Patent ID: 6339012
Filing Date: 2002-01-15
Classification: B05D,H01L

Abstract:
A method for fabricating a thin film of polymer, particularly a semiconducting thin film of polymer with an improved structural order, wherein the thin film is formed by deposition of a polymer material onto a solid substrate material, from a polymer solution formed by means of a solvent, characterized byproviding the polymer solution in a portion of a closed container, such that a free volume is left in the container above the portion with said polymer solution, immersing the substrate material in said polymer solution, withdrawing said substrate material with a thin film deposited thereupon, from said polymer solution with a withdrawal speed being selected dependent on the concentration of said polymer solution, until said substrate material is located in said free volume at a certain distance above said polymer solution, and keeping said substrate material in a vertical position in said free volume, while the solvent evaporates, whereafter said substrate material with said thin film is removed from said container for further drying in a vacuum oven.