FILM AND MANUFACTURING METHOD AT THE SAME

摘要

PURPOSE: A thin film and a manufacturing method thereof are provided to enhance surface roughness by concentrating particles on an upper part or a lower part of a support material with a density difference. CONSTITUTION: Nano particles(30) are coated on a substrate(10) on which a precursor solution of a mixed support material(20) is prepared. The nano particles are concentrated on an upper part of the precursor solution or arranged by itself by using the density difference of the nano particles and the support material. The support material is solidified. The nano particle increases the surface roughness of a thin film(40) on the upper part of the support material.