Patent ID: 7156945
Filing Date: 2007-01-02
Classification: B29C,B29K,B32B,C23C,G02F,G09F,H01L,H05K,Y10S,Y10T

Abstract:
1. A process for forming a patterned thin film structure on a substrate, comprising: printing on the substrate with a first material a pattern defining a positive image of a decorative design to be formed on the substrate such that the first material is printed in the area where the thin film structure is to be formed, the first material being strippable using a first solvent; overcoating the printed surface of the substrate with a second material that is not strippable using the first solvent; stripping the first material away using the first solvent in a process that strips away the first material and the second material formed on the first material without stripping away the second material formed directly on the substrate, such that the second material remains coated on the substrate where the first material was not present, thereby defining a negative image of the decorative design to be formed on the substrate such that the second material remains in the area where the thin film structure is not to be formed; depositing a thin film material on the patterned substrate; and stripping to remove the second material and the thin film material deposited on the second material to form the thin film structure in the shape of the decorative design; wherein the substrate and the patterned thin film structure formed thereon are suitable for use as an IMD decorated film.