METHOD FOR PREPARING A THIN FILM DEVICE AND METHOD FOR PREPARING A COMMON MODE FILTER USING THE SAME

摘要

One aspect of the present invention provides a method for preparing a thin film device with an insulation layer from a dry polyimide film and a method for preparing a common mode filter using the same. A method for preparing a thin film device according to this aspect of the present invention includes the steps of forming at least one first conductive pattern on a substrate; placing a dry polyimide film on the first conductive pattern; applying a force to the dry polyimide film such that the dry polyimide film fills spaces in the first conductive pattern; and forming at least one second conductive pattern on the dry polyimide film.