Patents Examined by John Chu
  • Patent number: 9040213
    Abstract: Disclosed is a positive photosensitive resin composition that includes (A) an alkali soluble resin prepared by a phosphorous-containing diamine represented by the following Chemical Formula 1, (B) a photosensitive diazoquinone compound, and (C) a solvent. A photosensitive resin film prepared using the same and a semiconductor device including the photosensitive resin film are also disclosed. In Chemical Formula 1, each substituent is the same as defined in the detailed description.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: May 26, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Hyun-Yong Cho, Sang-Soo Kim, Eun-Kyung Yoon, Jong-Hwa Lee, Jun-Ho Lee, Eun-Ha Hwang, Ji-Yun Kwon, Jin-Young Lee
  • 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: 9023559
    Abstract: Disclosed is a positive photosensitive resin composition that includes (A) an alkali soluble resin; (B) a novolac resin including a repeating unit represented by Chemical Formula 6; (C) a photosensitive diazoquinone compound; (D) a silane compound; and (E) a solvent, a photosensitive resin film prepared by using the positive photosensitive resin composition, and a semiconductor device including the photosensitive resin film.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: May 5, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Jong-Hwa Lee, Hyun-Yong Cho, Mi-Ra Im, Hwan-Sung Cheon, Min-Kook Chung, Ji-Young Jeong, Myoung-Hwan Cha
  • Patent number: 9023590
    Abstract: The invention discloses a deep-ultraviolet chemically-amplified positive photoresist. The deep-ultraviolet chemically-amplified positive photoresist according to one embodiment of the invention includes a cyclopentenyl pimaric acid, a divinyl ether, a photoacid generator and an organic solvent. The deep-ultraviolet chemically-amplified positive photoresist according to the invention has a good sensitivity and a good transparency.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 5, 2015
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Lu Liu, Jianshe Xue, Guanbao Hui
  • Patent number: 9023581
    Abstract: A resist composition which can form a very fine resist pattern with excellent lithography properties, a new polymeric compound useful for the resist composition, and a compound useful as a monomer for the polymeric compound. The resist composition contains a polymeric compound containing a structural unit (a0) represented by general formula (a0) shown below. In the formula (a0), A is an anion represented by the general formula (1) or (2).
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: May 5, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd
    Inventors: Akiya Kawaue, Kazushige Dohtani, Yoshiyuki Utsumi, Jun Iwashita, Kenri Konno, Daiju Shiono, Daichi Takaki
  • Patent number: 9017931
    Abstract: A negative pattern is formed by coating a resist composition comprising a polymer comprising recurring units having a tertiary ester type acid labile group having a plurality of methyl or ethyl groups on alicycle and an acid generator onto a substrate, prebaking, exposing to high-energy radiation, baking, and developing in an organic solvent developer so that the unexposed region of resist film is dissolved away and the exposed region of resist film is not dissolved. The resist composition exhibits a high dissolution contrast during organic solvent development and forms a fine hole or trench pattern of dimensional uniformity.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: April 28, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Koji Hasegawa, Jun Hatakeyama, Masayoshi Sagehashi, Teppei Adachi
  • Patent number: 9012122
    Abstract: A modified novolak phenolic resin is obtained by reacting a novolak phenolic resin containing at least 50 wt % of p-cresol with a crosslinker. This method increases the molecular weight of the existing novolak phenolic resin containing at least 50 wt % of p-cresol to such a level that the resulting modified novolak phenolic resin has heat resistance enough for the photoresist application.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: April 21, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yoshinori Hirano, Hideyoshi Yanagisawa
  • Patent number: 9005872
    Abstract: A resist composition including a base component (A) which exhibits changed solubility in a developing solution under action of acid, a basic-compound component (C) and an acid-generator component (B) which generates acid upon exposure, the component (B) including a compound represented by formula (b1), and the component (C) including at least one compound represented by formulas (c1) to (c3) (wherein Z1 represents a ring skeleton-containing hydrocarbon group, Q1 represents a divalent linking group containing oxygen, Y1 represents a fluorinated alkylene group, M+ represents an organic cation, R1 represents a fluorinated alkyl group or a hydrocarbon group, L1+ and L2+ represents a sulfonium or an iodonium, Z2 represents a hydrogen atom or a hydrocarbon group, Y2 represents a single bond or a divalent linking group containing no fluorine, R2 represents an organic group, Y3 represents an alkylene group or an arylene group; and Rf represents a fluorine-containing hydrocarbon group).
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: April 14, 2015
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Hiroaki Shimizu, Sho Abe, Hideto Nito
  • 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: 8993210
    Abstract: A salt represented by the formula (I): wherein R1 and R2 each independently represent a fluorine atom or a C1-C6 perfluoroalkyl group, X1 represents a C1-C17 divalent saturated hydrocarbon group which can have one or more fluorine atoms and in which one or more —CH2— can be replaced by —O— or —CO—, R3 represents a group having a cyclic ether structure, and Z1+ represents an organic cation.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: March 31, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Koji Ichikawa, Hiromu Sakamoto
  • Patent number: 8993212
    Abstract: A resist composition according to the present invention includes at least a base resin, a photoacid generator and a solvent, wherein the photoacid generator comprises a fluorine-containing sulfonic acid salt of the following general formula (4). In the formula, X independently represents a hydrogen atom or a fluorine atom; n represents an integer of 1 to 6; R1 represents a hydrogen atom, or an alkyl, alkenyl, oxoalkyl, aryl or aralkyl group; any of hydrogen atoms on carbons in R1 may be substituted with a substituent; R2 represents RAO or RBRCN; and A represents a divalent group. This fluorine-containing sulfonic acid salt can serve as a photoacid generator having high solubility in a resist solvent and thus can suitably be used for a resist composition such that the resist composition shows high resolution, wide DOF, small LER and high sensitivity to form a good pattern shape in lithographic processes.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: March 31, 2015
    Assignee: Central Glass Company, Limited
    Inventors: Ryozo Takihana, Satoru Narizuka
  • Patent number: 8986923
    Abstract: Embodiments in accordance with the present invention encompass negative-tone, aqueous base developable, self-imagable polymer compositions useful for forming films that can be patterned to create structures for microelectronic devices, microelectronic packaging, microelectromechanical systems, optoelectronic devices and displays.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: March 24, 2015
    Assignee: Promerus, LLC
    Inventors: Brian Knapp, Edmund Elce, Hendra Ng, Andrew Bell, Cheryl Burns, Sridevi Kaiti, Brian Kocher, Yogesh Patel, Masanobu Sakamoto, Xiaoming Wu, Wei Zhang
  • Patent number: 8980506
    Abstract: The present invention relates to a photosensitive resin composition, which comprises an alkali-soluble resin (A), a compound (B) containing vinyl unsaturated group(s), a photoinitiator (C), ortho-naphthoquinone diazide sulfonic acid ester (D), a thermal initiator (E) and a solvent (F). The photosensitive resin composition added with the ortho-naphthoquinone diazide sulfonic acid ester (D) and the thermal initiator (E) can have excellent resolution and development adherence. Moreover, the present invention further provides a spacer or a protective film formed by the aforementioned photosensitive resin composition, as well as a liquid crystal display device (LCD) including the aforementioned spacer or protective film.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: March 17, 2015
    Assignee: Chi Mei Corporation
    Inventors: I-Chun Hsieh, Hao-Wei Liao
  • Patent number: 8956790
    Abstract: Disclosed is a positive photosensitive resin composition that includes (A) at least one dissolution controlling agent selected from a compound including a repeating unit represented by the following Chemical Formula 1, a compound including a repeating unit represented by the following Chemical Formula 2, or a combination thereof, (B) a polybenzoxazole precursor, (C) a photosensitive diazoquinone compound, and (D) a solvent. An organic insulator film for a display device manufactured using the same and a display device are also disclosed. In Chemical Formulae 1 and 2, each substituent is the same as defined in the detailed description.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: February 17, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Jun-Ho Lee, Hyo-Young Kwon, Hwan-Sung Cheon
  • Patent number: 8951713
    Abstract: An alkali-soluble resin is provided. The alkali-soluble resin is prepared using a polyfunctional thiol compound as a chain transfer agent. The alkali-soluble resin has a lower viscosity than a resin having the same molecular weight. Further provided is a negative-type photosensitive resin composition comprising the alkali-soluble resin as a binder resin. The use of the alkali-soluble resin lowers the overall viscosity of the photosensitive resin composition to effectively reduce the height of a stepped portion of a photoresist pattern using a small amount of the photosensitive resin composition.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: February 10, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Han Soo Kim, Sung Hyun Kim, Kwang Han Park, Min Young Lim, Yoon Hee Heo, Ji Heum Yoo, Sun Hwa Kim
  • Patent number: 8945810
    Abstract: A positive resist composition comprises: (A) a resin that has a repeating unit represented by general formula (a1) and increases its solubility in an alkali developer by action of an acid; (B) a compound which generates an acid upon irradiation with an actinic ray or a radiation; and (C) a resin that has at least one of a fluorine atom and a silicon atom and has a group selected from the group consisting of (x), (y) and (z); and (D) a solvent: (x) an alkali-soluble group; (y) a group capable that decomposes by action of an alkali developer to undergo an increase in a solubility of the resin (C) in an alkali developer; and (z) a group that decomposes by action of an acid, wherein R represents a hydrogen atom or a methyl group, Rxa represents an alkyl group or a cycloalkyl group, and n represents an integer of 1 to 8.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: February 3, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Fumiyuki Nishiyama, Hiromi Kanda
  • Patent number: 8940470
    Abstract: A material for a microlens having heat resistance, high resolution and high light-extraction efficiency is provided. A positive resist composition comprises an alkali-soluble polymer containing a unit structure having an aromatic fused ring or a derivative thereof, and a compound having an organic group which undergoes photodecomposition to yield an alkali-soluble group. The positive resist composition has coating film properties of a refractive index at a wavelength of 633 nm of 1.6 or more and a transmittance at wavelengths of 400 to 730 nm of 80% or more. A pattern forming method comprises applying the positive resist composition, drying the composition, exposing the composition to light, and developing the composition.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: January 27, 2015
    Assignee: Nissan Chemical Industries, Inc.
    Inventors: Takayuki Negi, Takahiro Sakaguchi, Takahiro Kishioka
  • Patent number: 8936891
    Abstract: The invention relates to a photosensitive polysiloxane composition that has good thermal transmittance, good chemical resistance and good sensitivity and good refractivity. The invention also provides a method for forming a thin film on a substrate, a thin film on a substrate and an apparatus.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: January 20, 2015
    Assignee: Chi Mei Corporation
    Inventors: Ming-Ju Wu, Chun-An Shih
  • Patent number: 8932797
    Abstract: A photoacid generator compound has formula (I): G+Z???(I) wherein G has formula (II): In formula (II), X is S or I, each R0 is commonly attached to X and is independently C1-30 alkyl; polycyclic or monocyclic C3-30 cycloalkyl; polycyclic or monocyclic C6-30 aryl; or a combination comprising at least one of the foregoing groups. G has a molecular weight greater than 263.4 g/mol, or less than 263.4 g/mol. One or more R0 groups are further attached to an adjacent R0 group, a is 2 or 3, wherein when X is I, a is 2, or when X is S, a is 2 or 3. Z in formula (I) comprises the anion of a sulfonic acid, a sulfonimide, or a sulfonamide. A photoresist and coated film also includes the photoacid generator, and a method of forming an electronic device uses the photoresist.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: January 13, 2015
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: James W. Thackeray, Suzanne M. Coley, James F. Cameron, Paul J. LaBeaume, Ahmad E. Madkour, Owendi Ongayi, Vipul Jain