INVESTIGADORES
LACCONI Gabriela Ines
artículos
Título:
Ellipsometric characterization of copper deposits
Autor/es:
G. SANDMANN; W. PLIETH; G.I. LACCONI; M. LÓPEZ TEIJELO
Revista:
MATERIALS SCIENCE FORUM
Editorial:
Trans. Tech. Publ. Inc.
Referencias:
Año: 1998 vol. 289 p. 465 - 470
ISSN:
0255-5476
Resumen:
The growth of copper layers electrodeposited from acidic solutions is investigated by in situ ellipsometry. The effect of nicotinic acid on the properties of the copper deposits is also reported. Refractive indices and extinction coefficients of films formed under different conditions were obtained by the use of optical models. The ellipsometric results can be interpreted using an anisotropic single layer model for the copper coatings which is related to the morphology of the deposits. The optical constants are strongly dependent on the deposition potential. The presence of the additive modifies slightly the optical properties of the electrodeposited copper layers.
