Laser reflectometry in situ monitoring structural and growth effects on the electron cyclotron resonance etching of In[sub 0.49]Ga[sub 0.51]P layers in Al-free laser structures

Author(s):  
S. N. M. Mestanza ◽  
N. C. Frateschi
1995 ◽  
Vol 66 (11) ◽  
pp. 5252-5256 ◽  
Author(s):  
Patrick O’Keeffe ◽  
C. O’Morain ◽  
S. Den ◽  
Y. Hayashi ◽  
S. Komuro ◽  
...  

1993 ◽  
Vol 324 ◽  
Author(s):  
D. J. Kahaian ◽  
S. W. Pang

AbstractQuadrupole mass spectrometry (QMS) has been used as an in-situ diagnostic technique for GaAs etched with an electron cyclotron resonance source. Changes in the detected signal intensities for reactive species and etch products have been related to corresponding changes in the etch rate as several process parameters were varied. The detected 75As+ and to a lesser degree, 35C1+ and 70C12+, were observed to follow etch rate as microwave power, rf power, source to sample distance, temperature, and pressure were varied. The self-induced dc bias (IVdcl) determines the etch rate dependence on etch time. The time delay before saturation of the monitored 75As+ signal corresponding to a constant etch rate is inversely proportional to IVdcl. The addition of N2/O2 in a 4:1 ratio to constitute 15% of the total discharge resulted in a 95% decrease in the intensity of the monitored 75As+ signal. The measured etch rate decreased by 75%.


1997 ◽  
Vol 241-243 ◽  
pp. 1217-1221 ◽  
Author(s):  
H. Kokura ◽  
K. Sasaki ◽  
H. Toyoda ◽  
T. Mizuuchi ◽  
K. Kondo ◽  
...  

1993 ◽  
Vol 233 (1-2) ◽  
pp. 253-255 ◽  
Author(s):  
Suraiya Nafis ◽  
Natale J. Ianno ◽  
Paul G. Snyder ◽  
William A. McGahan ◽  
Blaine Johs ◽  
...  

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