Polymeric film formation in spin coating

The results of numerical modeling of polymeric film formation under mass fo rce action are presented. The instability of non-Newtonian liquid front edg e at the initial stage of flow over a disk is studied. The quasi-stationary shape of the liquid film tin front edge vicinity) speading over the surfac e is determined for certain theology laws. At the modeling of the second st age of coating flow, the special attention was paid to the effects connecte d with the two-dimensional character of the flow. The impact of theological properties of a liquid on the free surface shape was studied using codes t hat calculate the two-dimensional nonstationary flow of non-Newtonian liqui d. The factors that determine the final shape of polymeric coating free sur face are discussed.