Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1662892 | Surface and Coatings Technology | 2006 | 5 Pages |
Abstract
Tantalum nitride (Ta2N) films deposited at various substrate temperatures onto silicon (001) substrates can produce amorphous and crystalline phase with different preferred orientations. Subsequently, the viability of employing them as the diffusion barriers between copper and silicon is investigated by annealing at various temperatures for 30 min. The characterization of the thin films was carried out by four-point probe and X-ray diffraction. The results indicate that the thermal stability of Ta2N with Cu and Si are dependent on the crystallinity of Ta2N. Ta2N phase with the highest (002) preferred orientation exhibits the highest structural stability to prevent copper diffusion more effectively.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Hung-Chin Chung, Chuan-Pu Liu,