Characterization of the Element Distribution Within TiN Coatings with SIMS

Autor: Thomas Kolber, Leopold Palmetshofer, Herbert Hutter, K. Piplits
Rok vydání: 2000
Předmět:
Zdroj: Microchimica Acta. 135:105-111
ISSN: 1436-5073
0026-3672
Popis: The distribution of the relevant elements within TiN coatings, made with two different physical deposition methods as the conventional dc vacuum arc method and the filtered high current pulsed arc method (-HCA) are characterized and finally compared. Despite the rougher surface of the dc-arc produced TiN layer, which is due to accumulated droplets, there is no evidence of different stoechiometric composition of Ti and N on the surface. The interface of the dc-arc produced TiN layer (600 nm) is 10 times wider than the one made with the new filtered high current pulsed arc method (60 nm). However the TiN layer made by - HCA shows an inhomogeneous distribution of alumi- num and chlorine in the vertical direction, whereas the dc-arc sample is homogeneous. Furthermore, the TiN layer made by -HCA shows vertically an obvious local maximum of chlorine at a depth of about 130 nm. This vertical local maximum has an homogeneous distribution in horizontal direction, which means that a thin, chlorine enriched layer has been incorporated inside the TiN layer. Nevertheless, quantification by SIMS shows that aluminum as well as chlorine con- centrations of both samples are too low to influence any TiN properties.
Databáze: OpenAIRE
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