent having a boiling point of lower than 120° C. In General Formula (1), R1 to R6 each independently represent a hydrogen atom or an aliphatic hydrocarbon group.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 15, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yoshitaka Kamochi, Ichiro Koyama, Yu Iwai, Atsushi Nakamura, Mitsuru Sawano
  • Patent number: 10439139
    Abstract: Provided are a laminate which includes an organic semiconductor film, a water-soluble resin layer, and a photosensitive resin layer and in which cracks are unlikely to occur; and a kit. The laminate includes a water-soluble resin layer containing a water-soluble resin and a photosensitive resin layer containing a photosensitive resin, which are provided in this order on an organic semiconductor film. The water-soluble resin layer and the photosensitive resin layer are adjacent to each other, the water-soluble resin is at least one of polyvinylpyrrolidone having a weight-average molecular weight of 300,000 or greater or polyvinyl alcohol having a weight-average molecular weight of 15,000 or greater, and the photosensitive resin has a weight-average molecular weight of 30,000 or greater.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: October 8, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Seiya Masuda, Yoshitaka Kamochi, Atsushi Nakamura
  • Patent number: 10414951
    Abstract: Provided are a temporary bonding material which is less likely to cause film unevenness and void formation while maintaining an adhesive force required for temporary bonding of a carrier substrate and a base material, and is easily peelable, a laminate, a method for manufacturing a laminate, a method for manufacturing a device substrate, and a method for manufacturing a semiconductor device. A temporary bonding material of the present invention includes a thermoplastic resin, a compound having a Si—O structure in an amount of 0.001% by mass or more and less than 8% by mass of the thermoplastic resin, and a solvent, in which an adhesive force of the temporary bonding material of an adhesive in which the solvent is removed from the temporary bonding material with respect to a silicon wafer is 1 to 15 N/m.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 17, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kei Fukuhara, Yoshitaka Kamochi, Mitsuru Sawano
  • Patent number: 10287458
    Abstract: A laminate includes, sequentially and adjacent to each other: a first base material; a temporary adhesion film; and a second base material, in which the tensile elastic modulus E of the temporary adhesion film at 25° C. in conformity with JIS K 7161:1994 is in a range of 25 to 2000 MPa. A base material is peeled off by fixing any one of the first base material and the second base material of the laminate at 25° C. and pulling an end portion of the other base material up in a direction perpendicular to the surface of the other base material from an interface with the temporary adhesion film at a speed of 50 mm/min, and the force applied during the pulling is measured using a force gauge and the value is 0.33 N/mm or less.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: May 14, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yoshitaka Kamochi, Yu Iwai, Mitsuru Sawano, Ichiro Koyama, Atsushi Nakamura
  • Publication number: 20180215965
    Abstract: Provided are a temporary bonding material which is less likely to cause film unevenness and void formation while maintaining an adhesive force required for temporary bonding of a carrier substrate and a base material, and is easily peelable, a laminate, a method for manufacturing a laminate, a method for manufacturing a device substrate, and a method for manufacturing a semiconductor device. A temporary bonding material of the present invention includes a thermoplastic resin, a compound having a Si—O structure in an amount of 0.001% by mass or more and less than 8% by mass of the thermoplastic resin, and a solvent, in which an adhesive force of the temporary bonding material of an adhesive in which the solvent is removed from the temporary bonding material with respect to a silicon wafer is 1 to 15 N/m.
    Type: Application
    Filed: March 22, 2018
    Publication date: August 2, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Kei FUKUHARA, Yoshitaka KAMOCHI, Mitsuru SAWANO
  • Patent number: 9929376
    Abstract: Provided are a laminate which is capable of forming an excellent organic semiconductor pattern, a kit for manufacturing an organic semiconductor, which is used to manufacture such a laminate, and a resist composition for manufacturing an organic semiconductor, which is used for the kit for manufacturing an organic semiconductor. The laminate includes an organic semiconductor film, a protective film on the organic semiconductor film, and a resist film on the protective film, in which the resist film is formed of a photosensitive resin composition that contains a photoacid generator (A) which generates an organic acid of which a pKa of the generated acid is ?1 or less and a resin (B) which reacts with an acid generated by the photoacid generator so that the rate of dissolution in a developer containing an organic solvent is decreased.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: March 27, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Kazuyoshi Mizutani, Yu Iwai, Ichiro Koyama, Yoshitaka Kamochi
  • Publication number: 20180040824
    Abstract: Provided are a laminate which includes an organic semiconductor film, a water-soluble resin layer, and a photosensitive resin layer and in which cracks are unlikely to occur; and a kit. The laminate includes a water-soluble resin layer containing a water-soluble resin and a photosensitive resin layer containing a photosensitive resin, which are provided in this order on an organic semiconductor film. The water-soluble resin layer and the photosensitive resin layer are adjacent to each other, the water-soluble resin is at least one of polyvinylpyrrolidone having a weight-average molecular weight of 300,000 or greater or polyvinyl alcohol having a weight-average molecular weight of 15,000 or greater, and the photosensitive resin has a weight-average molecular weight of 30,000 or greater.
    Type: Application
    Filed: October 19, 2017
    Publication date: February 8, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Seiya MASUDA, Yoshitaka KAMOCHI, Atsushi NAKAMURA
  • Publication number: 20180016471
    Abstract: To provide a laminate, a temporary adhesion composition, and a temporary adhesion film which are capable of making warpage less likely to occur even when a wafer is thin. Provided is a laminate including, sequentially being adjacent to each other: a first base material; a temporary adhesion film; and a second base material, in which a tensile elastic modulus E of the temporary adhesion film at 25° C. in conformity with JIS K 7161:1994 is in a range of 25 to 2000 MPa, a base material is peeled off by fixing any one of a first base material and a second base material of the laminate at 25° C. and pulling an end portion of the other base material up in a direction perpendicular to the surface of the other base material from an interface with the temporary adhesion film at a speed of 50 mm/min, and the force applied during the pulling is measured using a force gauge and the value is 0.33 N/mm or less.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 18, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Yoshitaka KAMOCHI, Yu IWAI, Mitsuru SAWANO, Ichiro KOYAMA, Atsushi NAKAMURA
  • Publication number: 20180012751
    Abstract: Provided are a kit and a laminate which are capable of suppressing residues derived from a temporary adhesive in manufacture of a semiconductor. The kit for manufacturing a semiconductor device includes a composition which contains a solvent A; a composition which contains a solvent B; and a composition which contains a solvent C, in which the kit is used when a temporary adhesive layer is formed on a first substrate using a temporary adhesive composition containing a temporary adhesive and the solvent A, at least some of an excessive amount of the temporary adhesive on the first substrate is washed using the composition containing the solvent B, a laminate is manufactured by bonding the first substrate and a second substrate through the temporary adhesive layer, one of the first substrate and the second substrate is peeled off from the laminate at a temperature of lower than 40° C.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Yoshitaka KAMOCHI, Yu IWAI, Ichiro KOYAMA, Atsushi NAKAMURA
  • Patent number: 9746771
    Abstract: There is provided a laminate body which is capable of forming an excellent pattern on an organic semiconductor. A laminate body includes at least a water-soluble resin film and a resist film formed of a chemically amplified photosensitive resin composition on a surface of an organic semiconductor film in this order, in which the chemically amplified photosensitive resin composition contains a photoacid generator which is decomposed in an amount of 80% by mole or greater when exposed to light under the condition of 100 mJ/cm2 or greater at a wavelength of 365 nm, a mask pattern is formed by an exposed portion being hardly soluble in a developer containing an organic solvent, and the formed mask pattern is used as an etching mask.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 29, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yoshitaka Kamochi, Ichiro Koyama, Yu Iwai, Atsushi Nakamura
  • Publication number: 20170198176
    Abstract: Provided are a composition which has good elastomer solubility, is thus capable of increasing a concentration of solid contents, and is capable of forming a film having excellent drying properties, surface morphology, and heat resistance, a process for producing a sheet, a sheet, a laminate, and a laminate with a device wafer. This composition includes an elastomer having a 5% thermal mass reduction temperature of 375° C. or higher when heated at an elevation rate of 20° C./min from 25° C., a solvent represented by the following General Formula (1) and having a boiling point of 160° C. or higher, and a solvent having a boiling point of lower than 120° C. In General Formula (1), R1 to R6 each independently represent a hydrogen atom or an aliphatic hydrocarbon group.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Yoshitaka KAMOCHI, Ichiro KOYAMA, Yu IWAI, Atsushi NAKAMURA, Mitsuru SAWANO
  • Patent number: 9601706
    Abstract: There is provided a resin composition for use in formation of a protective film to protect a substrate or a film formed on the substrate, from a developer containing an organic solvent to be used for development in pattern formation, and which contains two or more kinds of resins in which their main chain structures having a hydroxyl group are different, and contains water, a pattern forming method using the resin composition, and layered products comprising a substrate, an organic semiconductor film on the substrate, and a protective film comprising two or more kinds of resins in which their main chain structures having a hydroxyl group are different, on the organic semiconductor film.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: March 21, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yu Iwai, Atsushi Nakamura, Yoshitaka Kamochi, Masafumi Yoshida
  • Publication number: 20160240816
    Abstract: Provided are a laminate which is capable of forming an excellent organic semiconductor pattern, a kit for manufacturing an organic semiconductor, which is used to manufacture such a laminate, and a resist composition for manufacturing an organic semiconductor, which is used for the kit for manufacturing an organic semiconductor. The laminate includes an organic semiconductor film, a protective film on the organic semiconductor film, and a resist film on the protective film, in which the resist film is formed of a photosensitive resin composition that contains a photoacid generator (A) which generates an organic acid of which a pKa of the generated acid is ?1 or less and a resin (B) which reacts with an acid generated by the photoacid generator so that the rate of dissolution in a developer containing an organic solvent is decreased.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Kazuyoshi MIZUTANI, Yu IWAI, Ichiro KOYAMA, Yoshitaka KAMOCHI
  • Publication number: 20160170303
    Abstract: There is provided a laminate body which is capable of forming an excellent pattern on an organic semiconductor. A laminate body includes at least a water-soluble resin film and a resist film formed of a chemically amplified photosensitive resin composition on a surface of an organic semiconductor film in this order, in which the chemically amplified photosensitive resin composition contains a photoacid generator which is decomposed in an amount of 80% by mole or greater when exposed to light under the condition of 100 mJ/cm2 or greater at a wavelength of 365 nm, a mask pattern is formed by an exposed portion being hardly soluble in a developer containing an organic solvent, and the formed mask pattern is used as an etching mask.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Applicant: FUJIFILM CORPORATION
    Inventors: Yoshitaka KAMOCHI, Ichiro KOYAMA, Yu IWAI, Atsushi NAKAMURA
  • Publication number: 20160167337
    Abstract: Provided are a temporary bonding layer laminate for producing a semiconductor device, which can reliably and easily provide a temporary support for the device wafer when the device wafer is subjected to a mechanical or chemical treatment and can easily provide a release from the temporary support for the device wafer while not damaging the device wafer even after undergoing a process at a high temperature; and a composition for forming a protective layer, a composition for forming a release layer, and a kit, each of which is used for the production of the laminate. The laminate has a device wafer, a protective layer, a release layer, and a support substrate in this order, in which the protective layer is in contact only with the device wafer and the release layer, the release layer is in contact only with the protective layer and the support substrate, and the release layer contains a fluorine atom and/or a silicon atom.
    Type: Application
    Filed: February 24, 2016
    Publication date: June 16, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Ichiro KOYAMA, Yu IWAI, Yoshitaka KAMOCHI
  • Publication number: 20160168422
    Abstract: Provided are a laminate capable of providing a temporary support for a member to be treated by a strongly adhesive force when the member to be treated is subjected to a mechanical or chemical treatment, and of easily releasing the temporary support for the treated member while not damaging the treated member, in which the TTV of the treated member is excellent; a composition for forming a protective layer; a composition for forming an adhesive layer; and a kit. The laminate has, on a support (A), an adhesive layer having a softening point of 250° C. or higher (B), a protective layer (C), and a device wafer (D) in this order, in which the adhesive layer (B) is a cured product of an adhesive layer precursor and the adhesive layer precursor has a polymerizable compound (b-1).
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Yu IWAI, Ichiro KOYAMA, Yoshitaka KAMOCHI
  • Publication number: 20150221881
    Abstract: There is provided a resin composition for use in formation of a protective film to protect a substrate or a film formed on the substrate, from a developer containing an organic solvent to be used for development in pattern formation, and which contains two or more kinds of resins in which their main chain structures having a hydroxyl group are different, and contains water, a pattern forming method using the resin composition, and layered products comprising a substrate, an organic semiconductor film on the substrate, and a protective film comprising two or more kinds of resins in which their main chain structures having a hydroxyl group are different, on the organic semiconductor film.
    Type: Application
    Filed: April 17, 2015
    Publication date: August 6, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Yu IWAI, Atsushi NAKAMURA, Yoshitaka KAMOCHI, Masafumi YOSHIDA