Effects of microwave power and bias voltage on deposition of amorphous hydrogenated carbon films using electron cyclotron resonance plasma chemical vapour deposition

1994 ◽  
Vol 13 (24) ◽  
pp. 1793-1796 ◽  
Author(s):  
K. Maruyama ◽  
T. Inoue ◽  
M. Yamamoto ◽  
T. Morinaga ◽  
H. Saitoh ◽  
...  
1994 ◽  
Vol 339 ◽  
Author(s):  
Mohamed Boumerzoug ◽  
Marcel Boudreau ◽  
Peter Mascher ◽  
Paul E. Jessop

ABSTRACTSilicon carbide films were deposited by electron cyclotron resonance plasma chemical vapour deposition, using Ditertiary Butyl Silane (SiH2(C4H9)2), a non-corrosive organic compound, liquid at room temperature and stable in air, as precursor. Depositions were carried out in an Ar/H2 plasma at relatively low temperatures, below 400 °C. The influence of deposition parameters such as substrate temperature, gas flow rates, pressure, and microwave power, was systematically investigated and related to the Si:C ratios and the refractive index. The film composition was measured by Auger electron spectroscopy and the surface morphology was examined by scanning electron microscopy. The deposition rates and refractive indexes were extracted from the conventional ellipsometric functions, psi and delta. The results show that high quality silicon carbide of variable Si:C ratios and with very low levels of impurities are obtained.


2003 ◽  
Vol 788 ◽  
Author(s):  
S. Chattopadhyay ◽  
H. C. Lo ◽  
K. H. Chen ◽  
C. H. Hsu ◽  
L. C. Chen

AbstractSilicon nanotips, grown via electron cyclotron resonance plasma chemical vapour deposition, with apex diameters of ∼2nm and lengths of 1000 nm and densities of 1011/cm2 were used as a new substrate for surface enhanced Raman spectroscopy. Ion beam sputtered gold and silver self assemble on these substrates as nanoparticulates of 4–10 nm diameter and these metallic nanoparticulates assist in the surface enhancement of Raman signals of analytes. Molecules such as Rhodamine 6G and bis-Pyridyl ethylene of varied concentrations, in the range of 10-6-10-10 M, has been studied on these substrates and enhancements in the range of 106-108 were observed.


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