The influence of size effect of conductivity on the microwave absorption properties of thin Al films
terry liau;Hao Du;;;;Li-shi WEN
中科院金属所
Cite this article:
terry liau; Hao Du; Li-shi WEN. The influence of size effect of conductivity on the microwave absorption properties of thin Al films. Acta Metall Sin, 2008, 44(9): 1099-1104 .
Abstract Thin Aluminum films with different thickness were deposited on PET substrate by Mid-frequency Magnetron Sputtering (MFMS). The DC conductivity of these thin films was measured using linear four probe method. The microwave absorption properties of the Al-FR4 epoxy layered structure were characterized by vector network analyzer. The results indicated that the size effect on conductivity have a pronounced influence on microwave absorption properties of the thin aluminum film, which were verified by theoretical calculation with transfer matrix method.