Kang, Chungcheongbuk-Do
Gue Ssuk Kang, Chungcheongbuk-Do KR
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20150314559 | WAVED MELTBLOWN FIBER WEB AND PREPARATION METHOD THEREFOR - A waved meltblown fiber web of the present invention relates to a fiber web prepared by a meltblown method and is characterized by a preparation method in which a meltblown microfiber comes in contact with collection portions having different surface velocities so as to be collected. The waved meltblown fiber web of the present invention is characterized in that: a part of meltblown microfibers reaches a low velocity collection portion so as to be horizontally layered, thereby forming a horizontal fiber layer ( | 11-05-2015 |
In Soo Kang, Chungcheongbuk-Do KR
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20110260336 | WAFER LEVEL SEMICONDUCTOR PACKAGE AND FABRICATION METHOD THEREOF - A wafer level semiconductor package is provided. A warpage control barrier line formed in every package of a single wafer prevents wafer from warping. The changed shape of the interface between a semiconductor chip and a molding layer at the edge of the package disperses stress applied to the outside of the package, and suppress the generation and propagation of crack. The size of the package is reduced to that of the semiconductor, and the thickness of the package is minimized. | 10-27-2011 |
20110285015 | BUMP STRUCTURE AND FABRICATION METHOD THEREOF - There is provided a bump structure for a semiconductor device, comprising a metal post formed on and electrically connected to an electrode pad on a substrate, a solder post formed on the top surface of the metal post, said solder post having the same horizontal width as the metal post and the top surface of the solder post being substantially rounded, and an intermetallic compound layer disposed at the interface between the metal post and the solder post. An oxide layer formed on the solder post prevents solder post under reflow from being changed into a spherical shape. An intermetallic compound layer may be formed by an aging process at the interface between the metal post and the solder post. The bump structure can realize fine pitch semiconductor package without a short between neighboring bumps. | 11-24-2011 |
Kwang Choong Kang, Chungcheongbuk-Do KR
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20090186225 | Flaky Alpha-Alumina Crystal and a Method of Its Preparation - The present invention relates to a flaky α-alumina crystal and a preparation method thereof. More particularly, the present invention relates to a flaky α-alumina crystal comprising aluminum oxide and zinc oxide, which is prepared by hydrolyzing an aluminum precursor solution containing a water-soluble flux and a zinc precursor solution to obtain a gel mixture and aging, drying, calcining and crystallizing it under a specific reaction condition, and a preparation method thereof. Since the flaky α-alumina crystal of the present invention has a thickness of less than 0.5 μm, an average particle diameter of at least 15 μm and an aspect ratio of at least 50, it is useful as high-quality pearlescent pigment material and filler for ceramic materials. | 07-23-2009 |
20090320719 | PEARLESCENT PIGMENTS WITH LARGE ASPECT RATIO AND A METHOD OF THEIR PREPARATION - The present invention relates to a pearlescent pigment with large aspect ratio and a method of their preparation, and particularly to pearlescent pigments prepared by coating a metal or metal precursor on the flaky alpha-alumina crystals obtained by using an aluminum precursor aqueous solution and a zinc precursor aqueous solution as main ingredients. The crystals herein has an average particle thickness of 0.5 μm or less, an average particle diameter of 15 μm or higher and a large aspect ratio of 50 or higher, thereby being superior in gloss. The crystals show metal colors and interference colors of silver, gold, red, purple, blue and green. | 12-31-2009 |
20100015445 | FLAKY ALPHA-ALUMINA CRYSTALS WITH LARGE ASPECT RATIO AND A PREPARATION METHOD OF THE SAME - The present invention relates to flaky alpha-alumina crystals with large aspect ratio and its preparation method, and particularly to flaky alpha-alumina crystals comprising aluminum oxide, zinc oxide and tin oxide, which are prepared by obtaining a mixed gel which are prepared by obtaining a mixed gel by means of hydrolysis of an aqueous aluminum precursor solution comprising aqueous flux, aqueous zinc precursor solution and tin precursor aqueous solution, followed by aging, drying and crystallization processes. The crystals herein have an average particle thickness of 0.5 um or less, an average particle diameter of 30 μm or higher and an aspect ratio of 100 or higher, thus being useful as a substrate of high quality pearlescent pigments, an abrasive, ceramic material and a filling material. | 01-21-2010 |
20100089291 | FLAKE PIGMENT AND PREPARATION METHOD THEREOF AND COSMETIC USING THE SAME - The present invention relates to a flake pigment, a preparation method thereof and a cosmetic composition comprising the same, and particularly to a flake pigment prepared by coating a metal oxide on the surface of a flake synthetic aluminum having predetermined ranges of an aspect ratio and an average particle diameter, wherein the pigment shows interference colors while reducing the glossiness, thereby enabling cosmetics containing the pigments to be superior in natural transparency and adhesive and slipping properties as well as in color expression and a mat feel due to a low glossiness, along with a preparation method thereof and a cosmetic composition comprising the same. | 04-15-2010 |
Seog-Goo Kang, Chungcheongbuk-Do KR
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20080200593 | Functional Adhesive, Construction Material Using the Same, and Method For Preparing the Adhesive - Provided is a functional adhesive including or a mixture thereof, wherein the flavonoid-based compound, the polyphenol-based compound, or the steroid-based compound has a molecular weight of 250 to 1000. The functional adhesive has a low concentration of VOCs and HCHO, and also facilitates a low concentration of VOCs in products to which the functional adhesive is applied. | 08-21-2008 |
Seoung Hyun Kang, Chungcheongbuk-Do KR
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20080265335 | SEMICONDUCTOR DEVICE AND METHOD OF FORMING GATE AND METAL LINE THEREOF - A gate in a semiconductor device is formed to have a dummy gate pattern that protects a gate. Metal lines are formed to supply power for a semiconductor device and transfer a signal. A semiconductor device includes a quad coupled receiver type input/output buffer. The semiconductor device is formed with a gate line that extends over an active region, and a gate pad located outside of the active region. The gate line and the gate pad are adjoined such that the gate line and a side of the gate pad form a line. Dummy gates may also be applied. The semiconductor device includes a first metal line patterns supplying power to a block having a plurality of cells, a second metal line pattern transferring a signal to the cells, and dummy metal line patterns divided into in a longitudinal direction. | 10-30-2008 |
20120007187 | SEMICONDUCTOR DEVICE AND METHOD OF FORMING GATE AND METAL LINE THEREOF - A gate in a semiconductor device is formed to have a dummy gate pattern that protects a gate. Metal lines are formed to supply power for a semiconductor device and transfer a signal. A semiconductor device includes a quad coupled receiver type input/output buffer. The semiconductor device is formed with a gate line that extends over an active region, and a gate pad located outside of the active region. The gate line and the gate pad are adjoined such that the gate line and a side of the gate pad form a line. Dummy gates may also be applied. The semiconductor device includes a first metal line patterns supplying power to a block having a plurality of cells, a second metal line pattern transferring a signal to the cells, and dummy metal line patterns divided into in a longitudinal direction. | 01-12-2012 |
Seungbeom Kang, Chungcheongbuk-Do KR
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20120086096 | CONDENSER LENS-COUPLED PHOTOCONDUCTIVE ANTENNA DEVICE FOR TERAHERTZ WAVE GENERATION AND DETECTION AND FABRICATING METHOD THEREOF - Provided are a condenser lens-coupled photoconductive antenna device for terahertz wave generation and detection and a fabricating method thereof. A condenser lens-coupled photoconductive antenna device for terahertz wave generation and detection includes a condenser lens, a photoconductive thin film deposited on the condenser lens, and a metal electrode formed on the photoconductive thin film for a photoconductive antenna. In the antenna device, the condenser lens and the photoconductive thin film are coupled to each other. | 04-12-2012 |
20130153757 | WAVEGUIDE PHOTOMIXER - Provided is a waveguide photomixer in which an absorption layer is selectively etched to reduce a junction area. The waveguide photomixer includes a buffer layer disposed on a substrate, a first clad layer disposed on the buffer layer and formed to have smaller width than that of a top surface of the buffer layer, an absorption layer disposed on the first clad layer and formed to have smaller width than that of a top surface of the first clad layer, a second clad layer disposed on the absorption layer and formed to have greater width than that of a top surface of the absorption layer, a contact layer disposed on the second clad layer, a first electrode unit disposed on the buffer layer where the first clad layer is not disposed, and a second electrode unit disposed on the contact layer. | 06-20-2013 |
20130156436 | TERAHERTZ RECEIVER AND METHOD OF RECEIVING TERAHERTZ BAND SIGNAL THEREOF - The inventive concept relates to a terahertz receiver. The terahertz receiver of the inventive concept includes a plurality of terahertz detectors detecting signals of terahertz band from received signals; a plurality of optical signal processing parts converting the detected terahertz signals into optical signals; an optical combiner combining the converted optical signals into one optical signal; a photodiode converting the combined optical signal into an electrical signal; and an amplifier amplifying the electrical signal. | 06-20-2013 |
Seung Beom Kang, Chungcheongbuk-Do KR
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20100155605 | TERAHERTZ WAVE TX/RX MODULE PACKAGE AND METHOD OF MANUFACTURING THE SAME - Provided are a terahertz wave transmission and reception (Tx/Rx) module package and method of manufacturing the same. The complete and separate terahertz wave Tx/Rx module package is implemented by simply aligning a silicon ball lens, a photoconductive antenna and a focusing lens, and thus facilitates generation or measurement of a terahertz wave. The terahertz wave Tx/Rx module package and method can remarkably reduce time and cost required to build a terahertz wave generation and measurement system, and simplify and miniaturize the terahertz wave generation and measurement system. In addition, characteristics of a terahertz wave generated by the photoconductive antenna can be simply measured. Furthermore, the terahertz wave Tx/Rx module package can be stored and transported with a photoconductive antenna, a silicon ball lens and a focusing lens kept aligned as they are, and also it is possible to minimize pollution of terahertz wave devices caused by surroundings. | 06-24-2010 |
20120112230 | INTEGRATED ANTENNA DEVICE MODULE FOR GENERATING TERAHERTZ CONTINOUS WAVE AND FABRICATION METHOD THEREOF - The exemplary embodiments of the present invention include forming a photoconductor thin film on a front surface of a substrate; forming a photoconductor thin film pattern by patterning the photoconductor thin film; and forming a metal electrode on the photoconductor thin film pattern. | 05-10-2012 |
20120166144 | DEVICE CHARACTERISTICS MEASUREMENT METHOD USING AN ALL-OPTOELECTRONIC TERAHERTZ PHOTOMIXING SYSTEM AND SPECTRAL CHARACTERISTICS MEASUREMENT METHOD OF TERAHERTZ MEASURING APPARATUS USING THE SAME - A device characteristics measurement method using an all-optoelectronic terahertz photomixing system includes: calculating power of an antenna of a transmitter by adding a matching condition between output impedance of the photomixer and input impedance of the antenna of the transmitter to power of the photomixer of the transmitter; calculating power of an antenna of a receiver based on the power of the antenna of the transmitter; and outputting the power of the antenna of the transmitter and the power of the antenna of the receiver so as to analyze device characteristics of the photomixer and the antenna of the transmitter. | 06-28-2012 |
Su Jin Kang, Chungcheongbuk-Do KR
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20160081978 | PHARMACEUTICAL COMPOSITION CONTAINING LIRIODENDRON TULIPIFERA L. EXTRACT FOR TREATING CHRONIC MYELOGENOUS LEUKEMIA - The present invention relates to a pharmaceutical composition containing, as an active ingredient, a | 03-24-2016 |
Yang-Beom Kang, Chungcheongbuk-Do KR
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20120018840 | ELEMENT ISOLATION STRUCTURE OF SEMICONDUCTOR AND METHOD FOR FORMING THE SAME - Disclosed are an element isolation structure of a semiconductor device and a method for forming the same, the method including preparing a semiconductor substrate having an inactive region and an active region defined thereon, forming a first hard mask on the semiconductor substrate, exposing the inactive region of the semiconductor substrate by patterning the first hard mask, forming a second hard mask on the entire surface of the semiconductor substrate including the first hard mask, forming a deep trench in the semiconductor substrate by patterning the second hard mask and the semiconductor substrate, removing the patterned second hard mask, forming a shallow trench overlapped with the deep trench by patterning the semiconductor substrate using the first hard mask as a mask, forming an insulation film on the entire surface of the substrate including the shallow trench and the deep trench, filling the shallow trench and the deep trench by forming an element isolation film on the insulation film, and forming an element isolation film pattern in the deep trench and the shallow trench by selectively removing the element isolation film. | 01-26-2012 |
Young-Soo Kang, Chungcheongbuk-Do KR
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20100155889 | CAPACITOR AND METHOD FOR FABRICATING THE SAME - A capacitor includes a lower electrode; a dielectric layer formed on a predetermined portion of the lower electrode; an upper electrode formed on the dielectric layer; a hard mask pattern formed on the upper electrode; and an isolation layer having a shape of a spacer, formed on one sidewall of the hard mask pattern, the upper electrode, and the dielectric layer. | 06-24-2010 |
Yun-Jeong Kang, Chungcheongbuk-Do KR
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20150295223 | DISTILLED WATER FILLING SYSTEM FOR INDUSTRIAL BATTERY - The present invention provides a distilled water tiling system for an industrial battery comprising a distilled water storage tank installed, together with a battery, in a device equipped with the battery and storing a distilled water; a supply hose connected to the distilled water storage tank and supplying the distilled water in the distilled water storage tank into the battery; and an injection valve mounted on the battery and connected to the supply hose, the injection valve selectively blocking a supply of a distilled water to the battery according to an electrolyte level in the battery. | 10-15-2015 |