*Department of Chemical and Biological Engineering, Applied Rheology Center,

Slot coating process, as one of pre-metered coatings, plays an important role in manufacturing IT products such as flat panel displays, secondary batteries, etc. The final purpose of this coating process is to coat thin uniform liquid layer on the web or the substrate. Many researchers have studied dynamics and stability of slot coating system with the aid of appropriate approximations (Ruschak, 1976; Higgins an