Method for manufacturing metal powder and multilayer ceramic capacitor

Abstract

PROBLEM TO BE SOLVED: To provide a method of producing metal powder consisting of fine particles with a uniform size distribution by using an aqueous solvent, and a multilayer ceramic capacitor using the powder.SOLUTION: A method comprises: preparing a first solution containing a metal precursor and an aqueous solvent; preparing a second solution containing a nitrogen (N)-containing surfactant, a reductant and an aqueous solvent; heating the second solution; mixing the heated second solution and the first solution to prepare a third solution; and agitating the third solution to obtain metal particles from whose surfaces nitrogen (N) is detected.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2013-0102966 filed with the Korean Intellectual Property Office on Aug. 29, 2013, the disclosure of which is hereby incorporated by reference. technical field [0002] The present invention relates to a method of manufacturing metal powder and a multilayer ceramic capacitor. Background technique [0003] In general, electronic components using ceramic materials such as capacitors, inductors, piezoelectric elements, varistors, thermistors, etc. include a ceramic body formed of ceramic materials, internal electrodes formed in the ceramic body, and surfaces mounted on the ceramic body. on to connect the external electrodes to the internal electrodes. [0004] Generally, external electrodes are manufactured by using a paste including conductive metal powder. In order to develop an external electrode having excellent performance, research on a metal powder formed of fine particles having a uniform par...

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Problems solved by technology

[0005] The method of producing particles using the gas phase method is advantageous for the production of nanoparticles; however, the method is relatively complicated, and there are problems in producing nanoparticles with uniform quality using this method, and in addition, the method has considerable problems in terms of environmental pollution , and it is difficult to take into account the safety of the working environment due to the high risk of explosion during the manufacturing process

[0006] At the same time, the advantage of the wet synthesis method of making particles is that the yield is high, specifically, the method has a high yield compared to noble metals, but there should be problems in applying non-water-based solvents here

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