Patents by Inventor Wen-Bing Kang

Wen-Bing Kang 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: 8663906
    Abstract: The present invention provides a composition for forming a fine pattern with high dry etching resistance and a method for forming the fine pattern. The composition for fine pattern formation containing: a resin containing a repeating unit having a silazane bond; and a solvent as well as a method for fine pattern formation using the same.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: March 4, 2014
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Ralph R Dammel, Wen-Bing Kang, Yasuo Shimizu, Tomonori Ishikawa
  • Publication number: 20100255430
    Abstract: The present invention provides a composition for forming a fine pattern with high dry etching resistance and a method for forming the fine pattern. The composition for fine pattern formation containing: a resin containing a repeating unit having a silazane bond; and a solvent as well as a method for fine pattern formation using the same.
    Type: Application
    Filed: September 12, 2008
    Publication date: October 7, 2010
    Inventors: Ralph R. Dammel, Wen-Bing Kang, Yasuo Shimizu, Tomonori Ishikawa
  • Publication number: 20100119717
    Abstract: A process which comprises applying a water-soluble resin composition comprising a water-soluble vinyl resin, a compound having at least two amino groups in the molecule, a solvent, and, if necessary, an additive such as a surfactant on a resist pattern (2) formed on a substrate (1) to form a water-soluble resin film (3) , modifying part of the water-soluble resin film adjacent to the resist pattern through mixing to form a water-insolubilized layer (4) which cannot be removed by water washing on the surface of the resist pattern, and removing unmodified part of the water-soluble resin film by water washing and which enables the effective scale-down of separation size and hole opening size of a resist pattern to a level finer than the limit of resolution of the wave length of exposure.
    Type: Application
    Filed: May 1, 2008
    Publication date: May 13, 2010
    Inventors: Sung-Eun Hong, Yusuke Takano, Wen-Bing Kang
  • Patent number: 6939661
    Abstract: A composition for forming a radiation absorbing coating which comprises an organic solvent, a radiation absorbing polymer or a radiation absorbing material dissolved therein and a crosslinking agent having blocked isocyanate groups. Since the isocyanate groups of the crosslinking agent have been blocked, the composition containing the crosslinking agent has excellent storage stability. When the composition applied to a substrate and then baked, crosslinking proceeds to give an antireflective coating, which does not intermix with a resist layer to be formed thereon by coating and is free from diffusion of a photo-generated acid thereinto from the resist layer. As a result, a resist image free from footing or scum can be formed.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: September 6, 2005
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Wen-Bing Kang, Ken Kimura, Shoko Matsuo, Yoshinori Nishiwaki, Hatsuyuki Tanaka
  • Patent number: 6803168
    Abstract: A composition for an anti-reflective coating or a radiation absorbing coating which can form an anti-reflective coating or a radiation absorbing coating having high absorption to exposed radiation in the range of 100 to 450 nm, no diffusion of photo-generated acid to anti-reflective coating and so on, no intermixing of resist and anti-reflective coating layer, good shelf-life stability, and good step coverage and novel compounds and polymers being preferably used in the composition are disclosed. The composition contains an acrylic or methacrylic compound or polymer with an isocyanate or thioisocyanate group bonded through an alkylene group to a side chain thereof or with an amino or hydroxyl group-containing organic chromophore which absorbs radiation in the range of 100 to 450 nm wavelength and is bonded, for example, through an alkylene group to the isocyanate or thioisocyanate group. Resist patters with high resolution are formed on a substrate.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: October 12, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Munirathna Padmanaban, Wen-Bing Kang, Hatsuyuki Tanaka, Ken Kimura, Georg Pawlowski
  • 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: 6559473
    Abstract: An organic light-emitting diode with high luminance and high efficiency comprising an anode, an organic pn-junction and a cathode layered sequentially in this order, wherein the organic pn-junction emits light by an electric current passing through the diode in an electric field applied between the anode and the cathode, characterized in that the organic pn-junction is composed of an organic p-type luminescent-semiconductor thin film and an organic n-type luminescent-semiconductor thin film, wherein one surface of the organic p-type luminescent-semiconductor thin film is in contact with the anode and another surface of the organic p-type luminescent-semiconductor thin film is in contact with the organic n-type luminescent-semiconductor thin film, and one surface of the organic n-type luminescent-semiconductor thin film is in contact with the cathode and another surface of the organic n-type luminescent-semiconductor thin film is in contact with the organic p-type luminescent-semiconductor thin film and wherei
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: May 6, 2003
    Assignee: Hoechst Japan Limited
    Inventors: Nu Yu, Wen-Bing Kang, Akihiko Tokida
  • 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: 20030027078
    Abstract: A composition for forming a radiation absorbing coating which comprises an organic solvent, a radiation absorbing polymer or a radiation absorbing material dissolved therein and a crosslinking agent having blocked isocyanate groups. Since the isocyanate groups of the crosslinking agent have been blocked, the composition containing the crosslinking agent has excellent storage stability. When the composition applied to a substrate and then baked, crosslinking proceeds to give an antireflective coating, which does not intermix with a resist layer to be formed thereon by coating and is free from diffusion of a photo-generated acid thereinto from the resist layer. As a result, a resist image free from footing or scum can be formed.
    Type: Application
    Filed: August 30, 2002
    Publication date: February 6, 2003
    Inventors: Wen-Bing Kang, Ken Kimura, Shoko Matsuo, Yoshinori Nishiwaki, Hatsuyuki Tanaka
  • 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: 6465148
    Abstract: A composition for forming a radiation absorbing coating which comprises an organic solvent, a radiation absorbing polymer or a radiation absorbing material dissolved therein and a crosslinking agent having blocked isocyanate groups. Since the isocyanate groups of the crosslinking agent have been blocked, the composition containing the crosslinking agent has excellent storage stability. When the composition applied to a substrate and then baked, crosslinking proceeds to give an antireflective coating, which does not intermix with a resist layer to be formed thereon by coating and is free from diffusion of a photo-generated acid thereinto from the resist layer. As a result, a resist image free from footing or scum can be formed.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: October 15, 2002
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Wen-Bing Kang, Ken Kimura, Shoko Matsuo, Yoshinori Nishiwaki, Hatsuyuki Tanaka
  • Patent number: 6465161
    Abstract: In a process for manufacturing integrated circuit elements or the like by photolithography, a method for reducing detrimental influence on resist shape due to properties of a substrate or acidity of substrate surface in case where a chemically amplified resist or the like is used as a photoresist, and a substrate-treating agent composition to be used for this method are described. The substrate-treating agent composition comprises a solution containing a salt between at least one basic compound selected from among primary, secondary and tertiary amines and nitrogen-containing heterocyclic compounds and an organic acid such as a sulfonic acid or a carboxylic acid. This composition is coated on a substrate surface having thereon a bottom anti-reflective coating such as SiON layer, baked and, if necessary washed, then a chemically amplified resist is coated on the thus-treated substrate, exposed and developed to form a resist pattern on the substrate.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: October 15, 2002
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Wen-Bing Kang, Shoko Matsuo, Ken Kimura, Yoshinori Nishiwaki, Hatsuyuki Tanaka
  • Patent number: 6361917
    Abstract: A process for forming a pattern which comprises irradiating with light a film of a poly(arylenevinylene) polymer represented by the following formula (I) —(Ar—CR1=CR2)n—  (I) wherein Ar is a substituted or unsubstituted divalent aromatic hydrocarbon group or a substituted or unsubstituted divalent heterocyclic ring group, and the aromatic hydrocarbon group and the heterocyclic ring group may be a fused ring, R1, R2 independently of each other, are H, CN, alkyl, alkoxy are substituted or unsubstituted aromatic hydrocarbon groups or substituted or unsubstituted aromatic heterocycles, which may both be fused rings, and n is an integer of 2 or more. It is preferred that either R1 or R2 is H and more preferred that both R1 and R2 are H.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: March 26, 2002
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wen-Bing Kang, Nu Yu, Akihiko Tokida
  • Patent number: 6329117
    Abstract: A composition for an anti-reflective coating or a light absorbing coating, which shows good light absorption for lights of 100-450 nm in wavelength, suffers neither footing nor intermixing, and has excellent storage stability and step coverage, and novel copolymers to be used therein.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: December 11, 2001
    Assignee: Clariant International, Ltd.
    Inventors: Munirathna Padmanaban, Wen-Bing Kang, Georg Pawlowski, Ken Kimura, Hatsuyuki Tanaka
  • Patent number: 6277750
    Abstract: As a bottom anti-reflective coating material for use in photolithography, polymer dyes represented by following general formula are used. The polymer dyes are able to form a bottom anti-reflective coating having good film formation properties, good absorption properties at exposure wavelength, good step coverage, non-intermixing with photoresist and high etch rate. wherein R represents H or a substituted or non-substituted alkyl, cycloalkyl, or aryl group, R1 represents a substituted or non-substituted alkyl or aryl, or a —COOR3 group in which R3 represents an alkyl group, R2 represents a substituted or non-substituted alkyl, cycloalkyl, or aryl group, D is an organic chromophore which absorbs at the exposure wavelength (150-450 nm) and represents a substituted or non-substituted aryl, condensed aryl, or heteroaryl group, m and o are any integer above zero, and n, p and q are any integer including zero.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: August 21, 2001
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Georg Pawlowski, Munirathna Padmanaban, Wen-Bing Kang, Hatsuyuki Tanaka, Ken Kimura, Yoshinori Nishiwaki
  • Patent number: 6255405
    Abstract: A high-performance anti-reflective coating which highly absorbs a given light, e.g., deep ultraviolet rays, tenaciously adheres to substrates upon coating formation, is satisfactory in covering, and eliminates the influence of standing waves in the production of integrated circuits; novel light-absorbing polymers for forming the anti-reflective coating; and a process for producing the polymers. One of the polymers is produced by esterifying a copolymer comprising carboxylic anhydride groups and/or dicarboxylic acid groups such as maleic acid as basic recurring units with a hydroxylated aromatic chromophore. The unreacted carboxylic acid groups or acid anhydride groups remaining in the esterified light-absorbing polymer may be amidated and/or imidized with an aminated aromatic compound.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: July 3, 2001
    Assignee: Clariant International, Ltd.
    Inventors: Wen-Bing Kang, Yoshinori Nishiwaki, Ken Kimura, Syoko Matsuo, Hatsuyuki Tanaka
  • Patent number: 5919579
    Abstract: An organic electroluminescent device comprising an anode, an organic hole transport layer, an organic emission layer and a cathode layered in this order on a substrate, or, optionally, comprising an additional electron transport layer between the organic emission layer and the cathode, wherein the organic emission layer comprises a naphthalimide derivative represented by formula (1) wherein R.sup.1 is a hydrogen atom, a straight chain or branched chain alkyl group having from 1 to 16 carbon atoms, an aryl group which may have substituents or an aralkyl group which may have substituents, and R.sup.2, R.sup.3, R.sup.4 are special substituents.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: July 6, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wen-Bing Kang, Nu Yu, Akihiko Tokida, Thomas Potrawa, Andreas Winterfeldt
  • Patent number: 5871854
    Abstract: An organic electroluminescence device comprising an anode, an organic hole transport layer, an organic emission layer and a cathode layered in this order on a substrate, or, optionally, comprising an additional electron transport layer between the organic emission layer and the cathode, wherein the organic emission layer comprises a benzoxazinone derivative represented by formula (1), wherein R.sup.1 is a specific acyl group or sulfonyl group, and R.sup.2 and R.sup.3 are specific substituents.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: February 16, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Akihiko Tokida, Wen-Bing Kang, Nu Yu, Thomas Potrawa, Andreas Winterfeldt
  • Patent number: 5844249
    Abstract: A detecting apparatus capable of supporting even narrow wire widths and of detecting defects of wires in a non-contact manner is provided. The detecting apparatus comprises an optical sensor, a sensor head, and a signal processing unit. The optical sensor comprises a transparent substrate, a transparent electrode disposed on the transparent substrate, a thin film of a polymer non-linear optical material disposed on the transparent electrode, and a reflective film disposed on the thin film, and is positioned in close approximation to and without contacting an electrode to be measured on the wiring board. The sensor head comprises a light source, optical means for guiding light from the light source into the optical sensor, and detecting means for detecting reflected light from the optical sensor. The detecting means supplies the signal processing unit with a signal corresponding to the intensity of the reflected light when the electrode on the wiring board is applied with a voltage.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: December 1, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Yusuke Takano, Shizuo Ogura, Tsunetoshi Sugiyama, Wen-Bing Kang
  • Patent number: 5652327
    Abstract: A polymer containing triazine rings that has a molecular weight of 5,000-1,000,000 and that comprises a recurring unit represented by the general formula (I): ##STR1## wherein X.sup.1 and X.sup.2 are each independently S, NR.sup.1 (R is a hydrogen atom, an alkyl group or an aryl group) or O; Y may be an alkylene group, a divalent substituted or unsubstituted aromatic ring group that do not contain chromophore moieties or a group in which said aromatic ring groups are bonded or condensed together; Z is either a spacer group comprising a group represented by --G--(CH.sub.2).sub.n -- (n is an integer of 1-10) or a direct bond (G is S, NR.sup.4 or O, and R.sup.4 is a hydrogen atom, an alkyl group or an aryl group); and A is an organic chromophore moiety in which an electron donative group and an electron attractive group are conjugated via a .pi.-electron system. The polymer is lightproof, forms a thin film of high quality and has a high glass transition point.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: July 29, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wen-Bing Kang, Tsunetoshi Sugiyama, Shizuo Ogura, Yusuke Takano