Abstract: The present invention relates to a method of producing metal nanoparticles and the metal nanoparticles produced thereby and in particular, to a method of producing metal nanoparticles comprising preparing a first solution including a dispersing stabilizer and a polar solvent; preparing a second solution including a metal precursor and a polar solvent; and adding the second solution into the first solution by dividing at least 2 times. According to the present invention, it is possible to produce metal nanoparticles of uniform size and isotropy with high efficiency using small amount of dispersion stabilizer through controlling reaction.

Abstract: The invention provides a method of manufacturing nickel nanoparticles and nickel nanoparticles thus produced, having superior dispersion stability and smooth surface, by reducing after forming nickel-hydrazine complex in a reverse microemulsion, wherein the method includes (a) forming an aqueous solution including nickel precursor, surfactant, and hydrophobic solvent, (b) forming nickel-hydrazine complex by adding a reducing agent that includes hydrazine to the mixture, (c) producing nickel nanoparticles by adding an reducing agent to the mixture that includes said nickel-hydrazine complex.

Abstract: A method of producing a polymer capacitor includes forming a first electrode on a surface of a first ion exchange resin solid and coating a mixture of an ion exchange resin solution and a salt on the other surface of the first resin; putting a second ion exchange resin solid which has a second electrode formed on a surface thereof on the coated layer and conducting lamination of the resulting structure to produce a composite; dissolving the salt to form pores; and filling the pores with an electrolytic solution.

Abstract: The present invention provides a method of producing metal nanoparticles, having a high yield rate achieved by superior dispersion stability even in a polar solvent, producing a large amount of particles of uniform size. Also, the invention provides metal nanoparticles and a producing method of metal nanoparticles, employing a polyacid as a stabilizing agent to control the size of particles even with a smaller amount than using other macromolecular stabilizing agents, allowing the particles to have dispersion stability. According to one aspect of the invention may provide a method of manufacturing metal nanoparticles, using a polyacid as a stabilizing agent to produce nano-sized metal nanoparticles from a metal precursor. Here, a reducing agent may be further added.

Abstract: The present invention relates to a conductive ink having low curing temperature, high stability of dispersion and high conductivity, and the preparation method thereof. The present invention provides a conductive ink comprising a) a metal mixture of metal precursor and amine-based compound; b) metal nano particles capped by a dispersant; and c) an organic solvent. Also, the present invention provides a conductive board having low curing temperature and high conductivity, fabricated using the conductive ink.

Abstract: A method of producing hydrophobic metal nanoparticles using a hydrophobic solvent, having uniform particle size distribution and high yield rate to allow mass production; the metal nanoparticles thus produced; and conductive ink including the metal nanoparticles are disclosed. According to one aspect of the invention, a method of producing metal nanoparticles is provided, comprising dissociating a metal compound with an amine-based compound, and adding a hydrocarbon-based compound and either one of an alkanoic acid or a thiol-based compound to the dissociated metal ion solution.

Abstract: A method of producing an array type multi-layer ceramic capacitor is disclosed, comprising: forming dielectric films, forming dielectric sheets on which internal electrodes and interelectrode dielectrics formed on the same plane as the internal electrodes are printed simultaneously by spraying ink intended for internal electrodes and ink intended for dielectrics onto the dielectric film via a plurality of inkjet printer heads, stacking and compressing the dielectric sheets, cutting the stacked dielectric sheet to include a plurality of internal electrodes on the same plane as the dielectric sheet, and sintering the cut dielectric sheets. The array type multi-layer ceramic capacitor according to the invention can solve the problem of interlayer gaps by printing the dielectrics and internal electrodes simultaneously, and can solve the contact problem by printing the internal electrode and the external electrode as a single body.

Abstract: A multi-layer ceramic capacitor and production method thereof are disclosed, comprising a plurality of dielectric sheets, wherein a first external electrode, a first internal electrode comprising one or more protrusions and joined to the first external electrode, a second external electrode joined as a single body to the first internal electrode, and a second internal electrode joined to the first internal electrode with dielectrics positioned in spaces defined by the protrusions are printed on a cross section of the dielectric sheet, and wherein the dielectric sheets are stacked alternately to be symmetrical, so that the first external electrodes and the second external electrodes are electrically connected and the protrusions of the first internal electrodes and the second internal electrodes are electrically connected. The multi-layer ceramic capacitor and production method thereof as set forth in the invention can maximize the areas of the internal electrodes.

Abstract: The present invention relates to a multi-layer ceramic capacitor printed simultaneously with internal electrode and external electrode by employing an inkjet printing. A method for manufacturing the multi-layer ceramic capacitor comprising first external electrode, dielectric, internal electrode and second external electrode prints simultaneously the first external electrode; the internal electrode which is connected with the first external electrode and formed at an invaginated portion of the dielectric invaginated to allow one side to be opened at one portion; and the second external electrode which is formed integrally with the internal electrode by employing an inkjet printing. According to the present invention, a method for manufacturing the multi-layer ceramic capacitor resolves contact problems by printing integrally the internal electrode and the external electrode and reduces the manufacturing process.

Abstract: The present invention relates to a multi-layer ceramic electronic component and production method thereof. According to the present invention, a method for manufacturing a multi-layer ceramic electronic component comprises forming a dielectric film; and forming a dielectric sheet simultaneously printed with an internal electrode and a dielectric between electrodes formed on the same plate with the internal electrode by spraying ink for the electrode and ink for the dielectric employing a plurality of inkjet print heads on the dielectric film. Thus, the multi-layer ceramic capacitor of the present invention resolves height difference by printing simultaneously a dielectric and an internal electrode.

Abstract: The present invention relates to a multi-layer ceramic capacitor comprising internal electrode formed with a metal which has a melting temperature simultaneously sinterable with a dielectric material, dielectric, and external electrode and a method for preparing the same. According to the present invention, the multi-layer ceramic capacitor comprises a plurality of dielectric sheets; a plurality of internal electrodes of which material is a metal having a melting temperature simultaneously sinterable with the dielectric and formed between the dielectric layers to lead each one end to be exposed to one end surface of the dielectric layer; and external electrode electrically connecting with the end of the exposed internal electrode so that it allows to have a thin thickness and to sinter the internal electrode and the dielectric at the same time.