Patent ID: 8551811
Filing Date: 2013-10-08
Classification: B82Y,C03C,H01B,H01L

Abstract:
1. A manufacturing method of a composite dielectric material doped with rare earth metal oxide, comprising steps of: mixing tetraethylorthosilicate (TEOS) and at least one type of rare earth metal chloride into a silica gel; and processing the silica gel by calcination to reach a predetermined calcination temperature ranged from 700° C. to 1000° C., so that the silica gel is converted into a glass composite of rare earth metal oxide and silicon dioxide to thus form a composite dielectric material having nanoparticles of the rare earth metal oxide, wherein the particle diameter of the nanoparticles is ranged from 2 nm to 10 nm, wherein the composite dielectric material is applied to a surface of a semiconductor wafer to form a dielectric layer, and the dielectric layer comprises the glass composite of the rare earth metal oxide and the silicon dioxide of the composite dielectric material.