Patents by Inventor Hee-Woo Rhee

Hee-Woo Rhee 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: 10047109
    Abstract: The present disclosure relates to a reactive porogen using cyclic organic polyol and an ultra low dielectric film prepared using the same, and more particularly, to novel cyclic organic polyol as a cyclic organic polyol compound which can be completely pyrolyzed at a temperature of 500° C. or less, does not leave carbon residue during a heat treatment if an end hydroxyl group of the cyclic organic compound is substituted by a functional group of alkylalkoxysilane and then used as a reactive porogen, and is involved in a sol-gel reaction of organic silicate and suppresses phase separation and thus forms pores having a uniform size and has excellent mechanical properties as compared with a porosity, a reactive porogen using the ash-free cyclic organic polyol, and an ultra low dielectric film prepared using the same.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 14, 2018
    Assignee: Sogang University Research Foundation
    Inventors: Hee-Woo Rhee, Sung-Min Cho
  • Patent number: 9680181
    Abstract: The present disclosure provides a solid polymer electrolyte composition including a polymer matrix, an organic solvent, and an additive agent containing polyhedral silsesquioxane, and also provides a lithium secondary battery including the same.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: June 13, 2017
    Assignee: SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Hee-Woo Rhee, Jungmin Lee, Eun Bee Kim, Kwang Min Kim
  • Patent number: 9679761
    Abstract: The present invention provides a method for preparing a nanoporous ultra-low dielectric thin film including a high-temperature ozone treatment and nanoporous ultra-low dielectric thin film prepared by the same method. The method includes preparing a mixture of an organic silicate matrix-containing solution and a reactive porogen-containing solution; coating the mixture on a substrate to form a thin film; and heating the thin film with an ozone treatment. The prepared nanoporous ultra-low dielectric thin film could have a dielectric constant of about 2.3 or less and a mechanical strength of about 10 GPa or more by improving a pore size and a distribution of pores in the thin film by performing an ozone treatment with high temperature and optimization of the ozone treatment temperature.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: June 13, 2017
    Assignees: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION, SOGANG UNIVERSITY
    Inventors: Hee Woo Rhee, Bo Ra Shin, Kyu Yoon Choi, Bum Suk Kim
  • Publication number: 20160251381
    Abstract: The present disclosure relates to a reactive porogen using cyclic organic polyol and an ultra low dielectric film prepared using the same, and more particularly, to novel cyclic organic polyol as a cyclic organic polyol compound which can be completely pyrolyzed at a temperature of 500° C. or less, does not leave carbon residue during a heat treatment if an end hydroxyl group of the cyclic organic compound is substituted by a functional group of alkylalkoxysilane and then used as a reactive porogen, and is involved in a sol-gel reaction of organic silicate and suppresses phase separation and thus forms pores having a uniform size and has excellent mechanical properties as compared with a porosity, a reactive porogen using the ash-free cyclic organic polyol, and an ultra low dielectric film prepared using the same.
    Type: Application
    Filed: February 26, 2016
    Publication date: September 1, 2016
    Inventors: Hee-Woo Rhee, Sung-Min Cho
  • Publication number: 20150244025
    Abstract: The present disclosure provides a solid polymer electrolyte composition including a polymer matrix, an organic solvent, and an additive agent containing polyhedral silsesquioxane, and also provides a lithium secondary battery including the same.
    Type: Application
    Filed: April 10, 2014
    Publication date: August 27, 2015
    Inventors: Hee-Woo Rhee, Jungmin Lee, Eun Bee Kim, Kwang Min Kim
  • Patent number: 9045607
    Abstract: The polymer electrolyte membrane of the present invention includes a proton conductive cation exchange resin, a non-proton-conductive polymer, and an inorganic additive. The inorganic additive is adapted to inhibit a phase separation between the proton conductive cation exchange resin and the non-proton-conductive polymer.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: June 2, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Kyu Song, You-Mee Kim, Ho-Jin Kweon, Hee-Woo Rhee
  • Patent number: 8518530
    Abstract: The present invention relates to a production method for an ultra-low-dielectric-constant film, in which ratios are optimised in a mixed solution having a matrix consisting of a poly (alkyl silsesquioxane) copolymer and a porogen represented by Chemical formula 1, and in which this mixed solution is subjected to ultraviolet curing during a heat treatment. The ultra-low-dieletric-constant film of the present invention can be used as an intermediate insulating film for next generation semiconductors instead of the SiO2 dielectric films currently used, since pores of from 1 to 3 nm are uniformly distributed at from 10 to 30% and a very high degree of mechanical elasticity of from 10.5 to 19 GPa is achieved at a low dielectric constant from 2.12 to 2.4.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: August 27, 2013
    Assignee: Industry-University Cooperation Foundation Sogang University
    Inventors: Hee-Woo Rhee, Hyun Sang Choi, Seong-Gyu Min, Bum Suk Kim, Bo ra Shin
  • Publication number: 20130101825
    Abstract: The present invention provides a method for preparing a nanoporous ultra-low dielectric thin film including a high-temperature ozone treatment and nanoporous ultra-low dielectric thin film prepared by the same method. The method includes preparing a mixture of an organic silicate matrix-containing solution and a reactive porogen-containing solution; coating the mixture on a substrate to form a thin film; and heating the thin film with an ozone treatment. The prepared nanoporous ultra-low dielectric thin film could have a dielectric constant of about 2.3 or less and a mechanical strength of about 10 GPa or more by improving a pore size and a distribution of pores in the thin film by performing an ozone treatment with high temperature and optimization of the ozone treatment temperature.
    Type: Application
    Filed: August 9, 2012
    Publication date: April 25, 2013
    Applicant: Industry-University Cooperation Foundation Sogang University
    Inventors: Hee Woo RHEE, Bo Ra SHIN, Kyu Yoon CHOI, Bum Suk KIM
  • Publication number: 20120064330
    Abstract: The present invention relates to a production method for an ultra-low-dielectric-constant film, in which ratios are optimised in a mixed solution having a matrix consisting of a poly (alkyl silsesquioxane) copolymer and a porogen represented by Chemical formula 1, and in which this mixed solution is subjected to ultraviolet curing during a heat treatment. The ultra-low-dieletric-constant film of the present invention can be used as an intermediate insulating film for next generation semiconductors instead of the SiO2 dielectric films currently used, since pores of from 1 to 3 nm are uniformly distributed at from 10 to 30% and a very high degree of mechanical elasticity of from 10.5 to 19 GPa is achieved at a low dielectric constant from 2.12 to 2.4.
    Type: Application
    Filed: February 19, 2010
    Publication date: March 15, 2012
    Inventors: Hee-Woo Rhee, Hyun Sang Choi, Seong-Gyu Min, Bum Suk Kim, Bo ra Shin
  • Patent number: 8092952
    Abstract: The present invention relates to a polymer blend electrolyte membrane comprising an inorganic polymer having polydimethylsiloxane as a main chain, which has a pore structure at both ends formed by condensation reaction between 3-aminopropyltriethoxysilane and tetraethylorthosilicate, wherein phosphoric acid is chemically linked to an amino group of the pore structure; and a proton-conducting polymer having a cation exchange group at the side chain thereof, as well as a manufacturing method thereof. Generally, proton-conducting electrolyte membranes have significantly reduced ion conductivity at high temperatures. However, proton-conducting electrolyte membranes have advantages in terms of efficiency and cost, and thus it is needed to develop an electrolyte membrane, which has excellent ion conductivity even at high temperature. Accordingly, the present invention aims to provide a polymer blend electrolyte membrane for use at high temperature and a manufacturing method thereof.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: January 10, 2012
    Assignees: Hyundai Motor Company, Industry-University Cooperation Foundation Sogang University
    Inventors: In Chul Hwang, Nak Hyun Kwon, Ki Yun Cho, Young Taek Kim, Hee Woo Rhee, Li Jin Ghil
  • Patent number: 7977008
    Abstract: The present invention relates to a high temperature proton-conducting polymer membrane, a preparation method thereof, a membrane-electrode assembly using the same and a fuel cell containing the same. More particularly, it relates to a proton-conducting polymer membrane enabling fuel cell operation under high temperature and normal pressure condition, wherein sulfoalkyl or sulfoaryl groups are introduced between layers of metal phosphate and cation exchange groups are present in side chains, a preparation method thereof and a membrane-electrode assembly using the proton exchange membrane and a fuel cell containing the same.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: July 12, 2011
    Assignee: Industry-University Cooperation Foundation Sogang University
    Inventors: Hee-Woo Rhee, Min-Kyu Song, Young-Taek Kim, Ki-Hyun Kim
  • Patent number: 7811694
    Abstract: A polymer electrolyte membrane for a direct oxidation fuel cell includes a porous polymer supporter having a plurality of pores, and a hydrocarbon fuel diffusion barrier layer which is formed on the polymer supporter and contains an inorganic additive dispersed in a cation exchange resin.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: October 12, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Kyu Song, You-Mee Kim, Ho-Jin Kweon, Hee-Woo Rhee
  • Patent number: 7597981
    Abstract: The present invention relates to a composite electrolyte membrane for fuel cells that has high proton conductivity and low fuel permeability even under low humidity conditions and at elevated temperatures. The membrane, comprising a cation exchange resin and acid-treated dendrimers, has great utility in large and medium fuel cells for applications in household appliances, electric vehicles, etc.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: October 6, 2009
    Assignee: Hyundai Motor Company
    Inventors: Jong Hyun Lee, Hwan Soo Shin, Hee Woo Rhee, Young Taek Kim, Min Kyu Song, Min Sung Kim
  • Publication number: 20090208848
    Abstract: The present invention relates to a polymer blend electrolyte membrane comprising an inorganic polymer having polydimethylsiloxane as a main chain, which has a pore structure at both ends formed by condensation reaction between 3-aminopropyltriethoxysilane and tetraethylorthosilicate, wherein phosphoric acid is chemically linked to an amino group of the pore structure; and a proton-conducting polymer having a cation exchange group at the side chain thereof, as well as a manufacturing method thereof. Generally, proton-conducting electrolyte membranes have significantly reduced ion conductivity at high temperatures. However, proton-conducting electrolyte membranes have advantages in terms of efficiency and cost, and thus it is needed to develop an electrolyte membrane, which has excellent ion conductivity even at high temperature. Accordingly, the present invention aims to provide a polymer blend electrolyte membrane for use at high temperature and a manufacturing method thereof.
    Type: Application
    Filed: August 20, 2008
    Publication date: August 20, 2009
    Applicants: Hyundai Motor Company, Industry-University Cooperation Foundation Songang University
    Inventors: Ki Yun Cho, In Chul Hwang, Nak Hyun Kwon, Young Taek Kim, Hee Woo Rhee, Li Jin Ghil
  • Patent number: 7462659
    Abstract: This invention is related to a reactive nanoparticular cyclodextrin derivative useful as a porogen and a low dielectric matrix, with excellent mechanical properties and uniformly distributed nanopores, manufactured by sol-gel reaction of the above reactive cyclodextrin. Furthermore, this invention also is related to an ultralow dielectric film, with uniformly distributed nanopores, a relatively high porosity of 51%, and a relatively low dielectric constant of 1.6, manufactured by thin-filming of the conventional organic or inorganic silicate precursor by using the above reactive nanoparticular cyclodextrin derivative as a porogen.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: December 9, 2008
    Assignee: Industry - University Cooperation Foundation Sogang University
    Inventors: Hee-Woo Rhee, Do Young Yoon, Kook Heon Char, Jin-Kyu Lee, Bongjin Moon, Sung-Kyu Min, Se Jung Park, Jae-Jin Shin
  • Publication number: 20080287573
    Abstract: The present invention relates to an ultra-low dielectric film for a copper interconnect, in particular, to an porous film prepared in such a manner that coating with an organic solution containing a polyalkyl silsesquioxane precursor or its copolymer as a matrix and acetylcyclodextrin nanoparticles as a template and then performing a sol-gel reaction and heat treatment at higher temperature. The present films may contain the template of up to 60 vol %, due to the use of acetylcyclodextrin, and have homogeneously distributed pores with the size of no more than 5 nm in the matrix. In addition, the present films exhibit a relatively low dielectric constant of about 1.5, and excellent interconnectivity between pores, so that they are considered a promising ultra-low dielectric film for a copper interconnect.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 20, 2008
    Inventors: Hee-Woo Rhee, Do Young Yoon, Kook Heon Char, Jin-Kyu Lee, Bongjin Moon, Sung-Kyu Min, Se Jung Park, Jae-Jin Shin
  • Publication number: 20070128879
    Abstract: This invention is related to a reactive nanoparticular cyclodextrin derivative useful as a porogen and a low dielectric matrix, with excellent mechanical properties and uniformly distributed nanopores, manufactured by sol-gel reaction of the above reactive cyclodextrin. Furthemore, this invention also is related to an ultralow dielectric film, with uniformly distributed nanopores, a relatively high porosity of 51%, and a relatively low dielectric constant of 1.6, manufactured by thin-filming of the conventional organic or inorganic silicate precursor by using the above reactive cyclodextrin as a porogen.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 7, 2007
    Applicant: INDUSTRY-UNIVERSITY CORPORATION FOUNDATION SOGANG UNIVERSITY
    Inventors: Hee-Woo Rhee, Do Young Yoon, Kook Heon Char, Jin-Kyu Lee, Bongjin Moon, Sung-Kyu Min, SeJung Park, Jae-Jin Shin
  • Publication number: 20070087246
    Abstract: The present invention provides materials and methods for making proton conductive polymer, polymer membranes comprising the proton conductive polymer, membrane-electrode assemblies comprising the polymer membrane, and fuel cells comprising the membrane-electrode assemblies. The proton conductive polymer can be formed in the following manner: a) silicon inorganic polymers and silane compounds having amino groups are dissolved in a solvent to form a precursor; b) said precursor undergoes condensation polymerization to form a network of inorganic polymers; and c) the network and a reactant are contacted with one another to form the proton conductive polymer.
    Type: Application
    Filed: December 15, 2005
    Publication date: April 19, 2007
    Inventors: Hwan Soo Shin, Hee Woo Rhee, Young Taek Kim, Jong Hyun Lee, Ji-Soo Kim
  • Publication number: 20070026284
    Abstract: The present invention relates to a high temperature proton-conducting polymer membrane, a preparation method thereof, a membrane-electrode assembly using the same and a fuel cell containing the same. More particularly, it relates to a proton-conducting polymer membrane enabling fuel cell operation under high temperature and normal pressure condition, wherein sulfoalkyl or sulfoaryl groups are introduced between layers of metal phosphate and cation exchange groups are present in side chains, a preparation method thereof and a membrane-electrode assembly using the proton exchange membrane and a fuel cell containing the same.
    Type: Application
    Filed: November 26, 2003
    Publication date: February 1, 2007
    Applicant: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Hee-Woo Rhee, Min-Kyu Song, Young-Taek Kim, Ki-Hyun Kim
  • Publication number: 20060292415
    Abstract: The polymer electrolyte membrane of the present invention includes a proton conductive cation exchange resin, a non-proton-conductive polymer, and an inorganic additive. The inorganic additive is adapted to inhibit a phase separation between the proton conductive cation exchange resin and the non-proton-conductive polymer.
    Type: Application
    Filed: June 28, 2006
    Publication date: December 28, 2006
    Inventors: Min-Kyu Song, You-Mee Kim, Ho-Jin Kweon, Hee-Woo Rhee