Patents by Inventor Takanori Kudo

Takanori Kudo 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).

  • Publication number: 20060088788
    Abstract: The present invention relates to an aqueous coating composition for coating a photoresist pattern comprising a polymer containing amino group. The present invention also relates to a process for manufacturing a microelectronic device comprising providing a substrate with a photoresist pattern, coating the photoresist pattern with the novel coating material reacting a portion of the coating material in contact with the photoresist pattern, and removing a portion of the coating material which is not reacted with a removal solution.
    Type: Application
    Filed: October 26, 2004
    Publication date: April 27, 2006
    Inventors: Takanori Kudo, Munirathna Padmanaban, Ralph Dammel
  • Publication number: 20060024610
    Abstract: The present invention provides for a photoresist composition comprising a mixture of two different copolymers.
    Type: Application
    Filed: August 2, 2004
    Publication date: February 2, 2006
    Inventors: Munirathna Padmanaban, Guanyang Lin, Takanori Kudo, Chi-Sun Hong, M. Dalil Rahman
  • Patent number: 6991888
    Abstract: The present invention relates to a novel photoresist composition that can be developed with an aqueous alkaline solution, and is capable of being imaged at exposure wavelengths in the deep ultraviolet. The invention also relates to a process for imaging the novel photoresist as well as novel photoacid generators. The novel photoresist comprises a) a polymer containing an acid labile group, and b) a novel mixture of photoactive compounds, where the mixture comprises a lower absorbing compound selected from structure 1 and 2, and a higher absorbing compound selected from structure 4 and 5, where, R1 and R2 R5, R6, R7, R8, and R9 are defined herein; m=1–5; X? is an anion, and Ar is selected from naphthyl, anthracyl, and structure 3, where R30, R31, R32, R33, and R34 are defined herein.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: January 31, 2006
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Munirathna Padmanaban, Takanori Kudo, Sangho Lee, Ralph R. Dammel, M. Dalil Rahman
  • Patent number: 6889520
    Abstract: The object of the invention is to provide a thermal complementary (combination of heat supply and heat discharge) system which can complement heat without the restriction of area of a region to be supplied with heat. An endless multiplex helical loop is formed to complement the heat produced in a region such as plants and regional facilities on a reciprocal basis, and the water is not circulated forcibly but achieves heat transfer in the helical loop. Liquid or slurry-like water is sealed in the annular endless channel (endless loop) without forcibly circulated. Therefore, loop diameter of the annular endless channel, that means the area of the region, is not limited. The water forms temperature zones in the endless helical loop, the temperature being different per each component loop. Distributed cryogenic sources and thermal sources are thermally connected to said multiplex helical loop so that heat (i.e. water) can be taken in or discharged to or from said cryogenic or thermal sources.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: May 10, 2005
    Assignee: Mayekawa Mfg. Co., Ltd.
    Inventors: Makoto Sano, Kuniaki Kawamura, Junji Matsuda, Katsumi Fujima, Takanori Kudo, Youichi Kawazu, Choiku Yoshikawa, Syuji Fukano
  • Patent number: 6800416
    Abstract: The present invention relates to a novel negative working deep uv photoresist that is developable in an aqueous alkaline solution, and comprises a fluorinated polymer, photoactive compound and a crosslinking agent. The photoresist composition is particularly useful for patterning with exposure wavelengths of 193 nm and 157 nm.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: October 5, 2004
    Assignee: Clariant Finance (BVI) Ltd.
    Inventors: Takanori Kudo, Munirathna Padmanaban, Ralph R. Dammel, Medhat A. Touky
  • Publication number: 20040106742
    Abstract: A coating composition comprising at least one polymer having carboxyl group, a polyfunctional epoxide-group-containing compound having at least one benzene or 5-, 6-, or 7-membered heterocyclic ring containing at least one heteroatom selected from nitrogen, oxygen or sulfur or cyclohexyl group or combinations thereof, and two or more epoxy groups, a reaction accelerator, and a solvent. This coating composition is excellent in storage stability, and can provide an excellent protective film.
    Type: Application
    Filed: June 27, 2003
    Publication date: June 3, 2004
    Inventors: Takamasa Harada, Katsuyuki Sakamoto, Takanori Kudo
  • Patent number: 6737492
    Abstract: A radiation absorbing polymer having chemically bonded thereto a radiation absorbing dye, which has high absorption at a predetermined wavelength radiation, which shows good adhesion to a substrate and good thin film-forming, which has no dependence upon resists, which is soluble in a solvent for photoresists but becomes insoluble after being baked; a composition for radiation absorbing coating containing this polymer, and a radiation absorbing coating such as an anti-reflective coating formed from this composition are disclosed. The radiation absorbing polymer comprises a copolymer containing at least both a recurring unit composed of a monomer containing a keto group and a divalent group (preferably a methylene group) in its side chain and a recurring unit composed of a monomer containing an organic chromophore bonded directly or through a linkage group to the main chain. This radiation absorbing polymer is dissolved in a solvent such as alcohol, aromatic hydrocarbon, ketone, ester, etc.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: May 18, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Wen-Bing Kang, Munirathna Padmanaban, Hatsuyuki Tanaka, Ken Kimura, Takanori Kudo, Georg Pawlowski
  • Patent number: 6723488
    Abstract: The present invention relates to a photoresist composition sensitive to radiation in the deep ultraviolet, particularly a positive working photoresist sensitive in the range of 100-200 nanometers(nm). The photoresist composition comprises a) a polymer that is insoluble in an aqueous alkaline solution and comprises at least one acid labile group, and furthermore where the polymer is essentially non-phenolic, b) a compound capable of producing an acid upon radiation, and c) an additive that reduces the effect of electrons and ions on the photoresist image.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: April 20, 2004
    Assignee: Clariant Finance (BVI) Ltd
    Inventors: Takanori Kudo, Ralph R. Dammel, Munirathna Padmanaban
  • Publication number: 20040011074
    Abstract: The object of the invention is to provide a thermal complementary (combination of heat supply and heat discharge) system which can complement heat without the restriction of area of a region to be supplied with heat. An endless multiplex helical loop is formed to complement the heat produced in a region such as plants and regional facilities on a reciprocal basis, and the water is not circulated forcibly but achieves heat transfer in the helical loop.
    Type: Application
    Filed: May 13, 2003
    Publication date: January 22, 2004
    Inventors: Makoto Sano, Kuniaki Kawamura, Junji Matsuda, Katsumi Fujima, Takanori Kudo, Youichi Kawazu, Choiku Yoshikawa, Syuji Fukano
  • Publication number: 20030235782
    Abstract: The present invention relates to a novel photoresist composition that can be developed with an aqueous alkaline solution, and is capable of being imaged at exposure wavelengths in the deep ultraviolet. The invention also relates to a process for imaging the novel photoresist as well as novel photoacid generators.
    Type: Application
    Filed: May 16, 2003
    Publication date: December 25, 2003
    Inventors: Munirathna Padmanaban, Takanori Kudo, Sangho Lee, Ralph R. Dammel, M. Dalil Rahman
  • Publication number: 20030235775
    Abstract: The present invention relates to a novel photoresist that can be developed with an aqueous alkaline solution, and is capable of being imaged at exposure wavelengths in the deep ultraviolet. The invention also relates to a process for imaging the novel photoresist.
    Type: Application
    Filed: June 13, 2002
    Publication date: December 25, 2003
    Inventors: Munirathna Padmanaban, Takanori Kudo, Sangho Lee, Ralph R. Dammel, M. Dalil Rahman
  • Patent number: 6610465
    Abstract: The present invention provides a method for producing a film forming resin suitable for use in a photoresist composition, involving the following steps: (a) providing a solution of a film forming resin in a solvent; (b) providing the following two filter sheets: (i) a filter sheet containing a self-supporting fibrous matrix having immobilized therein a particulate filter aid and particulate ion exchange resin particles, where the particulate filter aid and ion exchange resin particles are distributed substantially uniformly throughout a cross-section of said matrix; and (ii) a filter sheet containing a self-supporting matrix of fibers having immobilized therein particulate filter aid and binder resin; (c) rinsing the filter sheets of step (b) with the solvent of step (a); and (d) passing the solution of the film forming resin through the rinsed filter sheets of step (c).
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: August 26, 2003
    Assignee: Clariant Finance (BVI) Limited
    Inventors: M. Dalil Rahman, Douglas McKenzie, Takanori Kudo, Munirathna Padmanaban
  • Publication number: 20030129527
    Abstract: The present invention relates to a novel negative working deep uv photoresist that is developable in an aqueous alkaline solution, and comprises a fluorinated polymer, photoactive compound and a crosslinking agent. The photoresist composition is particularly useful for patterning with exposure wavelengths of 193 nm and 157 nm.
    Type: Application
    Filed: January 9, 2002
    Publication date: July 10, 2003
    Inventors: Takanori Kudo, Munirathna Padmanaban, Ralph R. Dammel, Medhat A. Touky
  • Publication number: 20030087180
    Abstract: The present invention relates to a photoresist composition sensitive to radiation in the deep ultraviolet, particularly a positive working photoresist sensitive in the range of 100-200 nanometers(nm). The photoresist composition comprises a) a polymer that is insoluble in an aqueous alkaline solution and comprises at least one acid labile group, and furthermore where the polymer is essentially non-phenolic, b) a compound capable of producing an acid upon radiation, and c) an additive that reduces the effect of electrons and ions on the photoresist image.
    Type: Application
    Filed: November 7, 2001
    Publication date: May 8, 2003
    Inventors: Takanori Kudo, Ralph R. Dammel, Munirathna Padmanaban
  • Publication number: 20030065119
    Abstract: A radiation absorbing polymer having chemically bonded thereto a radiation absorbing dye, which has high absorption at a predetermined wavelength radiation, which shows good adhesion to a substrate and good thin film-forming, which has no dependence upon resists, which is soluble in a solvent for photoresists but becomes insoluble after being baked; a composition for radiation absorbing coating containing this polymer, and a radiation absorbing coating such as an anti-reflective coating formed from this composition are disclosed. The radiation absorbing polymer comprises a copolymer containing at least both a recurring unit composed of a monomer containing a keto group and a divalent group (preferably a methylene group) in its side chain and a recurring unit composed of a monomer containing an organic chromophore bonded directly or through a linkage group to the main chain. This radiation absorbing polymer is dissolved in a solvent such as alcohol, aromatic hydrocarbon, ketone, ester, etc.
    Type: Application
    Filed: August 27, 2002
    Publication date: April 3, 2003
    Applicant: Clariant Finance (BVI) Limited
    Inventors: Wen-Bing Kang, Munirathna Padmanaban, Hatsuyuki Tanaka, Ken Kimura, Takanori Kudo, George Pawlowski
  • Publication number: 20020197555
    Abstract: The present invention provides a method for producing a film forming resin suitable for use in a photoresist composition, involving the following steps: (a) providing a solution of a film forming resin in a solvent, the film forming resin made by polymerizing at least one monomer containing a cycloolefin or an acid labile acrylate or a methacrylate; (b) providing at least one of the following two filter sheets: (i) a filter sheet containing a self-supporting fibrous matrix having immobilized therein a particulate filter aid (which has preferably been acid-washed) and particulate ion exchange resin particles having an average particle size of from about 2 to about 10 microns, where the particulate filter aid and ion exchange resin particles are distributed substantially uniformly throughout a cross-section of said matrix; and/or (ii) a filter sheet containing a self-supporting matrix of fibers (preferably cellulose) having immobilized therein particulate filter aid and binder resin, the filter sheet preferably
    Type: Application
    Filed: April 11, 2001
    Publication date: December 26, 2002
    Inventors: M. Dalil Rahman, Douglas McKenzie, Takanori Kudo, Munirathna Padmanaban
  • Patent number: 6468718
    Abstract: A radiation absorbing polymer having chemically bonded thereto a radiation absorbing dye, which has high absorption at a predetermined wavelength radiation, which shows good adhesion to a substrate and good thin film-forming, which has no dependence upon resists, which is soluble in a solvent for photoresists but becomes insoluble after being baked; a composition for radiation absorbing coating containing this polymer, and a radiation absorbing coating such as an anti-reflective coating formed from this composition are disclosed. The radiation absorbing polymer comprises a copolymer containing at least both a recurring unit composed of a monomer containing a keto group and a divalent group (preferably a methylene group) in its side chain and a recurring unit composed of a monomer containing an organic chromophore bonded directly or through a linkage group to the main chain. This radiation absorbing polymer is dissolved in a solvent such as alcohol, aromatic hydrocarbon, ketone, ester, etc.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: October 22, 2002
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Wen-Bing Kang, Munirathna Padmanaban, Hatsuyuki Tanaka, Ken Kimura, Takanori Kudo, Georg Pawlowski
  • Patent number: 6372403
    Abstract: A photosensitive resin composition comprising (a) a photosensitizer having in its structure 1,2-diazidonaphthoquinone structure, and a methylene-bridged structure composed of two or more methyl-substituted phenol derivatives, (b) a polymer having both hydroxyl group and carboxyl group, or a combination of a polymer having hydroxyl group and one having carboxyl group, (c) a crosslinking agent capable of crosslinking hydroxyl group and carboxyl group, and (d) a solvent. This composition can form highly transparent films, and, in addition, patterns having high contrast can be obtained when this composition is used as a photoresist.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: April 16, 2002
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Minoru Kurisaki, Takamasa Harada, Takanori Kudo, Takashi Takeda, Junichi Fukuzawa
  • Patent number: 5882843
    Abstract: A photosensitive resin composition is disclosed.The photosensitive resin composition is characterized by containing (a) a reaction product of a polymer having a specific segment with (3,4-epoxycylohexyl)-methyl methacrylate, (b) a polymerization initiator allowing the initiation of the polymerization of said reaction product when irradiated with an actinic radiation, and (c) a solvent. Preferably, the composition further contains (d) a thermal crosslinker, a compound having a polymerizable unsaturated bond and/or a pigment in addition to the above ingredients.
    Type: Grant
    Filed: November 14, 1995
    Date of Patent: March 16, 1999
    Assignee: Hoechst Japan Limited
    Inventors: Takanori Kudo, Yuko Nozaki, Kazuya Nagao, Yuki Nanjo
  • Patent number: 5843319
    Abstract: A process for producing a solution of a basic or non-basic sulfonium compound (A) of formulae II-V: ##STR1## wherein R.sup.5, R.sup.6 and R.sup.7 each independently represent a C.sub.1 -C.sub.18 alkyl, aryl or heteroaryl group or an aryl group mono-, di- or tri-substituted with an alkyl, an alkylaryl, an aryl, a halogen, an alkoxy, a phenoxy, a thiophenol, a phenylsulfonyl or a phenylsulphenyl;Y represents (CH.sub.2).sub.n (wherein n is 0 or 1), O or S;R.sup.8 and R.sup.9 represent a C.sub.1 -C.sub.4 alkyl, alkoxy or a halogen;R.sup.10 and R.sup.11 represent a C.sub.1 -C.sub.4 alkyl, alkoxy or a halogen;n is 5 or 6; andX.sub.2.sup.- represents a basic anion having a pK.sub.B value of -3 to +5; comprising the steps of:(a) dissolving a sulfonium salt (B) in a metal-ion free polar or non-polar solvent to form a solution, said sulfonium salt (B) being selected from said formulae II-V, wherein R.sup.5 to R.sup.11, Y and n of said sulfonium salt (B) have the sane meaning as above and X.sub.2.sup.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: December 1, 1998
    Assignee: Hoechst Japan Limited
    Inventors: Klaus Juergen Przybilla, Takanori Kudo, Seiya Masuda, Yoshiaki Kinoshita, Natsumi Suehiro, Munirathna Padmanaban, Hiroshi Okazaki, Hajime Endo, Ralph Dammel, Georg Pawlowski