Glass powder and method of manufacturing the same

Abstract

Provided are a glass powder represented as aLi2O-bK2O-cBaO-dB2O3-eSiO2 wherein a+b+c+d+e=1, and 0.01≦a≦0.1, 0.01≦b≦0.1, 0.01≦c≦0.1, 0.05≦d≦0.3, and 0.3≦e≦0.7 are satisfied in terms of mol %, a method of manufacturing the same, and a multi-layered ceramic material using the same.Therefore, a nano glass powder having an average particle size of 100 nm or less and uniform particle size distribution can be manufactured using liquid phase deposition, specifically, a sol-gel method.In addition, the glass powder can be used as sintering additives to decrease a sintering temperature by about 100° C. in comparison with conventional glass upon manufacture of a ceramic material such as MLCC and MLCI, which can be sintered at a low temperature, contributing to improvement of dielectric capacity and inductance capacity of the parts and increasing quality coefficient.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of Korean Patent Application No. 10-2011-0004999 filed with the Korea Intellectual Property Office on Jan. 18, 2011, the disclosure of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a glass powder used in a multi-layered ceramic material and a method of manufacturing the same.[0004]2. Description of the Related Art[0005]In recent times, as mobile telecommunication markets including mobile phones grown, demands of ceramics are being increased as materials for electronic circuit board or multi-layered ceramic electronic parts. As a high conductivity material having a low melting point such as Ag, Cu, etc., is used for internal interconnection circuits, products formed of a ceramic material that can be formed through low-temperature plasticization are also needed.[0006]BaTiO3, Ba(Ca)TiO3, BaTi4O9, etc., are used as ...

AI Technical Summary

Benefits of technology

The present invention pertains to a ceramic material that can be plasticized at a low temperature using glass powder. The technical effect of this invention is the provision of a multi-layered ceramic material that can be easily shaped and formed at low temperatures.

Problems solved by technology

Now, a glass powder formed of five elements or more is generally manufactured through a melt-quenching method, and the manufactured powder has a size of micrometer and non-uniform particle size distribution.

However, since the particle size cannot be reduced to 0.5 μm or less, a large number of layers cannot be substantially stacked as a thin film sheet.

In addition, when a method of forming a sheet is applied, since dispersion of the sheet is deteriorated, a forming sheet cannot be easily manufactured.

However, the crushing method using milling cannot easily crush the powder to a particle size of about 0.5 μm or less, and thus, the powder has a non-uniform particle distribution.

Images