Etching of a-Si:H thin films by hydrogen plasma: A view from in situ spectroscopic ellipsometry

2014 ◽  
Vol 141 (8) ◽  
pp. 084708 ◽  
Author(s):  
Aomar Hadjadj ◽  
Fadila Larbi ◽  
Mickaël Gilliot ◽  
Pere Roca i Cabarrocas
2016 ◽  
Vol 49 (6) ◽  
pp. 538-547 ◽  
Author(s):  
Kristianne Tempelman ◽  
Emiel J. Kappert ◽  
Michiel J.T. Raaijmakers ◽  
Herbert Wormeester ◽  
Nieck E. Benes

2010 ◽  
Vol 107 (4) ◽  
pp. 043517 ◽  
Author(s):  
Y. Yamada ◽  
S. Bao ◽  
K. Tajima ◽  
M. Okada ◽  
M. Tazawa ◽  
...  

2019 ◽  
Vol 19 (4) ◽  
pp. 400-405 ◽  
Author(s):  
Woo Jin Kim ◽  
Eun Kyo Ko ◽  
So Yeun Kim ◽  
Bongju Kim ◽  
Tae Won Noh

1999 ◽  
Vol 591 ◽  
Author(s):  
I.M. Vargas ◽  
J.Y. Manso ◽  
J.R. Guzmán ◽  
B.R. Weiner ◽  
G. Morell

ABSTRACTWe employed in situ ellipsometry in the monitoring of surface damage to monocrystalline silicon (Si) substrates under hydrogen plasma conditions. These measurements were complemented with spectroscopic ellipsometry and Raman spectroscopy, in order to characterize the surface conditions. It was found that heating the Si substrate to 700°C in the presence of molecular hydrogen produces etching of the native oxide layer, which is typically 10 Å thick. When the already hot and bare silicon surface is submitted to hydrogen plasma, it deteriorates very fast, becoming rough and full of voids. Modeling of the spectroscopic ellipsometry data was used to obtain a quantitative physical picture of the surface damage, in terms of roughness layer t ickness and void fraction. The results indicate that by the time a thin film starts to grow on these silicon surfaces, like in the chemical vapor deposition of diamond, the roughness produced by the hydrogen plasma has already determined to a large extent the rough nature of the film to be grown.


2002 ◽  
Author(s):  
Yoshishige Tsuchiya ◽  
Masato Endoh ◽  
Masatoshi Kurosawa ◽  
Raymond T. Tung ◽  
Takeo Hattori ◽  
...  

2008 ◽  
Vol 85 (3) ◽  
pp. 527-533 ◽  
Author(s):  
D. Schmidt ◽  
S. Strehle ◽  
M. Albert ◽  
W. Hentsch ◽  
J.W. Bartha

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