Nondestructive measurement of machining-induced amorphous layers in single-crystal silicon by laser micro-Raman spectroscopy

2008 ◽  
Vol 32 (3) ◽  
pp. 186-195 ◽  
Author(s):  
Jiwang Yan ◽  
Tooru Asami ◽  
Tsunemoto Kuriyagawa
Optics News ◽  
1986 ◽  
Vol 12 (2) ◽  
pp. 10 ◽  
Author(s):  
Robert M. Silva ◽  
Fred D. Orazio Jr. ◽  
Jean M. Bennett

Open Physics ◽  
2006 ◽  
Vol 4 (1) ◽  
pp. 105-116 ◽  
Author(s):  
Ahti Niilisk ◽  
Mart Moppel ◽  
Martti Pärs ◽  
Ilmo Sildos ◽  
Taavi Jantson ◽  
...  

AbstractThe Raman spectroscopy method was used for structural characterization of TiO2 thin films prepared by atomic layer deposition (ALD) and pulsed laser deposition (PLD) on fused silica and single-crystal silicon and sapphire substrates. Using ALD, anatase thin films were grown on silica and silicon substrates at temperatures 125–425 °C. At higher deposition temperatures, mixed anatase and rutile phases grew on these substrates. Post-growth annealing resulted in anatase-to-rutile phase transitions at 750 °C in the case of pure anatase films. The films that contained chlorine residues and were amorphous in their as-grown stage transformed into anatase phase at 400 °C and retained this phase even after annealing at 900 °C. On single crystal sapphire substrates, phase-pure rutile films were obtained by ALD at 425 °C and higher temperatures without additional annealing. Thin films that predominantly contained brookite phase were grown by PLD on silica substrates using rutile as a starting material.


2010 ◽  
Vol 645-648 ◽  
pp. 551-554
Author(s):  
Makoto Yamaguchi ◽  
M. Fujitsuka ◽  
S. Ueno ◽  
I. Miura ◽  
W. Erikawa ◽  
...  

Raman spectroscopic study is carried on the Vickers indented area on the surface of a single crystal silicon carbide (4H- and 6H-SiC) as a nondestructive structure probe to investigate a residual stress and crystal structure. LO phonon frequency shifts and the broad and weak bands around LO phonon band were observed. The residual strain field around the indentation is discussed.


Author(s):  
N. Lewis ◽  
E. L. Hall ◽  
A. Mogro-Campero ◽  
R. P. Love

The formation of buried oxide structures in single crystal silicon by high-dose oxygen ion implantation has received considerable attention recently for applications in advanced electronic device fabrication. This process is performed in a vacuum, and under the proper implantation conditions results in a silicon-on-insulator (SOI) structure with a top single crystal silicon layer on an amorphous silicon dioxide layer. The top Si layer has the same orientation as the silicon substrate. The quality of the outermost portion of the Si top layer is important in device fabrication since it either can be used directly to build devices, or epitaxial Si may be grown on this layer. Therefore, careful characterization of the results of the ion implantation process is essential.


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