Real Time Spectroscopic Ellipsometry Studies of the Solid Phase Crystallization of Amorphous Silicon
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1Wfilament
Turbo-
spectrometer
Collimated SiH 4
I
Photodiode array detector
motor.
trigger
fpowe
control
H2 PH"'3° -1 °"•° Analyzer micro-pr, smori
PC
Detector
ro•- r..sor
FIG. 1 Experimental apparatus used for RTSE studies of the growth and SPC of a-Si:H. The a-Si:H films are deposited by remote PECVD, and the film/substrate structures are heated by a filament mounted in a cavity behind the sample. RTSE is applied to characterize film structure and thickness during growth, the near-surface annealing temperature, and the crystallization kinetics. 170
1 [--- t=0 s
160
" •'•-
"t=50
•3014050 C -T=645 5-
30 -
t=300 s -------
s t=700 t=000s 5 s
a-Si:H n-layerTc=645 0C
20 10 0
0
.
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