Patent ID: 8558324

Claim:
A method for fabricating a composite dielectric thin film, the method comprising: preparing a ceramic target with a composition ratio of (dielectric) 1-x -(filler) x (x=0.3˜0.6), which comprises a first phase consisting of the dielectric and a second phase consisting of the filler, and the first and second phases being mixed with each other and performing physical vapor deposition on the ceramic target at a room temperature or up to 200° C. to thereby obtain a partially nanocrystalline composite dielectric thin film on a substrate which is a plastic substrate, a glass substrate or a silicon substrate, with an insulating film formed thereon, wherein the composite dielectric thin film comprises a dielectric matrix which is amorphous and amorphous, with partially nanocrystalline, and insulating fillers which are crystalline and uniformly distributed within the dielectric matrix without performing further heat treatment, and wherein the dielectric contains Bi 1.5 Zn 1.0 Nb 1.5 O 7 (BZN).