Universidad Complutense de Madrid
E-Prints Complutense

Dependence of the physical properties of SiNx : H films deposited by the ECR plasma method on the discharge size

Impacto

Descargas

Último año

Mártil de la Plaza, Ignacio y González Díaz, Germán y García, S. y Martín, J.M. (1998) Dependence of the physical properties of SiNx : H films deposited by the ECR plasma method on the discharge size. Thin Solid Films, 315 (01-02). pp. 22-28. ISSN 0040-6090

[img] PDF
Restringido a Sólo personal autorizado del repositorio hasta 31 Diciembre 2020.

149kB

URL Oficial: http://dx.doi.org/10.1016/S0040-6090(97)00374-X


URLTipo de URL
http://www.sciencedirect.com/Editorial


Resumen

SiNx:H films have been deposited using two different ECR plasma sources attached to a similar deposition chamber, a Compact source and an AX4500 source both from Astex. The sources mainly differ in the discharge volume, 55 cm(3) and 936 cm(3), respectively. Microwave power and N-2/SiH4 gases now ratio have been varied to deposit the films. Deposition rate, infrared absorption spectra, refractive index (n), and optical band gap (E-g) of the films have been measured. Optical diagnosis spectra of the discharges have been recorded during the depositions. Different performances of the sources reflected in the film characteristics have been found. The properties of the films deposited using the Compact source correspond to films with compositions that range from Si-rich to near stoichiometric ones, while when using the AX4500 reactor, the film properties correspond to compositions close to the stoichiometric films or to N-rich ones. When changing from the Compact source to the AX4500 reactor, the signal corresponding to N-2(+) ions and to the excited species, N-2(+) are higher in the AX 4500 than in the Compact one, the deposition rate being higher in the AX 4500 source. The different performances of the sources have been attributed to the different discharge size and diffusion length, being optimal in the case of the AX4500 source.


Tipo de documento:Artículo
Información Adicional:

© Elsevier Science SA. The authors wish to thank Dr. E. Iborra at the E.T.S.I.T. of the Universidad Politécnica of Madrid for facilities offered in infrared measurements. This work has beenpartly supported by the Spanish Government (CICYT) through grant No. TIC 93r0175.

Palabras clave:Electron-Cyclotron-Resonance, Silicon-Nitride Films, Hydrogen Content, CVD.
Materias:Ciencias > Física > Electricidad
Ciencias > Física > Electrónica
Código ID:27057
Depositado:13 Oct 2014 09:37
Última Modificación:13 Oct 2014 09:37

Descargas en el último año

Sólo personal del repositorio: página de control del artículo