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Chung, Uiwang-Si

Chang Beom Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20090136748Adhesive compostion for die bonding in semiconductor assembly, adhesive film prepared therefrom, dicing die-bonding film prepared therefrom, device package including the same, and associated methods - An adhesive film composition includes a polymer binder; a curable resin; and about 40 to about 60 wt. % of solvent, wherein the solvent is a binary solvent consisting essentially of at least a first solvent with a boiling point of about 40° C. to about 100° C. and at least a second solvent with a boiling point of about 140° C. to about 200° C.05-28-2009
20090143497UV-curable pressure-sensitive adhesive composition with a fluorinated acrylic binder resin and pressure-sensitive adhesive film using the same - A photocurable pressure-sensitive adhesive (PSA) composition includes an acrylic PSA binder, the acrylic PSA binder including at least one fluoro group in an amount of about 6 mol % to about 30 mol % based on a total amount of the acrylic PSA binder, a thermal curing agent, and a photoinitiator.06-04-2009
20090162650Adhesive film composition for semiconductor assembly, adhesive film, dicing die bonding film, device package, and associated methods - An adhesive film composition for semiconductor assembly includes an elastomer resin, an epoxy resin, a phenolic curing resin, and a silsesquioxane oligomer. The silsesquioxane oligomer may be present in an amount of about 0.01 to about 3 wt. %, based on the total solids content of the composition.06-25-2009
20100330780MULTI-FUNCTION TAPE FOR A SEMICONDUCTOR PACKAGE AND METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE USING THE SAME - A multifunction tape for a semiconductor package and configured to bond to a device-formed side of a semiconductor substrate having a plurality of devices thereon while performing a process of grinding a side of the semiconductor substrate opposite to the device-formed side and a process of dicing the semiconductor substrate into individual chips with a dicing tape having a UV-curable adhesive layer bonded to the ground side of the semiconductor substrate, the multifunction tape being bonded to the individual chips while the individual chips, separated from each other by the dicing process, are picked up and die-attached and a method of manufacturing a semiconductor device using the same, the multifunction tape including a base film; a UV-curable adhesive layer on one side of the base film; and first and second bonding layers on the adhesive layer.12-30-2010

Chanil Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20100112631Chip Having Microchannel For Counting Specific Micro Particles Among Floating Micro Particle Mixture By Optical Means And A Method For Counting Micro Particles Using The Same - A microchannel chip for counting floating microparticles with an optical method is provided. The depth of the microchannel chip is made to be a depth of field such that a clear and sharp optical image of microparticles can be obtained, without necessarily diluting the microparticle mixture inside the microchannel. Consequently, a microparticle counting instrument can easily count microparticles shown on an optical image of the microchannel. Particularly, it enables to count more easily the number of CD3 cells CD4 cells or CD8 cells in white blood cells being stained, without lysing or diluting red blood cells. Therefore, the microchannel chip can advantageously used for counting the number of CD3 cells, CD4 cells or CD8 cells in blood of an AIDS patient to monitor the progression of AIDS.05-06-2010

Hae Ryong Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20110143135ADHESIVE COMPOSITION AND OPTICAL MEMBER USING THE SAME - An adhesive composition and an optical member using the same, the adhesive composition including about 100 parts by weight of a (meth)acrylate copolymer including repeating units derived from a C06-16-2011
20110163281POLARIZER, METHOD FOR PREPARING THE SAME, AND POLARIZING PLATE PROVIDED WITH THE SAME - A polarizer includes a polyvinyl alcohol-based resin film in which iodine is oriented by adsorption, wherein an iodine orientation ratio, represented by the following Equation I, is about 20% to about 30%,07-07-2011

Hyoung-Joo Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20110059300Molded Product Assembly - The present invention provides a molded product assembly. The molded product assembly includes a first molded product having a transparency ranging from about 75 to about 99.9% and a second molded product having a transparency ranging from about 0.1 to about 50% and can have a metal texture.03-10-2011

Jin Hwa Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20100152357Polycarbonate Resin Composition with Improved Transparency and Scratch-Resistance - A polycarbonate resin composition can have improved transparency and scratch resistance of the present invention and comprises about 10 to about 99% by weight of polycarbonate resin (A); and about 1 to about 90% by weight of acrylic copolymer with ultra-low molecular weight and high refractive index (B). The resin composition of the present invention can further comprise acrylic resin (C). The acrylic copolymer with ultra-low molecular weight and high refractive index (B) can have a refractive index of about 1.495 to about 1.590 and a weight average molecular weight of about 3,000 to about 40,000 g/mol.06-17-2010
20100168272Polycarbonate Resin Composition with Improved Scratch Resistance and Melt Flow Index - A polycarbonate resin composition of the present invention comprises about 40 to about 99% by weight of a polycarbonate resin (A), about 1 to about 60% by weight of an acrylic copolymer (B) having a high refractive index and a flexible structure, and about 0 to about 60% by weight of acrylic resin (C). A polycarbonate resin composition of the present invention can have excellent transparency and scratch resistance without requiring extra compatibilizers by including an acrylic copolymer having a high refractive index and a flexible structure with the polycarbonate resin.07-01-2010
20110160377Thermoplastic Resin Composition Having Improved Impact Strength and Melt Flow Properties - The present invention provides an aromatic vinyl thermoplastic resin composition including (A) about 10 to about 99% by weight of a thermoplastic resin (A) including (a1) an aromatic vinyl copolymer resin, (a2) a rubber-modified vinyl graft copolymer, or a combination of (a1) and (a2); and (B) about 1 to about 90% by weight of a branched aromatic vinyl copolymer resin including a silicon based compound. The thermoplastic resin composition of the present invention can have excellent impact strength, improved flow properties, and compactability.06-30-2011
20110160380Polycarbonate Resin Composition with Excellent Scratch Resistance and Impact Strength - A polycarbonate resin composition according to the present invention comprises a polycarbonate resin and an ultra-high molecular weight branched acrylic copolymer resin and can have excellent transparency, appearance, and flowability, as well as scratch resistance and impact strength.06-30-2011
20110160383Transparent Thermoplastic Resin Composition with Improved Impact Strength and Melt Flow Index - The present invention provides a transparent thermoplastic resin composition which may comprise (A) about 1 to about 100 parts by weight of an ultra-high molecular weight branched acrylic copolymer resin; (B) about 0 to about 99 parts by weight of an acrylic resin; and (C) about 0 to about 40 parts by weight of an acrylic impact modifier, based on 100 parts by weight of (A) and (B). The ultra-high molecular branched acrylic copolymer resin (A) may be prepared by polymerizing a monomer mixture comprising (a1) about 50 to about 99.899% by weight of a mono-functional monomer, (a2) about 0.1 to about 40% by weight of a (meth)acrylic monomer having a flexible segment represented following Chemical Formula 1, and (a3) about 0.001 to about 10% by weight of a branch-inducing monomer. The thermoplastic resin composition of the present invention can have improved transparency, scratch resistance, flowability, and impact strength.06-30-2011
20110160400Phosphoric and Acrylic Copolymer Resin Having Excellent Transparency and Flame Retardancy and Resin Composition Including the Same - The present invention provides a phosphoric and acrylic copolymer resin that can have good transparency, scratch resistance and flame retardancy and a composition including the same. The phosphoric and acrylic copolymer resin includes repeat units of (A-1) at least one vinyl monomer and (A-2) at least one phosphoric monomer.06-30-2011

Kyu Ha Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20100172016Electrophoretic display having high reflectance and contrast - An electrophoretic display includes a first substrate having a thin film transistor and a pixel electrode, a second substrate disposed to face the first substrate, an electrophoretic membrane interposed between the first and second substrates, and an optical member between the second substrate and the electrophoretic membrane, the optical member being configured to reflect light incident thereon, and a surface of the electrophoretic membrane facing the optical member being conformal to a shape of the optical member.07-08-2010

Min-Kook Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20100099043Positive Photosensitive Resin Composition - Disclosed is a positive photosensitive resin composition that includes (A) a first polybenzoxazole precursor that includes: a repeating unit of Chemical Formula 1 and a thermally polymerizable functional group at least one terminal end; (B) a second polybenzoxazole precursor that includes a repeating unit of Chemical Formula 3; (C) a photosensitive diazoquinone compound; (D) a silane compound; and (E) a solvent.04-22-2010
20110111346Positive Photosensitive Resin Composition - Disclosed is a positive photosensitive resin composition that includes: (A) a polybenzoxazole precursor including a repeating unit represented by the Chemical Formula 1, a repeating unit represented by the Chemical Formula 2, or a combination thereof, and a thermally polymerizable functional group at least one terminal end of the polybenzoxazole precursor; (B) a photosensitive diazoquinone compound; (C) a silane compound; (D) a phenol compound including a cross-linking functional group; and (E) a solvent.05-12-2011
20110159428Positive Type Photosensitive Resin Composition - This disclosure relates to a positive photosensitive resin composition including (A) a resin precursor including a polybenzoxazole precursor, a polyamic acid, or a combination thereof, (B) a dissolution-controlling agent having a boiling point ranging from about 210° C. to about 400° C. and a polarity ranging from about 1D to about 4D, (C) an acid generator, (D) a silane-based compound, and (E) a solvent. The polybenzoxazole precursor includes a repeating unit represented by Chemical Formula 1, or both of repeating units represented by Chemical Formulae 1 and 2 and has a thermally polymerizable functional group at least one end. The polyamic acid includes a repeating unit of Chemical Formulae 50 and 51.06-30-2011

Yong Jin Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20100167212RESIST UNDERLAYER COMPOSITION AND METHOD OF MANUFACTURING INTEGRATED CIRCUIT DEVICE USING THE SAME - A resist underlayer composition and a method of manufacturing a semiconductor integrated circuit device, the resist underlayer composition including a solvent and an organosilane-based polymer, the organosilane-based polymer being a polymerization product of at least one first compound represented Chemical Formulae 1 to 3 and at least one second compound represented by Chemical Formulae 4 and 5.07-01-2010
20100279509Silicon-based hardmask composition and process of producing semiconductor integrated circuit device using the same - A silicon-based hardmask composition, including an organosilane polymer represented by Formula 1:11-04-2010

Young-Mi Chung, Uiwang-Si KR

Patent application numberDescriptionPublished
20090306287Polylactic Acid Resin Composition - The present invention relates to a polylactic acid resin composition. The composition includes about 25 to about 80 parts by weight of a polylactic acid resin, (B) about 20 to about 75 parts by weight of a polycarbonate resin, and (C) about 0.01 to about 5 parts by weight of a chain extender including an amine group, based on about 100 parts by weight of (A)+(B). The polylactic acid resin composition of the present invention is environmentally-friendly and has excellent hydrolysis resistance and simultaneously improved mechanical strength and heat resistance, and accordingly can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example vehicles, machine parts, electronic parts, office machines, miscellaneous goods, and the like.12-10-2009
20100056700Environmentally-Friendly Polylactic Acid Resin Composition - An environmentally-friendly polylactic acid resin composition includes (A) a mixed resin including (a1) a polylactic acid (PLA) resin and (a2) a polycarbonate resin, and (B) a compatibilizer capable of forming a stereo-complex with the polylactic acid resin. According to the present invention, the polylactic acid resin composition is environmentally-friendly and has excellent appearance and improved welding impact strength, as well as improved mechanical strength and heat resistance. Accordingly, it can be used for manufacturing various molded products requiring heat resistance and mechanical strength, for example electronic parts, office machines, miscellaneous goods, and the like.03-04-2010
20100125112Natural Fiber-Reinforced Polylactic Acid Resin Composition and Molded Product Made Using the Same - Disclosed is a natural fiber-reinforced polylactic acid resin composition that includes (A) a first polylactic acid resin; and (B) a natural fiber surface-treated with a second polylactic acid resin. The second polylactic acid resin can include a different isomer from the first polylactic acid resin, or alternatively, when measured under isothermal conditions after quenching from about 240° C. to a crystallization temperature, a spherulite crystal is first formed at a surface of the natural fiber and the growth rate at the surface is faster than at other positions. A molded product made using the natural fiber-reinforced polylactic acid resin composition is also disclosed.05-20-2010
20100160558Polyhydroxy Alkanoate Resin Composition and Molded Product Made Using the Same - Disclosed are a polyhydroxy alkanoate resin composition including (A) a polyhydroxy alkanoate resin and (B) a vinyl-based copolymer resin including (B-1) a copolymer including two or more monomers comprising an aromatic vinyl monomer, an unsaturated nitrile monomer, an acryl-based monomer, or a combination thereof; and (B-2) a rubber-modified vinyl-based graft copolymer and a molded product fabricated using the same.06-24-2010
20100160559Polylactic Acid/Polycarbonate Resin Composition and Molded Product Made Using the Same - Disclosed is a polylactic acid/polycarbonate resin composition including (A) a mixed resin including (a1) a polycarbonate resin and (a2) a polylactic acid resin, and (B) a modified acrylic-based resin, and a molded product made using the same.06-24-2010
20100168332Polylactic Acid Resin Composition and Molded Product Using the Same - Disclosed are a polylactic acid resin composition that includes (A) about 10 to about 80 wt % of a polylactic acid resin; (B) about 5 to about 50 wt % of a rubber modified vinyl-based graft copolymer; (C) about 10 to about 80 wt % of a vinyl-based copolymer; and (D) about 5 to about 75 wt % of poly(meth)acrylic acid alkyl ester, and a molded product made using the same.07-01-2010