Patents by Inventor Shuhei Shigaki

Shuhei Shigaki 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: 9632414
    Abstract: A coating liquid to be applied to resist pattern, which can be used in place of the conventional rinsing liquid. A coating liquid to be applied to a resist pattern having a polymer having a structural unit of the following Formula (1) and a structural unit of the following Formula (2), and a weight average molecular weight of 500 to 3,500, and a solvent containing water as a main component (where R1 is a C1-8 organic group).
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: April 25, 2017
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yasushi Sakaida, Rikimaru Sakamoto, Shuhei Shigaki
  • Patent number: 9627217
    Abstract: There is provided a composition for forming an EUV resist underlayer film which shows a good resit form. A resist underlayer film-forming composition for EUV lithography, including: polysiloxane (A) containing a hydrolyzed condensate of hydrolyzable silane (a); and hydrolyzable silane compound (b) having a sulfonamide structure, a carboxylic acid amide structure, a urea structure, or an isocyanuric acid structure. A resist underlayer film-forming composition for EUV lithography, including: polysiloxane (B) containing a hydrolyzed condensate of hydrolyzable silane (a) and hydrolyzable silane compound (b) having a sulfonamide structure, a carboxylic acid amide structure, a urea structure, or an isocyanuric acid structure. The polysiloxane (A) is preferably a co-hydrolyzed condensate of a tetraalkoxysilane, an alkyltrialkoxysilane and an aryltrialkoxysilane.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: April 18, 2017
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Shuhei Shigaki, Hiroaki Yaguchi, Wataru Shibayama, Rikimaru Sakamoto, BangChing Ho
  • Publication number: 20160363867
    Abstract: There is provided a polymer-containing coating liquid which is applied to a resist pattern and which is used in place of a conventional rinsing liquid. A coating liquid that is applied to a resist pattern comprising a polymer having a structural unit of Formula (1): (wherein R1 is a C1-12 organic group, and X is an organic group of Formula (2): (wherein R2 and R3 are each independently a linear or branched alkylene group having a carbon atom number of 1 to 3, R2 is bonded to an oxygen atom in Formula (1), R4 is a C1-4 alkoxy group, an allyloxy group, or a hydroxy group, and p is 0, 1, or 2)), and a solvent containing water and/or alcohols.
    Type: Application
    Filed: February 3, 2015
    Publication date: December 15, 2016
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Shuhei Shigaki, Yasushi Sakaida, Rikimaru Sakamoto
  • Publication number: 20160347965
    Abstract: A film with reduced formation of an edge reservoir at a periphery of a film in which the edge reservoir causes an unnecessary residue that cannot be removed by an etching process, and a method for forming the film. A film forming composition for use in a lithography process includes a surfactant containing a polymer and an oligomer having a C3-5 perfluoroalkyl partial structure. The perfluoroalkyl partial structure may further include an alkyl partial structure. The surfactant is contained in an amount of 0.0001% by mass to 1.5% by mass based on the total solid content of the film forming composition. The film forming composition further includes a coating film resin, the coating film resin is a novolac resin, a condensation epoxy resin, a (meth)acylic resin, a polyether-based resin, or a silicon-containing resin, etc. The formed film can be used as a resist underlayer film or a resist overlayer film.
    Type: Application
    Filed: January 30, 2015
    Publication date: December 1, 2016
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Makiko UMEZAKI, Ryo KARASAWA, Shuhei SHIGAKI, Ryuta MIZUOCHI
  • Publication number: 20160179010
    Abstract: A coating liquid to be applied to resist pattern, which can be used in place of the conventional rinsing liquid. A coating liquid to be applied to a resist pattern having a polymer having a structural unit of the following Formula (1) and a structural unit of the following Formula (2), and a weight average molecular weight of 500 to 3,500, and a solvent containing water as a main component (where R1 is a C1-8 organic group).
    Type: Application
    Filed: July 22, 2014
    Publication date: June 23, 2016
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yasushi SAKAIDA, Rikimaru SAKAMOTO, Shuhei SHIGAKI
  • Patent number: 9337052
    Abstract: A resist underlayer film forming composition for EUV lithography, comprising: as a silane, a hydrolyzable silane, a hydrolyzate of the hydrolyzable silane, a hydrolysis condensate of the hydrolyzable silane, or a mixture of any of the hydrolyzable silane, the hydrolyzate, and the hydrolysis condensate, wherein the hydrolyzable silane includes a combination of tetramethoxysilane, an alkyltrimethoxysilane, and an aryltrialkoxysilane, and the aryltrialkoxysilane is represented by formula (1): (R2)n2—R1—(CH2)n1—Si(X)3??Formula (1) In formula (1), R1 is an aromatic ring consisting of a benzene ring or a naphthalene ring or a ring including an isocyanuric acid structure, R2 is a substituent replacing a hydrogen atom on the aromatic ring and is a halogen atom or a C1-10 alkoxy group, and X is a C1-10 alkoxy group, a C2-10 acyloxy group, or a halogen group.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: May 10, 2016
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Shuhei Shigaki, Hiroaki Yaguchi, Rikimaru Sakamoto, Bang-ching Ho
  • Patent number: 9290623
    Abstract: A resist underlayer film that can be used as a hardmask. A resist underlayer film forming composition for lithography, includes: as a silane, a hydrolyzable silane, a hydrolysis product thereof, or a hydrolysis-condensation product thereof, wherein the hydrolyzable silane includes a hydrolyzable silane of Formula (1) or a hydrolyzable silane containing a combination of a hydrolyzable silane of Formula (1) with a hydrolyzable silane of Formula (2) in a content of less than 50% by mole in all silanes; Formula (1): R1aR2bSi(R3)4-(a+b) wherein R1 is an organic group containing Formula (1-1), Formula (1-2), or Formula (1-3): a is 1 and b is an integer of 0 to 2, where a+b is an integer of 1 to 3; Formula (2): R4aR5bSi(R6)4-(a+b) wherein, R4 is an organic group containing Formula (2-1), Formula (2-2), or Formula (2-3): a is 1 and b is an integer of 0 to 2, where a+b is an integer of 1 to 3.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 22, 2016
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yuta Kanno, Daisuke Sakuma, Kenji Takase, Makoto Nakajima, Shuhei Shigaki
  • Publication number: 20150322212
    Abstract: A resist underlayer film that can be used as a hardmask. A resist underlayer film forming composition for lithography, includes: as a silane, a hydrolyzable silane, a hydrolysis product thereof, or a hydrolysis-condensation product thereof, wherein the hydrolyzable silane includes a hydrolyzable silane of Formula (1) or a hydrolyzable silane containing a combination of a hydrolyzable silane of Formula (1) with a hydrolyzable silane of Formula (2) in a content of less than 50% by mole in all silanes; Formula (1): R1aR2bSi(R3)4-(a+b) wherein R1 is an organic group containing Formula (1-1), Formula (1-2), or Formula (1-3): a is 1 and b is an integer of 0 to 2, where a+b is an integer of 1 to 3; Formula (2): R4aR5bSi(R6)4-(a+b) wherein, R4 is an organic group containing Formula (2-1), Formula (2-2), or Formula (2-3): a is 1 and b is an integer of 0 to 2, where a+b is an integer of 1 to 3.
    Type: Application
    Filed: December 17, 2013
    Publication date: November 12, 2015
    Inventors: Yuta KANNO, Daisuke SAKUMA, Kenji TAKASE, Makoto NAKAJIMA, Shuhei SHIGAKI
  • Publication number: 20150291998
    Abstract: The present invention is related to a method for evaluation of drug efficacy of a medicine having a therapeutic or preventive effect against a disease related to EL activity wherein phosphatidylinositol or lysophosphatidylinositol is used as an indicator. The present invention is also related to a method for screening an inhibitor of EL activity using phosphatidylinositol and a kit for use in the method.
    Type: Application
    Filed: November 5, 2013
    Publication date: October 15, 2015
    Applicant: SHIONOGI & CO., LTD.
    Inventors: Takashi Ono, Atsuko Yamamoto, Shuhei Shigaki
  • Publication number: 20150210829
    Abstract: A resist underlayer film-forming composition for EUV lithography showing good resist shape; including: a hydrolyzable organosilane, a hydrolyzed product thereof, or a hydrolyzed condensate thereof, as a silane; and a salt of a sulfonic acid ion containing a hydrocarbon group with an onium ion. The hydrolyzable organosilane includes at least one organic silicon compound selected from the group consisting of compounds of Formula (1): R1aSi(R2)4?a ??Formula (1) and compounds of Formula (2): R3cSi(R4)3?c2Yb ??Formula (2) a hydrolyzed product thereof, or a hydrolyzed condensate thereof.
    Type: Application
    Filed: July 29, 2013
    Publication date: July 30, 2015
    Inventors: Wataru Shibayama, Shuhei Shigaki, Rikimaru Sakamoto
  • Patent number: 9093279
    Abstract: A thin film forming composition for forming resist underlayer film useable in the production of a semiconductor device, and a resist upper layer film absorbs undesirable UV light with a thin film as an upper layer of the EUV resist before undesirable UV light reaches the EUV resist layer in EUV lithography, an underlayer film (hardmask) for an EUV resist, a reverse material, and an underlayer film for a resist for solvent development. The thin film forming composition useable together with a resist in a lithography process, comprising a mixture of titanium compound (A) selected from: R0aTi(R1)(4-a)??Formula (1) a titanium chelate compound, and a hydrolyzable titanium dimer, and a silicon compound (B): R2a?R3bSi(R4)4-(a?+b)??Formula (2) a hydrolysis product, or a hydrolysis-condensation product of the mixture, wherein the number of moles of Ti atom is 50% to 90% relative to the total moles in terms of Ti atom and Si atoms in the composition.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: July 28, 2015
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Makoto Nakajima, Yuta Kanno, Satoshi Takeda, Yasushi Sakaida, Shuhei Shigaki
  • Publication number: 20150166941
    Abstract: There is provided a cleaning fluid that effectively removes metal impurities and the like existing on a portion through which a chemical solution for lithography passes, before causing the chemical solution to pass through a semiconductor manufacturing equipment in a lithography process, in order to prevent defects caused by the metal impurities and the like found on a semiconductor substrate after forming a resist pattern or after processing a semiconductor substrate in a process for manufacturing semiconductor device. A cleaning fluid to clean a portion through which a chemical solution for lithography passes in a semiconductor manufacturing equipment used in a lithography process for manufacturing semiconductors, including: an inorganic acid; water; and a hydrophilic organic solvent. In the cleaning fluid, the concentration of the inorganic acid is preferably 0.0001% by mass to 60% by mass based on a total mass of the cleaning fluid.
    Type: Application
    Filed: July 8, 2013
    Publication date: June 18, 2015
    Inventors: Suguru Sassa, Shuhei Shigaki
  • Publication number: 20150079792
    Abstract: There is provided a composition for forming an EUV resist underlayer film which shows a good resit form. A resist underlayer film-forming composition for EUV lithography, including: polysiloxane (A) containing a hydrolyzed condensate of hydrolyzable silane (a); and hydrolyzable silane compound (b) having a sulfonamide structure, a carboxylic acid amide structure, a urea structure, or an isocyanuric acid structure. A resist underlayer film-forming composition for EUV lithography, including: polysiloxane (B) containing a hydrolyzed condensate of hydrolyzable silane (a) and hydrolyzable silane compound (b) having a sulfonamide structure, a carboxylic acid amide structure, a urea structure, or an isocyanuric acid structure. The polysiloxane (A) is preferably a co-hydrolyzed condensate of a tetraalkoxysilane, an alkyltrialkoxysilane and an aryltrialkoxysilane.
    Type: Application
    Filed: February 22, 2013
    Publication date: March 19, 2015
    Inventors: Shuhei Shigaki, Hiroaki Yaguchi, Wataru Shibayama, Rikimaru Sakamoto, BangChing Ho
  • Publication number: 20140232018
    Abstract: A resist underlayer film forming composition for EUV lithography, comprising: as a silane, a hydrolyzable silane, a hydrolyzate of the hydrolyzable silane, a hydrolysis condensate of the hydrolyzable silane, or a mixture of any of the hydrolyzable silane, the hydrolyzate, and the hydrolysis condensate, wherein the hydrolyzable silane includes a combination of tetramethoxysilane, an alkyltrimethoxysilane, and an aryltrialkoxysilane, and the aryltrialkoxysilane is represented by formula (1): (R2)n2—R1—(CH2)n1—Si(X)3??Formula (1) In formula (1), R1 is an aromatic ring consisting of a benzene ring or a naphthalene ring or a ring including an isocyanuric acid structure, R2 is a substituent replacing a hydrogen atom on the aromatic ring and is a halogen atom or a C1-10 alkoxy group, and X is a C1-10 alkoxy group, a C2-10 acyloxy group, or a halogen group.
    Type: Application
    Filed: October 2, 2012
    Publication date: August 21, 2014
    Inventors: Shuhei Shigaki, Hiroaki Yaguchi, Rikimaru Sakamoto, Bang-ching Ho
  • Publication number: 20140120730
    Abstract: A thin film forming composition for forming resist underlayer film useable in the production of a semiconductor device, and a resist upper layer film absorbs undesirable UV light with a thin film as an upper layer of the EUV resist before undesirable UV light reaches the EUV resist layer in EUV lithography, an underlayer film (hardmask) for an EUV resist, a reverse material, and an underlayer film for a resist for solvent development. The thin film forming composition useable together with a resist in a lithography process, comprising a mixture of titanium compound (A) selected from: R0aTi(R1)(4?a)??Formula (1) a titanium chelate compound, and a hydrolyzable titanium dimer, and a silicon compound (B): R2a?R3bSi(R4)4?(a?+b)??Formula (2) a hydrolysis product, or a hydrolysis-condensation product of the mixture, wherein the number of moles of Ti atom is 50% to 90% relative to the total moles in terms of Ti atom and Si atoms in the composition.
    Type: Application
    Filed: July 20, 2012
    Publication date: May 1, 2014
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Makoto Nakajima, Yuta Kanno, Satoshi Takeda, Yasushi Sakaida, Shuhei Shigaki