Patents by Inventor Keita Kato

Keita Kato 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: 9086627
    Abstract: A pattern forming method contains: (i) a step of forming a bottom anti-reflective coating on a substrate by using a first resin composition (I), (ii) a step of forming a resist film on the bottom anti-reflective coating by using a second resin composition (II), (iii) a step of exposing a multi-layered film having the bottom anti-reflective coating and the resist film, and (iv) a step of developing the bottom anti-reflective coating and the resist film in the exposed multi-layered film by using an organic solvent-containing developer to form a negative pattern.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: July 21, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Keita Kato, Michihiro Shirakawa, Tadahiro Odani, Atsushi Nakamura, Hidenori Takahashi, Kaoru Iwato
  • Patent number: 9075310
    Abstract: A pattern forming method contains: (i) a step of forming a first film on a substrate by using a first resin composition (I), (ii) a step of forming a second film on the first film by using a second resin composition (II) different from the resin composition (I), (iii) a step of exposing a multi-layered film having the first film and the second film, and (iv) a step of developing the first film and the second film in the exposed multi-layered film by using an organic solvent-containing developer to form a negative pattern.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: July 7, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Michihiro Shirakawa, Keita Kato, Tadahiro Odani, Atsushi Nakamura, Hidenori Takahashi, Kaoru Iwato
  • Publication number: 20150168830
    Abstract: There is provided an actinic ray-sensitive or radiation-sensitive resin composition containing a compound represented by Formula (1): wherein R1 represents a polycyclic aromatic group or a polycyclic heterocyclic aromatic group, R2 represents a (n+2)-valent saturated hydrocarbon group. R3 represents a (m+2)-valent saturated hydrocarbon group, R4 and R5 each independently represent a substituent, Q represents a linking group containing a heteroatom, m and n each independently represent an integer of 0 to 12, when n is 2 or more, R4's may be the same or different, R4's may be linked to each other to form a non-aromatic ring together with R2, when m is 2 or more, R5's may be the same or different, and R5's may be linked to each other to form a non-aromatic ring together with R3, and X? represents a non-nucleophilic anion.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Akiyoshi GOTO, Akinori SHIBUYA, Shohei KATAOKA, Shuhei YAMAGUCHI, Tomoki MATSUDA, Keita KATO
  • Publication number: 20150147699
    Abstract: The pattern forming method of the present invention includes (i) forming a film using an actinic ray-sensitive or radiation-sensitive resin composition which contains a resin (A) which has a repeating unit including a group capable of generating a polar group by being decomposed due to an action of an acid and a repeating unit including a carboxyl group, a compound (B) which generates an acid according to irradiation with actinic rays or radiation, and a solvent (C); (ii) exposing the film using a KrF excimer laser, extreme ultraviolet rays, or an electron beam; and (iii) forming a negative tonetone pattern by developing the exposed film using a developer which includes an organic solvent.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Sou KAMIMURA, Hidenori TAKAHASHI, Keita KATO
  • Patent number: 9040231
    Abstract: A pattern forming method contains: (i) a step of forming a bottom anti-reflective coating on a substrate by using a first resin composition (I), (ii) a step of forming a resist film on the bottom anti-reflective coating by using a second resin composition (II), (iii) a step of exposing a multi-layered film having the bottom anti-reflective coating and the resist film, and (iv) a step of developing the bottom anti-reflective coating and the resist film in the exposed multi-layered film by using an organic solvent-containing developer to form a negative pattern.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: May 26, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Keita Kato, Michihiro Shirakawa, Tadahiro Odani, Atsushi Nakamura, Hidenori Takahashi, Kaoru Iwato
  • Publication number: 20150111157
    Abstract: Provided is a method of forming a pattern, including forming a film comprising an actinic-ray- or radiation-sensitive resin composition comprising, resin (A) comprising any of repeating units of general formula (I) below, which resin when acted on by an acid, decreases its solubility in a developer comprising an organic solvent, and a compound (B) expressed by any of general formulae (B-1) to (B-3) below, which compound when exposed to actinic rays or radiation, generates an acid, exposing the film to actinic rays or radiation, and developing the exposed film with a developer comprising an organic solvent to thereby obtain a negative pattern.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Keita KATO, Michihiro SHIRAKAWA, Akinori SHIBUYA, Akiyoshi GOTO, Shohei KATAOKA, Tomoki MATSUDA
  • Patent number: 8999621
    Abstract: A pattern forming method includes: (i) forming a film from a chemical amplification resist composition; (ii) exposing the film, so as to form an exposed film; and (iii) developing the exposed film by using an organic solvent-containing developer, wherein the chemical amplification resist composition contains: (A) a resin substantially insoluble in alkali; (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation; (C) a crosslinking agent; and (D) a solvent, a negative chemical amplification resist composition used in the method, and a resist film formed from the negative chemical amplification resist composition.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: April 7, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Yuichiro Enomoto, Sou Kamimura, Shinji Tarutani, Keita Kato, Kaoru Iwato
  • Patent number: 8987118
    Abstract: A method of fabricating a semiconductor device is disclosed comprising the steps of: providing a substrate having a first region, a second region and a plurality of gate electrodes which are formed on the first and second regions of the substrate; forming a mask film to expose the first region of the substrate while covering the second region of the substrate, such that the mask film has a negative lateral profile at a boundary between the first and second regions of the substrate; forming sigma trenches in the first region of the substrate by etching the first region of the substrate using the mask film and the gate electrodes as a mask; and forming an epitaxial layer in each of the sigma trenches.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: March 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyung-Rae Lee, Keita Kato, Atsushi Nakamura, Yool Kang, Suk-Koo Hong, Jae-Ho Kim, Dong-Jun Lee, Si-Young Lee
  • Patent number: 8871642
    Abstract: Provided is a method of forming a pattern, including (a) forming a chemically amplified resist composition into a film, (b) exposing the film to light, (c) developing the exposed film with a developer containing an organic solvent, and (d) rinsing the developed film with a rinse liquid containing an organic solvent, which rinse liquid has a specific gravity larger than that of the developer.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: October 28, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Yuichiro Enomoto, Shinji Tarutani, Sou Kamimura, Keita Kato, Kana Fujii
  • Patent number: 8859192
    Abstract: A negative pattern forming method, includes: (i) forming a film having a film thickness of 200 nm or more from a chemical amplification resist composition containing (A) a resin capable of increasing a polarity of the resin (A) by an action of an acid to decrease a solubility of the resin (A) for a developer containing one or more organic solvents, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, and (C) a solvent; (ii) exposing the film, so as to form an exposed film; and (iii) developing the exposed film with a developer containing one or more organic solvents.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: October 14, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Keita Kato, Kana Fujii, Sou Kamimura, Kaoru Iwato
  • Publication number: 20140248556
    Abstract: A pattern forming method including: (i) forming a film using an actinic ray-sensitive or radiation-sensitive resin composition containing a resin (A) having a repeating unit having a group generating a polar group upon being decomposed by the action of an acid, and a repeating unit having an aromatic group, a compound (B) generating an acid upon irradiation with actinic rays or radiation, and a solvent (C); (ii) exposing the film; and (iii) developing the exposed film using a developer including an organic solvent to form a negative tone pattern, wherein the resin (A) is a resin having a repeating unit having a naphthyl group, and the like, and/or the actinic ray-sensitive or radiation-sensitive resin composition contains a compound (D) having a naphthalene ring, and the like.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Keita KATO, Michihiro SHIRAKAWA, Hidenori TAKAHASHI, Sou KAMIMURA
  • Publication number: 20140234761
    Abstract: A pattern forming method contains: (i) a step of forming a first film on a substrate by using a first resin composition (I), (ii) a step of forming a second film on the first film by using a second resin composition (II) different from the resin composition (I), (iii) a step of exposing a multi-layered film having the first film and the second film, and (iv) a step of developing the first film and the second film in the exposed multi-layered film by using an organic solvent-containing developer to form a negative pattern.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Michihiro SHIRAKAWA, Keita KATO, Tadahiro ODANI, Atsushi NAKAMURA, Hidenori TAKAHASHI, Kaoru IWATO
  • Patent number: 8808965
    Abstract: A pattern forming method comprising (i) a step of forming a film from a chemical amplification resist composition (ii) a step of exposing the film, and (iii) a step of developing the exposed film by using an organic solvent-containing developer, wherein the chemical amplification resist composition contains (A) a resin containing a repeating unit having two or more hydroxyl groups, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation, (C) a crosslinking agent and (D) a solvent; a pattern formed by the pattern forming method; a chemical amplification resist composition used in the pattern forming method; and a resist film formed using the chemical amplification resist composition.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: August 19, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kaoru Iwato, Shinji Tarutani, Yuichiro Enomoto, Sou Kamimura, Keita Kato
  • Publication number: 20140227637
    Abstract: A pattern forming method contains: (i) a step of forming a bottom anti-reflective coating on a substrate by using a first resin composition (I), (ii) a step of forming a resist film on the bottom anti-reflective coating by using a second resin composition (II), (iii) a step of exposing a multi-layered film having the bottom anti-reflective coating and the resist film, and (iv) a step of developing the bottom anti-reflective coating and the resist film in the exposed multi-layered film by using an organic solvent-containing developer to form a negative pattern.
    Type: Application
    Filed: April 21, 2014
    Publication date: August 14, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Keita KATO, Michihiro SHIRAKAWA, Tadahiro ODANI, Atsushi NAKAMURA, Hidenori TAKAHASHI, Kaoru IWATO
  • Publication number: 20140205947
    Abstract: A pattern forming method includes: (i) forming a film from a chemical amplification resist composition that contains (A) a resin, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation and (C) a tertiary alcohol; (ii) exposing the film; and (iii) performing development by using a developer containing an organic solvent.
    Type: Application
    Filed: March 27, 2014
    Publication date: July 24, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Kaoru IWATO, Keita KATO
  • Patent number: 8753802
    Abstract: A pattern forming method comprising: (i) a step of forming a film from a chemical amplification resist composition, (ii) a step of exposing the film, and (iii) a step of developing the exposed film by using an organic solvent-containing developer, wherein the resist composition contains: (A) a resin, (B) a nonionic compound capable of generating an acid upon irradiation with an actinic ray or radiation, (C) a crosslinking agent, and (D) a solvent.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: June 17, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Keita Kato, Shinji Tarutani, Sou Kamimura, Yuichiro Enomoto, Kaoru Iwato
  • Patent number: 8722319
    Abstract: A pattern forming method includes: (i) forming a film from a chemical amplification resist composition that contains (A) a resin, (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation and (C) a tertiary alcohol; (ii) exposing the film; and (iii) performing development by using a developer containing an organic solvent.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: May 13, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kaoru Iwato, Keita Kato
  • Publication number: 20140127629
    Abstract: Provided is a method of forming pattern including (a) forming a chemically amplified resist composition into a film, (b) exposing the film to light, and (c) developing the exposed film with a developer containing a first organic solvent, wherein in the developer, particles each having a diameter of 0.3 ?m or greater amount to a density of 30 particles/ml or less.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Keita KATO, Sou KAMIMURA, Yuichiro ENOMOTO, Kaoru IWATO, Shohei KATAOKA, Shoichi SAITOH
  • Publication number: 20140124834
    Abstract: A method of fabricating a semiconductor device is disclosed comprising the steps of: providing a substrate having a first region, a second region and a plurality of gate electrodes which are formed on the first and second regions of the substrate; forming a mask film to expose the first region of the substrate while covering the second region of the substrate, such that the mask film has a negative lateral profile at a boundary between the first and second regions of the substrate; forming sigma trenches in the first region of the substrate by etching the first region of the substrate using the mask film and the gate electrodes as a mask; and forming an epitaxial layer in each of the sigma trenches.
    Type: Application
    Filed: September 4, 2013
    Publication date: May 8, 2014
    Applicants: FUJIFILM CORPORATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyung-Rae Lee, Keita Kato, Atsushi Nakamura, Yool Kang, Suk-Koo Hong, Jae-Ho Kim, Dong-Jun Lee, Si-Young Lee
  • Publication number: 20140113223
    Abstract: There is provided a pattern forming method comprising: (i) a step of forming a first film on a substrate by using a first resin composition (I), (ii) a step of forming a second film on the first film by using a second resin composition (II) different from the resin composition (I), (iii) a step of exposing a multi-layered film having the first film and the second film, and (iv) a step of developing the first film and the second film in the exposed multi-layered film by using an organic solvent-containing developer to form a negative pattern.
    Type: Application
    Filed: December 27, 2013
    Publication date: April 24, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Keita KATO, Michihiro SHIRAKAWA, Tadahiro ODANI, Atsushi NAKAMURA, Hidenori TAKAHASHI, Kaoru IWATO