Silicon nitride films by plasma-CVD from SiH4-N2and SiF4-N2-H2gas mixtures

1984 ◽  
Author(s):  
S. Fujita ◽  
Nan-Sheng Zhou ◽  
H. Toyoshima ◽  
T. Ohishi ◽  
A. Sasaki
1996 ◽  
Vol 446 ◽  
Author(s):  
Shinya Okada ◽  
Hideki Matsumura

AbstractSilicon nitride (SiNx) films have been successfully synthesized by the catalytic chemical vapor deposition (cat-CVD) method using a gaseous mixture of silane (SiH4) and ammonia (NH3). In the method, the deposition gases are decomposed by catalytic cracking reactions with a high temperature (1700°C) catalyzer near the substrates, and SiNx films can be deposited at substrate temperatures lower than 400°C without using plasma or photochemical excitation. Nearly stoichiometric Si3N4 films are formed when the flow ratio of NH3 exceeds over 100 times of that of SiH4. These cat-CVD SiNx films show excellent properties. That is, the resistivity, the breakdown voltage, the chemical etch resistance and hydrogen content in the films are almost equivalent to those of high-temperature thermal CVD films. In addition, the surface diffusion length of depositing species is about several-tens μπι and step-coverage itself is conformai. Thus, the cat-CVD SiNx films are regarded not only as a new device passivation films superior to the conventional plasma-CVD films but as a gate insulator for electon devices due to their high quality.


1989 ◽  
Vol 28 (Part 2, No. 12) ◽  
pp. L2316-L2319 ◽  
Author(s):  
Nobumasa Suzuki ◽  
Toshiaki Yoshikawa ◽  
Kazuya Masu ◽  
Kazuo Tsubouchi ◽  
Nobuo Mikoshiba

1988 ◽  
Vol 27 (Part 1, No. 8) ◽  
pp. 1406-1410 ◽  
Author(s):  
Takashi Kuroi ◽  
Kenji Umezawa ◽  
Junji Yamane ◽  
Fumiya Shoji ◽  
Kenjiro Oura ◽  
...  

Shinku ◽  
1987 ◽  
Vol 30 (3) ◽  
pp. 123-129 ◽  
Author(s):  
Minoru SAWADA ◽  
Daijiro INOUE ◽  
Yasoo HARADA

2008 ◽  
Vol 254 (19) ◽  
pp. 6208-6210 ◽  
Author(s):  
M. Matsumoto ◽  
Y. Inayoshi ◽  
M. Suemitsu ◽  
E. Miyamoto ◽  
T. Yara ◽  
...  

1988 ◽  
Vol 27 (Part 1, No. 4) ◽  
pp. 528-533 ◽  
Author(s):  
Takashi Hirao ◽  
Takeshi Kamada ◽  
Masatoshi Kitagawa ◽  
Kentaro Setsune ◽  
Kiyotaka Wasa ◽  
...  

2011 ◽  
Vol 257 (11) ◽  
pp. 5052-5058 ◽  
Author(s):  
Abhijeet Kshirsagar ◽  
Pradeep Nyaupane ◽  
Dhananjay Bodas ◽  
S.P. Duttagupta ◽  
S.A. Gangal

1985 ◽  
Vol 14 (5) ◽  
pp. 573-586 ◽  
Author(s):  
M. Shimozuma ◽  
K. Kitamori ◽  
H. Ohno ◽  
H. Hasegawa ◽  
H. Tagashira

1991 ◽  
Vol 223 ◽  
Author(s):  
A. Castro ◽  
M. Gasset ◽  
C. Gomez-Aleixandre ◽  
O. Sanchez ◽  
J. M. Albella

ABSTRACTFluorinated silicon nitride films deposited from SiF4/NH3 gas mixtures by PACVD at two different frequencies have been investigated. At 13.56 MHz, low deposition rate was detected and no appreciable changes were observed when the deposition parameters varied in a wide range. On the contrary, higher deposition rates were achieved when a 35 KHz frequency was applied. These low frequency silicon nitride films showed an increase in the fluorine content In their structure when the SiF4 flow ratio in the gas mixture was increased, as detected by analytical resolution of the IR spectra. In addition, analysis of the plasma emission spectra has been performed in order to explain the effect of the plasma frequency in the deposition process.


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