Metal-organic chemical vapor deposition of NbxTa(1-x)NyOmCn films as diffusion barriers for Cu metallization
In: Proceedings of the 29th international conference on metallurgical coatings and thin films, San Diego, CA, USA, April 22-26, 2002 (ICMCTF2002)Thin solid films 420-21:548-552
Konferenz
- print, 15 ref
Zugriff:
NbxTa(1-x)NyOmCn diffusion barriers deposited by chemical vapor deposition (CVD) for copper metallization have been investigated. The barriers were deposited at 375 °C with tetrakis-diethylamido-niobium and pentakis-diethylamido-tantalum as precursors. Amorphous thin films can be obtained by thermal deposition at temperatures from 500 to 600 °C. The activation energy of the metal-organic CVD (MOCVD) process was determined to be 79.1±4.8 kJ/mol. By the incorporation of NH3 gas into reactants, both MOCVD deposition temperature and carbon concentration in the NbxTa(1-x)NyOmCn films were reduced. In addition, NH3-plasma post-treatment was implemented to prevent oxygen from being introduced into the barrier films.
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Metal-organic chemical vapor deposition of NbxTa(1-x)NyOmCn films as diffusion barriers for Cu metallization
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Autor/in / Beteiligte Person: | GAU, W. C ; WU, C. W ; CHANG, T. C ; LIU, P. T ; CHU, C. J ; CHEN, C. H ; CHEN, L. J |
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Quelle: | Proceedings of the 29th international conference on metallurgical coatings and thin films, San Diego, CA, USA, April 22-26, 2002 (ICMCTF2002)Thin solid films 420-21:548-552 |
Veröffentlichung: | Lausanne: Elsevier Science, 2002 |
Medientyp: | Konferenz |
Umfang: | print, 15 ref |
ISSN: | 0040-6090 (print) |
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