Deposition of silicon dioxide and silicon nitride by remote plasma enhanced chemical vapor deposition

1986 ◽  
Vol 4 (3) ◽  
pp. 681-688 ◽  
Author(s):  
G. Lucovsky ◽  
P. D. Richard ◽  
D. V. Tsu ◽  
S. Y. Lin ◽  
R. J. Markunas
1999 ◽  
Vol 573 ◽  
Author(s):  
J. W. Lee ◽  
K. D. Mackenzie ◽  
D. Johnson ◽  
S. J. Pearton ◽  
F. Ren ◽  
...  

ABSTRACTHigh-density plasma technology is becoming increasingly attractive for the deposition of dielectric films such as silicon nitride and silicon dioxide. In particular, inductively-coupled plasma chemical vapor deposition (ICPCVD) offers a great advantage for low temperature processing over plasma-enhanced chemical vapor deposition (PECVD) for a range of devices including compound semiconductors. In this paper, the development of low temperature (< 200°C) silicon nitride and silicon dioxide films utilizing ICP technology will be discussed. The material properties of these films have been investigated as a function of ICP source power, rf chuck power, chamber pressure, gas chemistry, and temperature. The ICPCVD films will be compared to PECVD films in terms of wet etch rate, stress, and other film characteristics. Two different gas chemistries, SiH4/N2/Ar and SiH4/NH3/He, were explored for the deposition of ICPCVD silicon nitride. The ICPCVD silicon dioxide films were prepared from SiH4/O2/Ar. The wet etch rates of both silicon nitride and silicon dioxide films are significantly lower than films prepared by conventional PECVD. This implies that ICPCVD films prepared at these low temperatures are of higher quality. The advanced ICPCVD technology can also be used for efficient void-free filling of high aspect ratio (3:1) sub-micron trenches.


1992 ◽  
Vol 284 ◽  
Author(s):  
G. Lucovsky ◽  
Y. Ma ◽  
S. S. He ◽  
T. Yasuda ◽  
D. J. Stephens ◽  
...  

ABSTRACTConditions for depositing quasi-stoichiometric silicon nitride films by low-temperature, remote plasma-enhanced chemical-vapor deposition, RPECVD, have been identified using on-line Auger electron spectroscopy, AES, and off-line optical and infrared, IR, spectroscopies. Quasi-stoichiometric films, by the definition propose in this paper, do not display spectroscopic evidence for Si-Si bonds, but contain bonded-H in Si-H and Si-NH arrangements. Incorporation of RPECVD nitrides into transistor devices has demonstrated that electrical performance is optimized when the films are quasi-stoichiometric with relatively low Si-NH concentrations.


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