Iron-catalytic growth of prism-shaped single-crystal silicon nanowires by chemical vapor deposition of silane

2005 ◽  
Vol 411 (1-3) ◽  
pp. 198-202 ◽  
Author(s):  
Chen Li ◽  
Chi Gu ◽  
Zengtao Liu ◽  
Jinxiao Mi ◽  
Yong Yang
1989 ◽  
Vol 146 ◽  
Author(s):  
J.L. Crowley ◽  
J.C. Liao ◽  
P.H. Kleins ◽  
G.J. Campisi

ABSTRACTThe deposition of beta Silicon Carbide unto single crystal silicon (100) wafers using rapid thermal chemical vapor deposition (RTCVD) has been carried out using silane and ethylene as the source gases. Deposition temperatures were varid from 1100°C to 1300°C. Auger analysis revealed the silicon carbide films to be stoichiometric at all temperatures. Infrared spectroscopy data taken between 1200 cm−1 and 60° Cm−1 show the appearance of the longitudinal optical phonon at 974 cm−1 and the transverse optical phonon at 794 cm−1 in samples deposited at 1200°C and above. Stress in the films deposited on the single crystal silicon substrates is seen to go from zero or slightly compressive at 11O0°C to strongly tensile at 1300°C.


1988 ◽  
Vol 131 ◽  
Author(s):  
Wei Lee ◽  
Leonard V. Interrante ◽  
Corrina Czekaj ◽  
John Hudson ◽  
Klaus Lenz ◽  
...  

ABSTRACTDense silicon carbide films have been prepared by low pressure chemical vapor deposition (LPCVD) using a volatile, heterocyclic, carbosilane precursor, MeHSiCH2SiCH2Me(CH2SiMeH2). At deposition temperatures between 700 and 800° C, polycrystalline, stoichiometric SiC films have been deposited on single crystal silicon and fused silica substrates. Optical microscopy and SEM analyses indicated formation of a transparent yellow film with a uniform, featureless surface and good adherence to the Si(lll) substrate. The results of preliminary studies of the nature of the gaseous by-products of the CVD processes and ultrahigh vacuum physisorption and decomposition of the precursor on Si(100) substrates are discussed.


1990 ◽  
Vol 198 ◽  
Author(s):  
J. W. Osenbach ◽  
Y. H. Ku ◽  
A. Kermani

ABSTRACTRapid Thermal Chemical Vapor Deposition (RTCVD) offers great promise for deposition of high-quality, thin, abrupt interface epitaxial films. In addition, RTCVD systems operate under cold wall environment to minimize particles and cross contamination. SEG of silicon provides both isolation and active device wells with fine dimensional control. A combination of RTCVD and SEG holds great promise for future VLSI circuit technologies. In this paper, we present our results on selective growth of single crystal silicon using RTCVD.


1994 ◽  
Vol 9 (9) ◽  
pp. 2341-2348 ◽  
Author(s):  
K.J. Grannen ◽  
F. Xiong ◽  
R.P.H. Chang

Crystalline thin films of silicon nitride have been grown on a variety of substrates by microwave plasma-enhanced chemical vapor deposition using N2, O2, and CH4 gases at a temperature of 800 °C. X-ray diffraction and Rutherford backscattering measurements indicate the deposits are stoichiometric silicon nitride with varying amounts of the α and β phases. Scanning electron microscopy imaging indicates β-Si3N4 possesses sixfold symmetry with particle sizes in the submicron range. In one experiment, the silicon necessary for growth comes from the single crystal silicon substrate due to etching/sputtering by the nitrogen plasma. The dependence of the grain size on the methane concentration is investigated. In another experiment, an organo-silicon source, methoxytrimethylsilane, is used to grow silicon nitride with controlled introduction of the silicon necessary for growth. Thin crystalline films are deposited at rates of 0.1 μm/h as determined by profilometry. A growth mechanism for both cases is proposed.


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