Abstract: An antiferroelectric and a method for manufacturing an antiferroelectric are disclosed herein. The antiferroelectric may have high permittivity and breakdown voltage by having a PbxLa1-x([Zr1-YSnY]ZTi1-Z) composition. The manufacturing of the antiferroelectric may be performed through appropriate mixing and dysprosium addition.

Abstract: A high-voltage antiferroelectric and a method for manufacturing the same are provided. The antiferroelectric has a composition of PbxLa1-x([Zr1-YSnY]ZTi1-Z). The antiferroelectric is sintered at a low temperature, and has a high density and a high breakdown voltage.

Abstract: A high permittivity antiferroelectric composition and a manufacturing method thereof aim to provide an antiferroelectric, which has a PbxLa1-x([Zr1-YSnY]ZTi1-Z) composition, is sintered at low temperatures, and has a high density and a high permittivity.

Abstract: A method of manufacturing a dielectric for a capacitor and a dielectric for a capacitor manufactured thereby are provided. A dielectric for a capacitor is prepared by calcining a precursor mixture containing lead, lanthanum, zirconium, and titanium to produce calcined powder, adding additives including sodium, potassium, and the like to the powder, and sintering the mixture at a low temperature, whereby the dielectric has a high density and a large dielectric constant.

Abstract: Provided is an alumina composite ceramic composition which has electrical insulation properties as well as better mechanical strength and thermal conductivity than a typical alumina-based material. Thus, the alumina composite ceramic composition is promising for a material of a substrate or an insulating package of an electronic device. The alumina composite ceramic composition of the present invention may include alumina (Al2O3), zirconia (ZrO2) or yttria-stabilized zirconia as a first additive, and graphene oxide and carbon nanotubes, as a second additive. In this case, in consideration of two aspects of sinterability and electrical resistivity characteristics of the alumina composite ceramic composition, the graphene oxide may be appropriately adjusted to be in the form of a graphene oxide phase and a reduced graphene phase which coexist in the alumina composite ceramic composition.

Abstract: Provided is an alumina composite ceramic composition which has electrical insulation properties as well as better mechanical strength and thermal conductivity than a typical alumina-based material. Thus, the alumina composite ceramic composition is promising for a material of a substrate or an insulating package of an electronic device. The alumina composite ceramic composition of the present invention may include alumina (Al2O3), zirconia (ZrO2) or yttria-stabilized zirconia as a first additive, and graphene oxide and carbon nanotubes, as a second additive. In this case, in consideration of two aspects of sinterability and electrical resistivity characteristics of the alumina composite ceramic composition, the graphene oxide may be appropriately adjusted to be in the form of a graphene oxide phase and a reduced graphene phase which coexist in the alumina composite ceramic composition.

Abstract: Disclosed herein is a ZnO-based varistor composition including zinc oxide (ZnO) as a main component and a calcium (Ca)-containing compound as an accessory component. The varistor composition provides excellent electrostatic discharge (ESD) characteristics because it has excellent physical properties, such as a nonlinear coefficient, a clamping voltage ratio, a surge absorbance and the like, and, particularly, does not include Bi2O3. Further, the varistor composition provides high work safety because it does not include Sb2O3 that is regulated for environmental purposes. Further, the varistor composition can reduce the manufacturing cost of a varistor because it does not Pr-based components that require high-temperature sintering and increase the manufacturing cost of a varistor. Particularly, the varistor composition has a low clamping voltage as well as a low capacitance.

Abstract: Provided are a solid oxide fuel cell and a method of manufacturing the same. The solid oxide fuel cell in which at least one or more unit modules are stacked and integrated with each other includes first and second solid electrolyte layers in which each of the unit modules includes a plurality of fuel electrodes spaced a predetermined distance from each other and each having a strip shape and first and second supports each including a plurality of slits each having the same strip shape as that of each of the fuel electrodes. The first and second solid electrolyte layers overlap with each other on lower and upper sides of the first support so that the fuel electrodes face each other within the slits of the first support, and the second support overlaps with a lower side of the first or second solid electrolyte layer overlapping with the lower side of the first support so that the slits of the second support are disposed perpendicular to the slits of the first support.

Abstract: Disclosed herein is a ZnO-based varistor composition including zinc oxide (ZnO) as a main component and a calcium (Ca)-containing compound as an accessory component. The varistor composition provides excellent electrostatic discharge (ESD) characteristics because it has excellent physical properties, such as a nonlinear coefficient, a clamping voltage ratio, a surge absorbance and the like, and, particularly, does not include Bi2O3. Further, the varistor composition provides high work safety because it does not include Sb2O3 that is regulated for environmental purposes. Further, the varistor composition can reduce the manufacturing cost of a varistor because it does not Pr-based components that require high-temperature sintering and increase the manufacturing cost of a varistor. Particularly, the varistor composition has a low clamping voltage as well as a low capacitance.

Abstract: Provided are a solid oxide fuel cell and a method of manufacturing the same. The solid oxide fuel cell in which at least one or more unit modules are stacked and integrated with each other includes first and second solid electrolyte layers in which each of the unit modules includes a plurality of fuel electrodes spaced a predetermined distance from each other and each having a strip shape and first and second supports each including a plurality of slits each having the same strip shape as that of each of the fuel electrodes. The first and second solid electrolyte layers overlap with each other on lower and upper sides of the first support so that the fuel electrodes face each other within the slits of the first support, and the second support overlaps with a lower side of the first or second solid electrolyte layer overlapping with the lower side of the first support so that the slits of the second support are disposed perpendicular to the slits of the first support.

Abstract: A method for manufacturing a multilayer chip capacitor includes: forming screen patterns on mother green sheets such that a widthwise margin is not formed on the mother green sheets, the screen patterns are spaced apart from each other in the width direction and the longitudinal direction, and a width of each screen pattern is greater than a spacing between the adjacent screen patterns; forming internal electrode patterns on the mother green sheets; forming a stack of the mother green sheets; forming a capacitor body having internal electrodes by cutting the stack of the mother green sheets along cutting lines arranged in the width direction and the longitudinal direction; forming chip-protecting side members on both sides of the capacitor body such that the chip-protecting side members contact both sides of the internal electrodes, respectively; and forming a pair of terminal electrodes on the outer surface of the capacitor body.

Abstract: A printed circuit board material for embedded passive devices, which has excellent electromagnetic properties and reliability is provided. The invention provides a printed circuit board material comprises: a conductive copper foil layer; a resin bonding layer formed on the conductive layer and including above 70-100 vol % of resin and 0-30 vol % of filler; and a functional layer formed on the resin bonding layer and including resin and filler. The printed circuit board material has the resin bonding layer interposed between the copper foil layer and the functional layer. Thus, even when the content of fillers in the functional layer is increased, the adhesion strength between the conductive layer and the functional layer is ensured without deteriorating the properties of the functional layer, such as dielectric and magnetic properties.

Abstract: Disclosed is a composition for forming a dielectric, which is applied to an embedded capacitor with a high dielectric constant, a capacitor produced using the composition, and a PCB provided with the capacitor. The composition includes 40 to 99 vol % of thermoplastic or thermosetting resin, and 1 to 60 vol % of semiconductive filler. Alternatively, the composition includes 40 to 95 vol % of thermoplastic or thermosetting resin, and 5 to 60 vol % of semiconductive ferroelectric substance. Furthermore, the present invention provides the capacitor, produced using the composition, and the PCB provided with the capacitor. Therefore, the dielectric, which is produced using the composition including the semiconductive filler or semiconductive ferroelectric substance, is advantageous in that the dielectric constant is high and a dielectric loss is low. The dielectric is usefully applied to produce an embedded capacitor with the high dielectric constant and the PCB provided with the embedded capacitor.

Abstract: A method for fabricating a field emitter electrode includes the steps of: providing an electrolytic solution containing metal ions to an electrolytic bath; providing carbon nanotubes and a cationic dispersant for preventing the agglomeration of the carbon nanotubes to the electrolytic solution; and applying a predetermined voltage to a cathode drum and an insoluble anodic compartment, both of which are immersed in the electrolytic solution, and forming a metal film containing the carbon nanotubes along the surface of the cathode drum.

Abstract: A method for manufacturing a multilayer ceramic capacitor, in which internal electrodes printed on each of a plurality of dielectric sheets have reduced thicknesses using an absorption member, thereby allowing the multilayer ceramic capacitor to have a high capacity and be minimized. The method includes printing the internal electrodes on each of the dielectric sheets, and stacking the dielectric sheets, wherein the internal electrodes formed on each of the dielectric sheets have a reduced thickness by causing an absorptive member to contact the surface of each of the dielectric sheets provided with the internal electrodes and then separating the absorptive member from the surface so that portions of the internal electrodes having a designated thickness are eliminated, and the dielectric sheets provided with the internal electrodes having the reduced thickness are stacked to form a chip element.

Abstract: A multilayer chip capacitor, and a method for manufacturing the same are provided. The capacitor includes a capacitor body having a plurality of dielectric layers stacked therein, a plurality of first and second internal electrodes formed on the dielectric layers, each of the internal electrodes including a main electrode portion and a lead portion, chip-protecting side members formed on both sides of the capacitor body to contact both sides of the first and second internal electrodes, and a pair of external electrodes formed on the outer surface of the capacitor body. The width of the main electrode portion is the same as that of the dielectric layers, and the width of the lead portion is smaller than that of the dielectric layers.

Abstract: Disclosed herein is a method of manufacturing a multilayered ceramic capacitor by a spin coating process, and a multilayered ceramic capacitor obtained by the above method. The method of the current invention provides a plurality of dielectric layers formed by spin coating, in which the process of coating the dielectric layer and the process of printing the inner electrode can be provided as a single process. Therefore, the thickness of the dielectric layer is easily controlled while the dielectric layer is formed to be thin. Further, since the dielectric layers and the inner electrodes are formed successively, the processes of separating and layering the dielectric layers, and the process of compressing the ceramic multilayered body can be omitted. Thereby, the ceramic multilayered body need not be compressed, and thus, a pillowing phenomenon does not occur in the multilayered ceramic capacitor.

Abstract: A glass frit for dielectrics, a dielectric ceramic composition, a multilayer ceramic capacitor, and a method for manufacturing the same are disclosed. The glass frit has a composition represented by the formula aSiO2-bB2O3-cLi2O-dK2O-eCaO-fAl2O3-gTiO2-hZrO2, wherein the ratio of components satisfies the conditions of 20?a?35, 20?b?35, 20?c?30, 3?d?5, 2?e?12, 2?f?10, 1?g?12 and 1?h?7 in terms of mol % where a+b+c+d+e+f+g+h=100. The dielectric ceramic composition comprises 100 parts by weight of (Ca1-xRx)(Zr1-yTiy)O3, 0.5˜2.5 parts by weight of the glass frit, and 1.0˜5.0 parts by weight of a Mn compound. Additionally, the multilayer ceramic capacitor, and the method for manufacturing the same also use the glass frit having the above composition. The ratio of tetracoordinate boron to tricoordinate boron is increased in a lithium borosilicate glass, thereby enhancing structural property, and the components of Al2O3, TiO2 and ZrO2, enhance acid resistance.

Abstract: The present invention relates to a cosmetic applicator. The cosmetic applicator comprises a rod and a brush. The applicator is formed with a fixing portion pressed to be flat at a lower end of the rod into which the brush is fixedly inserted. Since the brush has a flat face defined by the fixing portion, a region that requires delicate operation can be easily cosmeticized. Further, even when the brush is caused to enter and be withdrawn from a container with a small mouth, it is possible to prevent the brush from being curved outward or bristles of the brush from being entangled. Moreover, since the fixing portion is formed in the rod itself, there is no need for an additional means for making the brush in a flattened shape. Thus, the number of components for the cosmetic applicator can be reduced while an effect of application of cosmetics is further improved. Accordingly, production costs of the cosmetic applicator can be lowered and productivity thereof can also be enhanced.

Abstract: Disclosed herein is a method for fabricating a field emitter electrode. The method comprises the steps of: providing an electrolytic solution containing metal ions to an electrolytic bath; providing carbon nanotubes and a cationic dispersant for preventing the agglomeration of the carbon nanotubes to the electrolytic solution; and applying a predetermined voltage to a cathode drum and an insoluble anodic compartment, both of which are immersed in the electrolytic solution, and forming a metal film containing the carbon nanotubes along the surface of the cathode drum.

Abstract: The invention relates to a product to permit separation of cells in the domain of immunopurification and consisting of a finely divided carrier of a density lower than that of the medium from which such cells must be extracted, such carrier being covered with macromolecules capable of being specifically fixed to the cells to be extracted to which a priviliged orientation was given to enable fixation of such macromolecules.