Patents by Inventor Yasuhiro Yoshii

Yasuhiro Yoshii 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: 11822240
    Abstract: A resist composition that generates an acid upon exposure and whose solubility in a developing solution is changed by action of an acid, the resist composition containing a base material component whose solubility in a developing solution is changed by action of an acid, and a compound represented by General Formula (e1) in which Rd01 represents a monovalent organic group and Rd02 represents a single bond or a divalent linking group
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: November 21, 2023
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Yasuhiro Yoshii, Yosuke Suzuki, Yoichi Hori, Takahiro Kojima, Mari Murata
  • Patent number: 11650497
    Abstract: A resist composition which generates an acid upon exposure and whose solubility in a developing solution is changed due to an action of the acid, the resist composition including a base material component whose solubility in a developing solution is changed due to the action of an acid, an acid generator component which generates an acid upon exposure, and an organic acid which contains at least one carboxy group, in which the acid generator component contains a compound represented by formula (b1) in which R2011 to R2031 represent an aryl group, an alkyl group, or an alkenyl group. R2011 to R2031 have a total of four or more substituents containing fluorine atoms, Xn? represent an n-valent anion, and n represents an integer of 1 or greater.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: May 16, 2023
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Yasuhiro Yoshii, Yoichi Hori
  • Patent number: 11586111
    Abstract: A resist composition including a compound (D0) represented by general formula (d0) and a resin component (A1) has a structural unit (a0) in which a compound represented by general formula (a0-1) has a polymerizable group within the W1 portion converted into a main chain (in formula (d0), Rd01 represents a fluorine atom or a fluorinated alkyl group; In formula (a0-1), W1 represents a polymerizable group-containing group; Ct represents a tertiary carbon atom, and the ?-position of Ct is a carbon atom which constitutes a carbon-carbon unsaturated bond; R11 represents an aromatic hydrocarbon group; or a chain hydrocarbon group; R12 and R13 each independently represents a chain hydrocarbon group, or R12 and R13 are mutually bonded to form a cyclic group).
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: February 21, 2023
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Yasuhiro Yoshii, Masahito Yahagi, Yoichi Hori, Takahiro Kojima
  • Patent number: 11392033
    Abstract: A resist composition including a resin component whose solubility in a developing solution is changed due to the action of the acid, in which the resin component has a constitutional unit derived from a compound represented by Formula (a0-1) and a constitutional unit containing an acid decomposable group whose polarity is increased due to the action of the acid. In the formula, W represents a polymerizable group-containing group, Ya0 represents a carbon atom, Xa0 represents a group that forms a monocyclic aliphatic hydrocarbon group together with Ya0, some or all hydrogen atoms in the monocyclic aliphatic hydrocarbon group may be substituted with substituents, and Ra00 represents an aromatic hydrocarbon group which may have a substituent.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: July 19, 2022
    Assignee: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Hitoshi Yamano, Takahiro Kojima, Yoichi Hori, Yasuhiro Yoshii, Masahito Yahagi
  • Patent number: 11275306
    Abstract: A resist composition including a compound (D0) formed of an anion moiety and a cation moiety which is represented by Formula (d0), and a resin component (A1) which has a constitutional unit (a0) obtained from a compound represented by Formula (a0-1), in which a polymerizable group at a W portion is converted into a main chain, and a constitutional unit (a1) containing an acid decomposable group whose polarity is increased due to an action of an acid. In Formula (d0), Rd0 represents a substituent and n represents an integer of 2 or greater. In Formula (a0-1), Wax0 represents an (nax0+1)-valent aromatic hydrocarbon group which may have a substituent.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: March 15, 2022
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Takahiro Kojima, Yasuhiro Yoshii, Masahito Yahagi, Yoichi Hori
  • Patent number: 11187981
    Abstract: A resist composition including a resin component whose solubility in a developing solution is changed due to an action of an acid, in which the resin composition has a constitutional unit derived from a compound containing a chain-like aliphatic acid dissociable group or a monocyclic aliphatic acid dissociable group and a constitutional unit derived from a compound containing an aromatic hydrocarbon group-containing acid dissociable group.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: November 30, 2021
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Yoichi Hori, Yasuhiro Yoshii, Masahito Yahagi, Hitoshi Yamano, Takahiro Kojima
  • Publication number: 20210200087
    Abstract: A resist composition containing a resin component exhibiting changed solubility in a developing solution under action of acid, and a compound represented by General Formula (d0), the resin component containing a polymer compound having a constitutional unit having a monocyclic alicyclic hydrocarbon group, Rd0 represents a monovalent organic group; Xd0 represents —O—, —C(?O)—, —O—C(?O)—, —C(?O)—O—, —S—, or —SO2—; Ydx0 represents a single bond or the like; Rd001 to Rd004 represents a hydrogen atom or the like; and Mm+ represents an m-valent organic cation
    Type: Application
    Filed: December 17, 2020
    Publication date: July 1, 2021
    Inventors: Yoichi HORI, Yasuhiro YOSHII, Yosuke SUZUKI, Takahiro KOJIMA, Mari MURATA
  • Publication number: 20210200086
    Abstract: A resist composition containing a compound (D0) represented by General Formula (d0) and a polymer compound having a constitutional unit (a01) containing an acid-decomposable group having a polarity which is increased by action of an acid and a constitutional unit (a02) derived from a compound represented by General Formula (a02-1), and a solid content concentration is 5% by mass or less. In General Formula (d0), Rd0 represents a monovalent organic group, Xd0 represents —O— or the like, Yd0 represents a single bond, and Mm+ represents an m-valent organic cation.
    Type: Application
    Filed: December 16, 2020
    Publication date: July 1, 2021
    Inventors: Mari MURATA, Takahiro KOJIMA, Yasuhiro YOSHII, Yosuke SUZUKI, Yoichi HORI
  • Publication number: 20210191262
    Abstract: A resist composition is provided that generates an acid upon exposure and whose solubility in a developing solution is changed by action of an acid, the resist composition containing a base material component whose solubility in a developing solution is changed by action of an acid, and a compound represented by General Formula (e1) in which Rd01 represents a monovalent organic group and Rd02 represents a single bond or a divalent linking group
    Type: Application
    Filed: December 14, 2020
    Publication date: June 24, 2021
    Inventors: Yasuhiro YOSHII, Yosuke SUZUKI, Yoichi HORI, Takahiro KOJIMA, Mari MURATA
  • Publication number: 20210165324
    Abstract: A resist composition containing: a base material component exhibiting changed solubility in a developing solution under action of acid; an acid generator component generating an acid upon exposure; and a photodegradable base controlling diffusion of the acid generated from the acid generator component upon exposure, in which the photodegradable base contains a compound represented by General Formula (d0), in which R011 represents an aryl group having an electron-withdrawing group, R021 and R022 each independently represent an aryl group which may have a substituent, Z represents a sulfur atom, an oxygen atom, a carbonyl group, or a single bond, and X? represents a counter anion
    Type: Application
    Filed: November 24, 2020
    Publication date: June 3, 2021
    Inventors: Yosuke SUZUKI, Takahiro KOJIMA, Yasuhiro YOSHII, Yoichi HORI, Mari MURATA
  • Publication number: 20200183275
    Abstract: A resist composition including a compound (D0) formed of an anion moiety and a cation moiety which is represented by Formula (d0), and a resin component (A1) which has a constitutional unit (a0) obtained from a compound represented by Formula (a0-1), in which a polymerizable group at a W portion is converted into a main chain, and a constitutional unit (a1) containing an acid decomposable group whose polarity is increased due to an action of an acid. In Formula (d0), Rd0 represents a substituent and n represents an integer of 2 or greater. In Formula (a0-1), Wax0 represents an (nax0+1)-valent aromatic hydrocarbon group which may have a substituent.
    Type: Application
    Filed: November 18, 2019
    Publication date: June 11, 2020
    Inventors: Takahiro KOJIMA, Yasuhiro YOSHII, Masahito YAHAGI, Yoichi HORI
  • Publication number: 20200174369
    Abstract: A resist composition including a compound (D0) represented by general formula (d0) and a resin component (A1) has a structural unit (a0) in which a compound represented by general formula (a0-1) has a polymerizable group within the W1 portion converted into a main chain (in formula (d0), Rd01 represents a fluorine atom or a fluorinated alkyl group; In formula (a0-1), W1 represents a polymerizable group-containing group; Ct represents a tertiary carbon atom, and the ?-position of Ct is a carbon atom which constitutes a carbon-carbon unsaturated bond; R11 represents an aromatic hydrocarbon group; or a chain hydrocarbon group; R12 and R13 each independently represents a chain hydrocarbon group, or R12 and R13 are mutually bonded to form a cyclic group).
    Type: Application
    Filed: December 2, 2019
    Publication date: June 4, 2020
    Inventors: Yasuhiro YOSHII, Masahito YAHAGI, Yoichi HORI, Takahiro KOJIMA
  • Publication number: 20200166837
    Abstract: A resist composition which generates an acid upon exposure and whose solubility in a developing solution is changed due to an action of the acid, the resist composition including a base material component whose solubility in a developing solution is changed due to the action of an acid, an acid generator component which generates an acid upon exposure, and an organic acid which contains at least one carboxy group, in which the acid generator component contains a compound represented by formula (b1) in which R2011 to R2031 represent an aryl group, an alkyl group, or an alkenyl group. R2011 to R2031 have a total of four or more substituents containing fluorine atoms, Xn? represent an n-valent anion, and n represents an integer of 1 or greater.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 28, 2020
    Inventors: Yasuhiro YOSHII, Yoichi HORI
  • Publication number: 20200150531
    Abstract: A resist composition including a resin component having a structural unit derived from a compound represented by general formula (a0-1) and a structural unit containing an acid dissociable group which exhibits increased polarity by the action of acid, and an organic solvent including a component (S1) and a component (S2), the amount of the component (S1) in the organic solvent is more than 50% by weight (W1 represents a polymerizable group-containing group; Yax1 represents a single bond or a (nax1+1)-valent linking group; and nax1 represents an integer of 1 to 3): component (S1): propylene glycol monoalkyl ether component (S2): at least one of propylene glycol monoalkylether carboxylate, cycloalkanone, alkyl lactate, lactone, diacetone alcohol, and 2-hydroxyisobutyric acid alkyl ester
    Type: Application
    Filed: November 7, 2019
    Publication date: May 14, 2020
    Inventors: Yoichi HORI, Yasuhiro YOSHII, Masahito YAHAGI, Takahiro KOJIMA, Akira MATSUYAMA
  • Publication number: 20190204738
    Abstract: A resist composition including a resin component whose solubility in a developing solution is changed due to the action of the acid, in which the resin component has a constitutional unit derived from a compound represented by Formula (a0-1) and a constitutional unit containing an acid decomposable group whose polarity is increased due to the action of the acid. In the formula, W represents a polymerizable group-containing group, Ya0 represents a carbon atom, Xa0 represents a group that forms a monocyclic aliphatic hydrocarbon group together with Ya0, some or all hydrogen atoms in the monocyclic aliphatic hydrocarbon group may be substituted with substituents, and Ra00 represents an aromatic hydrocarbon group which may have a substituent.
    Type: Application
    Filed: December 17, 2018
    Publication date: July 4, 2019
    Inventors: Hitoshi YAMANO, Takahiro KOJIMA, Yoichi HORI, Yasuhiro YOSHII, Masahito YAHAGI
  • Publication number: 20190196330
    Abstract: A resist composition including a resin component whose solubility in a developing solution is changed due to an action of an acid, in which the resin composition has a constitutional unit derived from a compound containing a chain-like aliphatic acid dissociable group or a monocyclic aliphatic acid dissociable group and a constitutional unit derived from a compound containing an aromatic hydrocarbon group-containing acid dissociable group.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 27, 2019
    Inventors: Yoichi HORI, Yasuhiro YOSHII, Masahito YAHAGI, Hitoshi YAMANO, Takahiro KOJIMA
  • Patent number: 9040220
    Abstract: A resist composition including a base component which exhibits changed solubility in an alkali developing solution under action of acid and an acid-generator component which generates acid upon exposure, the acid-generator including an acid generator consisting of a compound represented by general formula (b1-1) shown below: In which RX represents a hydrocarbon group which may have a substituent exclusive of a nitrogen atom; each of Q2 and Q3 independently represents a single bond or a divalent linkage group; Y1 represents an alkylene group or fluorinated alkyl group of 1 to 4 carbon atoms; and Z+ represents an organic cation exclusive of an ion represented by general formula (w-1).
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: May 26, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hideo Hada, Yoshiyuki Utsumi, Keita Ishiduka, Kensuke Matsuzawa, Fumitake Kaneko, Kyoko Ohshita, Hiroaki Shimizu, Yasuhiro Yoshii
  • Patent number: 9034556
    Abstract: A resist composition including a base component (A) which exhibits changed solubility in an alkali developing solution under action of acid and an acid-generator component (B) which generates acid upon exposure, the acid-generator component (B) including an acid generator (B1) consisting of a compound represented by general formula (b1-1) shown below: wherein RX represents a hydrocarbon group which may have a substituent exclusive of a nitrogen atom; each of Q2 and Q3 independently represents a single bond or a divalent linkage group; Y1 represents an alkylene group or fluorinated alkyl group of 1 to 4 carbon atoms; and Z+ represents an organic cation exclusive of an ion represented by general formula (w-1).
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 19, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hideo Hada, Yoshiyuki Utsumi, Keita Ishiduka, Kensuke Matsuzawa, Fumitake Kaneko, Kyoko Ohshita, Hiroaki Shimizu, Yasuhiro Yoshii
  • Patent number: 8900788
    Abstract: A resist composition for immersion exposure, including: a base component (A) which exhibits changed solubility in an alkali developing solution under action of an acid, and contains no structural unit (c1) represented by the general formula (c1-1) shown below; an acid generator component (B) which generates an acid upon exposure; and a fluorine-containing resin component (C) which contains the structural unit (c1) (in the formula (c1-1), R represents a hydrogen atom, a lower alkyl group, a halogen atom, or a halogenated lower alkyl group; Rf represents a fluorinated alkyl group; and Y0 represents an alkylene group).
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: December 2, 2014
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Yoshiyuki Utsumi, Yasuhiro Yoshii
  • Patent number: 8877432
    Abstract: There are provided a method of forming a resist pattern in which a resist pattern is formed on top of a substrate by using a chemically amplified resist composition and conducting patterning two or more times, the method being capable of reducing the extent of damage, caused by the second patterning, imposed upon the first resist pattern that is formed by the first patterning; as well as a resist composition that is useful for forming the first resist pattern in this method of forming a resist pattern. The method includes forming of a first resist pattern using a resist composition containing a thermal base generator as a chemically amplified resist composition during first patterning, and then conducting a hard bake for baking the first resist pattern under a bake condition such that a base is generated from the thermal base generator, prior to the second patterning.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: November 4, 2014
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Jiro Yokoya, Tsuyoshi Nakamura, Masaru Takeshita, Yasuhiro Yoshii, Hirokuni Saito