파우더 형상에 따른 패드 인쇄용 실버 페이스트의 물성 연구

Abstract

Study properties of pad printing silver paste according to the powder form

Yeong-Hwan Kim

Dept. of Graphic Arts Engineering, Graduate School, Pukyong National University

Abstract Mobile phones, Digital cameras, DVD (Digital video disk), PDP (Plasma display panel), LCD (Liquid crystal display), DMB (Digital multimedia broadcasting) and other digital consumer electronics market grows significantly, semiconductors and other electronic parts and equipment needs for the manufacturing process has also changed significantly. IC (Integrated circuit), electronic components, LCD, PDP, OLED (Organic light emitting diode) and the display market, in addition to donor-acceptor type of organic solar cells, titanium dioxide, zinc oxide, etc., such as dye-sensitized solar cells and fuel cells, even in the energy sector of the new As the commercialization of the production process closer to the simplification and process are being explored to reduce cost. Production of printed electronics technology can be applied to the case of cleaner production, and increase productivity by reducing process waste from the exposure process and the material cost reductions through cost savings can be used to improve the competitiveness of the product. The process can enable low-temperature plastic substrate, and through it, and so can easily form a large-area thin-film process is made possible. Current specific application (RFID(Radio frequency identification) , Display for the Color filter, etc.) are being commercialized in a variety of print methods to achieve this is through. A method of forming a conductive pattern on an existing, but mainly using a screen printing method, the screen printing is usually flat or round surface that is printable only marginal. Unlike these screen-printing, after dug thin pad printing flat iron plate, after etching by the ink was applied, it issues taken with silicone pad is free on the product shape in the printing method of printing the remanufactured . Compared to the screen there products are an advantage capable also an oval shape with high precision, but thinner the thickness of the print, the initial cost and the time-consuming bit more. In this study, a screen printing process in order to complement the limitations in the printing process as described above, after the comparative analysis of the pad printing process which has been studied and a superior electrical conductivity along the powder form by considering the physical properties to ensure adhesion and excellent pattern was the goal of research. In this study, a screen printing process in order to complement the limitations in the printing process as described above, after the comparative analysis of the pad printing process which has been studied and a superior electrical conductivity along the powder form by considering the physical properties to ensure adhesion and excellent pattern was the goal of research.