MLCC의 내부전극 형성을 위한 스크린 인쇄용 니켈 페이스트의 물성연구

Abstract

The electronics industry is continuously developing. In order to satisfy the required performance of each product, the requirements of component that have a variety of functions or a particular function is increased. Since 2000, the trend to miniaturization of electronic components, as well as multiple functions has been rapidly progressing. Miniaturization and performance enhancement of electronic components have also been proceeding rapidly. In particular, a smart phone using touch screen panel, a tablet PC, etc. a variety of products has continued to rapid development. The small size and high capacity requirements of the MLCC (Multi Layer Ceramic Condenser) is increasing. MLCC of electronic goods based on a ceramic material that is a key component. Communications, consumer electronics, computer, automotive industry is a key market. particular, Digital Products such as PC, mobile phone, smart phone, digital TV is used in many products. The size and performance of electronic products depends on the MLCC. Therefore, the research for miniaturization and high capacity continues to progress. MLCC is composed of a dielectric material, the inner electrode, the outer electrode. As forming a thin dielectric layer and the electrode, the miniaturization becomes possible. The internal electrode is formed by printing and firing a paste of the uniformly dispersed metal powder and glass frit in a high-viscosity liquid to a dielectric sheet. Conventionally, the Pd was used as the electrode material. However, the nickel was converted to the price issue of Pd. Also, preparation method was converted to gravure printing method in a screen printing method. MLCC manufacturer was used screen printing for several reasons. However, due to the limitation of the thickness printable 4~5㎛, the MLCC manufacture using a gravure printing method for a thin film. I think if using 50∼100㎚ size Ni powder, Screen printing can be produced. The aim of this study is to create formulations that the nickel paste for screen printing, which can be the thickness 1.2㎛ after firing.